Learn and explore the fundamentals of data analysis with power of Mathematica About This Book Use the power of Mathematica to analyze data in your applications Discover the capabilities of data classification and pattern recognition offered by Mathematica Use hundreds of algorithms for time series analysis to predict the future Who This Book Is For The book is for those who want to learn to use the power of Mathematica to analyze and process data. Perhaps you are already familiar with data analysis but have never used Mathematica, or you know Mathematica but you are new to data analysis. With the help of this book, you will be able to quickly catch up on the key points for a successful start. What You Will Learn Import data from different sources to Mathematica Link external libraries with programs written in Mathematica Classify data and partition them into clusters Recognize faces, objects, text, and barcodes Use Mathematica functions for time series analysis Use algorithms for statistical data processing Predict the result based on the observations In Detail There are many algorithms for data analysis and it’s not always possible to quickly choose the best one for each case. Implementation of the algorithms takes a lot of time. With the help of Mathematica, you can quickly get a result from the use of a particular method, because this system contains almost all the known algorithms for data analysis. If you are not a programmer but you need to analyze data, this book will show you the capabilities of Mathematica when just few strings of intelligible code help to solve huge tasks from statistical issues to pattern recognition. If you're a programmer, with the help of this book, you will learn how to use the library of algorithms implemented in Mathematica in your programs, as well as how to write algorithm testing procedure. With each chapter, you'll be more immersed in the special world of Mathematica. Along with intuitive queries for data processing, we will highlight the nuances and features of this system, allowing you to build effective analysis systems. With the help of this book, you will learn how to optimize the computations by combining your libraries with the Mathematica kernel. Style and approach This book takes a step-by-step approach, accompanied by examples, so you get a better understanding of the logic of writing algorithms for data analysis in Mathematica. We provide a detailed explanation of all the nuances of the Mathematica language, no matter what your level of experience is.

Master the advanced concepts of game development for iOS to build impressive games About This Book Create a complete game with advanced techniques through the course of the book using in-depth, hands-on instructions Learn how to multi-task and improve performance optimization in your game playing experience The author, Miguel, has 11 years of iOS game development using xcode and has released over 10 games to the Apple AppStoreMaster player movement using touch controls as well as discuss motion controls Who This Book Is For This book is for those who have created an iOS game already and want to hone their skills. A reasonable level of knowledge and an understanding of the core elements and applications would be helpful. What You Will Learn Blast off and start developing fun games Optimize the assets for the best performance in the game app Master player movement using touch controls as well as discuss motion controls Perform bug Squashing by testing and debugging Design interesting various characters and enemies for your game Test your game on both, the simulator on the computer and on real devices Tweak and fine tune the code and graphics before the release of your app Uncover some awesome new gameplay by adding in multiplayer elements, to get more people playing together In Detail iOS is an operating system for Apple manufactured phones and tablets. Mobile gaming is one of the fastest-growing industries, and compatibility with iOS is now becoming the norm for game developers. SpriteKit is part of the native SDK from Apple, and enables developers to make simple entry into game development without unnecessary overhead and a long learning process. SpriteKit also provides other functionality that is useful for games, including basic sound playback support and physics simulation. In addition, Xcode provides built-in support for SpriteKit so that you can create complex special effects and texture atlases directly in Xcode. This combination of framework and tools makes SpriteKit a good choice for games and other apps that require similar kinds of animation. Become a master in iOS game development through this fast and fun guide! In the beginning, we’ll tell you everything you need to plan and design your game. You’ll then start developing your game through step-by-step instructions using the various built-in technologies of Xcode. From there on, we discuss how to deploy your game to the iOS App Store, as well as monetizing it to make more revenue. You will also learn advanced techniques to improve your game playing experience, including better multi-tasking, improved performance optimization, battery management, and more. To end the book off, we’ll show you how to update your game with different features, then port the update to the App Store. Style and approach This book provides an easy-to-understand and fun approach to game development, with step-by-step instructions and detailed explanation of each block of code. The topics covered range from easy to advanced, so buckle up for a fast-paced ride!

Discover all the secrets of Unreal Engine and create seven fully functional games with the help of step-by-step instructions About This Book Understand what a Blueprint is and how to create a complex visual *ing code Discover the infinite possibilities that Unreal Engine offers, and understand which tool to use, where and when Learn to think like a real game developer in order to create enjoyable and bug-free games using this comprehensive and practical handbook Who This Book Is For This book is ideal for intermediate level developers who know how to use Unreal Engine and want to go through a series of projects that will further their expertise. Working knowledge of C++ is a must. What You Will Learn Write clean and reusable Blueprint *s Develop any kind of game you have in mind, following the rules used by experts Move through Unreal Engine 4, always knowing what you are doing and where to find the right tool for your needs Integrate C++ code into your projects using Visual Studio and the tools that Unreal provides Extricate between classes, nodes, interfaces, macros, and functions Work with different types of assets, from 3D objects to audio sources, from UI buttons to animations Explore all the aspects of the game logic—collisions, navigation meshes, matinees, volumes, events, and states In Detail With the arrival of Unreal Engine 4, a new wonderful tool was born: Blueprint. This visual *ing tool allows even non-programmers to develop the logic for their games, allowing almost anyone to create entire games without the need to write a single line of code. The range of features you can access with Blueprint * is pretty extensive, making it one of the foremost choices for many game developers. Unreal Engine Game Development Blueprints helps you unleash the real power of Unreal by helping you to create engaging and spectacular games. It will explain all the aspects of developing a game, focusing on visual *ing, and giving you all the information you need to create your own games. We start with an introductory chapter to help you move fluidly inside the Blueprint user interface, recognize its different components, and understand any already written Blueprint *. Following this, you will learn how to modify generated Blueprint classes to produce a single player tic-tac-toe game and personalize it. Next, you will learn how to create simple user interfaces, and how to extend Blueprints through code. This will help you make an informed decision between choosing Blueprint or code. You will then see the real power of Unreal unleashed as you create a beautiful scene with moving, AI controlled objects, particles, and lights. Then, you will learn how to create AI using a behavior tree and a global level Blueprint, how to modify the camera, and how to shoot custom bullets. Finally, you will create a complex game using Blueprintable components complete with a menu, power-up, dangerous objects, and different weapons. Style and approach This is an easy-to-follow guide full of practical game examples. Each chapter contains step-by-step instructions to build a complete game and each game uses a different tool in order to cover all the topics in a detailed and progressive manner.

Bestselling author Beverly Jenkins returns to the charming town of Henry Adams, Kansas, in this heartwarming story of family, friendship, and the surprises hidden in our livesHenry Adams has had its fair share of drama ever since Bernadine Brown bought the town with her divorce settlement. Now, just when things are starting to settle down, it's about to get crazy again. . . .Cephas Patterson doesn't just want to be left alone—if you dare step onto his property, he'll meet you with a shotgun and a warning to stay away from his gold. He reminds Zoey of the lonely time she spent living on the streets, so she quietly begins leaving him small offerings. But then Cephas dies and leaves a saddlebag of gold—to Zoey.And that's not all. Zoey's parents are going through a trial separation; her former BFF, Devon, is giving her fits; and her friend Crystal has run away from home. Then there's Bernadine's mean-spirited baby sister, who has arrived unexpectedly, and an ongoing battle with a neighboring town that's about to heat up.Will Henry Adams ever be the same again?

Wives & Lovers is a collection of three short novels from the author whom the Boston Globe calls "one of the most expert and substantial of our writers."Requisite Kindness -- published here for the first time -- tells the story of a man who must come to terms with a life of treating women badly when he goes to live with his sister and dying mother. Rare & Endangered Species demonstrates how a wife and mother's suicide reverberates in the small community where she lived, and affects the lives of people who don't even know her. Finally, Spirits is about the pain that men and women can -- and do -- inflict upon each other. These three very different works illuminate the unadorned core of love -- not the showy, more celebrated sort but what remains when lust, jealousy, and passion have been stripped away.

Squarely in the crosshairs of the Church's heresy hunters, can Pastor Sam survive?It's a madcap year in Harmony, Indiana, as Sam Gardner struggles through his fourth year as pastor of the Harmony Friends Meeting. Join the thousands of readers who have fallen in love with the charming small town that hosts what BookPage calls "the biggest collection of crusty, lovable characters since James Herriot settled in Yorkshire."

Tras la muerte de sus padres en un accidente automovilístico, el joven Andrés Segovia y sus hermanos se ven obligados a mudarse a México con el resto de la familia. Esta decisión, a pesar de haber sido tomada con la mejor de las intenciones, es un error que trastornará para siempre la vida de Andrés.Después de varios a?os de vivir en México luchando contra el estigma de ser un hispano nacido en Estados Unidos y sintiéndose siempre fuera de lugar, Andrés decide regresar a los Estados Unidos. Las autoridades lo detienen un día y lo ponen bajo la tutela de una terapeuta llamada Grace Delgado, una viuda que vive en El Paso. Su relación se convierte pronto en una gran amistad, y justo cuando comienzan a florecer y a disfrutar de su vida juntos, se descubren secretos inconcebibles acerca de la muerte de los padres de Andrés . . . secretos que bien pueden destruir la posibilidad que tienen de ser felices.

Dani's dreams are anything but restful. Each night, a wolf waits in the moonlight to lead her into the forest for a rendezvous with a mysterious man. Like a choreographed dance, they repeat the same words, the same actions, which lead inevitably to a sensual frenzy that ends too soon. Tonight, Dani's determined to change the course of her dream, slow the pace and find the rapture she's sure awaits her…

Born mute, speaking only in sign, Edgar Sawtelle leads an idyllic life with his parents on their farm in remote northern Wisconsin. For generations, the Sawtelles have raised and trained a fictional breed of dog whose thoughtful companionship is epitomized by Almondine, Edgar's lifelong friend and ally. But with the unexpected return of Claude, Edgar's paternal uncle, turmoil consumes the Sawtelles' once peaceful home. When Edgar's father dies suddenly, Claude insinuates himself into the life of the farm—and into Edgar's mother's affections.Grief-stricken and bewildered, Edgar tries to prove Claude played a role in his father's death, but his plan backfires—spectacularly. Forced to flee into the vast wilderness lying beyond the farm, Edgar comes of age in the wild, fighting for his survival and that of the three yearling dogs who follow him. But his need to face his father's murderer and his devotion to the Sawtelle dogs turn Edgar ever homeward.David Wroblewski is a master storyteller, and his breathtaking scenes—the elemental north woods, the sweep of seasons, an iconic American barn, a fateful vision rendered in the falling rain—create a riveting family saga, a brilliant exploration of the limits of language, and a compulsively readable modern classic.

Carved into a moving island of ice twice the size of the United States, Ice Station Grendel has been abandoned for more than seventy years. The twisted brainchild of the finest minds of the former Soviet Union, it was designed to be inaccessible and virtually invisible. But an American undersea research vessel has inadvertently pulled too close—and something has been sighted moving inside the allegedly deserted facility, something whose survival defies every natural law. And now, as scientists, soldiers, intelligence operatives, and unsuspecting civilians are drawn into Grendel's lethal vortex, the most extreme measures possible will be undertaken to protect its dark mysteries—because the terrible truths locked behind submerged walls of ice and steel could end human life on Earth.

MeteorJS makes full-stack JavaScript Application Development simple – Learn how to build better modern web apps with MeteorJS, and become an expert in the innovative JavaScript framework About This Book Get your dream project up and running by building exceptional MeteorJS applications in a matter of days Learn how to integrate other JavaScript frameworks into your MeteorJS project and become an expert in full-stack development Go beyond coding and learn how to make modern design decisions – from mobile design to SEO – that drive great user experiences Who This Book Is For If you’ve already had some experience with MeteorJS but want to learn how to build even better modern web application, this book has been created for you. It provides you with a comprehensive look at one of those most important frameworks being used for the modern web today.What You Will Learn Get to grips with the basics and learn how to build a complete real-time application with MeteorJS Find out how Meteor makes full-stack development simple – become a better developer, fast. Use some of the most effective testing tools in modern web development to troubleshoot, debug and optimize your app Find out how to write custom packages for applications – so you can build your project exactly how you want Integrate React and Angular into your project Design and develop high quality animations that will give your UI the edge Build MeteorJS to serve as REST-based application and reactive system Learn how to host a MeteorJS application and then scale it for data Find out how MeteorJS can help you build for mobile Learn how to make sure you implement an effective SEO strategy in your MeteorJS application In Detail The web is dead – applications now rule our online experiences. But how are you going to build themWell, if you’ve been paying attention, you might already have tried your hand with MeteorJS, the JavaScript framework that helps you build complete full-stack web applications that are responsive and fast with ease. Mastering MeteorJS Application Development shows you how to do even more with MeteorJS – if you’re ready to try a comprehensive course through one of the most exciting frameworks in web development today, this is the book you need. Designed to take you through the entire process of building an advanced multipage application with Meteor, you’ll be able to bring your web development ideas with surprising ease. You’ll not only learn how Meteor makes web development easier, but also how you can make using Meteor easier, by automating and simplifying tasks so you can be confident you have full control of everything in your workflow – especially everything that could go wrong. From automated testing to integrating other useful frameworks such as Angular and D3, each chapter covers a crucial element in the Meteor development process. Discover how to integrate animations using Meteor’s Blaze, to give your UI designs the edge, and explore reactive programming to effectively harness RESTful systems in your projects. You will also learn how to deploy and scale your application, two crucial aspects of modern development and vital in a changing digital environment with users expecting a product and experience that delivers. With further insights on developing for mobile – and how Meteor can help you tackle the challenges of the trend – and details on incorporating SEO strategies into your application, this book isn’t just a code tutorial – it’s about creating a product that users love. Style and approach This book is a practical guide that teaches you different ways to create custom packages, efficient client and server code, and more using Meteor. This book is packed with perfect examples and explanations to help you understand the concepts. With the perfect mix of theory and practical experience, it will equip you to become a professional MeteorJS developer.

Over 60 recipes to help you create professional and exquisite UIs to make your games more immersive About This Book Design and develop interactive and professional user interfaces (UIs) for games in Unity Discover how to implement and deal with various in-game UI elements that will impress your players This practical recipe guide will help you to efficiently create powerful and remarkable UIs using C# code Who This Book Is For If you are a game developer with some experience in Unity and C# and want to create the best interactive experience fast and intuitively, then this book is for you. If you are an intermediate game developer or an expert, these recipes will help you bring out the power of the new UI Unity system. What You Will Learn Implement different kinds of counters and healthbars Deal with timers and find out how to format them Animate and vivify UI elements Handle runtime customizations Add complex Head-up displays (HUDs) Design and implement 3D UIs Integrate minimaps in the UI In Detail With the increasing interest in game development, it's essential to design and implement a UI that reflects the game settings and shows the right information to the player. The Unity system is used to create complex and aesthetically pleasing user interfaces in order to give a professional look and feel to a game. Although the new Unity UI system is powerful and quite easy to use, by integrating it with C# *s, it's possible to realize the potential of this system and bring an impressive UI to games.This guide is an invaluable collection of recipes if you are planning to use Unity to develop a game. Starting with the basic concepts of the UI components, we’ll take you all the way through to creating complex interfaces by including animations and dynamics elements. Based on real-world problems, these recipes will start by showing you how to make common UI elements such as counters and healthbars. You will then get a walkthrough of how to manage time using timers, and will learn how to format them. You will move on to decorating and animating the UI elements to vivify them and give them a professional touch. Furthermore, you will be guided into the 3D UI world and into HUD *ing. Finally, you will discover how to implement complex minimaps in the interface.Style and approach Interactive, easy-to-follow recipes will help you create and implement UIs that make gaming an exhilarating experience.

Make applications cross-communicate using Apache Thrift! About This Book Leverage Apache Thrift to enable applications written in different programming languages (Java, C++, Python, PHP, Ruby, and so on) to cross-communicate. Learn to make your services ready for real-world applications by using stepwise examples and modifying code from Industry giants. Be a crackerjack at solving Apache Thrift-related issues. Who This Book Is For If you have some experience of developing applications in one or more languages supported by Apache Thrift (C++, Java, PHP, Python, Ruby, and others) and want to broaden your knowledge and skills in building cross-platform, scalable applications, then this book is for you. What You Will Learn Understand the need for cross-language services and the basics of Apache Thrift. Learn how Apache Thrift works and what problems it solves. Determine when to use Apache Thrift instead of other methods (REST API), and when not to use it. Create and run an example application using Apache Thrift. Use Apache Thrift in your applications written in different languages supported by Apache Thrift (PHP, Python, Ruby, Java, and C++). Handle exceptions and deal with errors. Modify code in different languages.< Use Apache Thrift in the production environments of big applications. In Detail With modern software systems being increasingly complex, providing a scalable communication architecture for applications in different languages is tedious. The Apache Thrift framework is the solution to this problem! It helps build efficient and easy-to-maintain services and offers a plethora of options matching your application type by supporting several popular programming languages, including C++, Java, Python, PHP, Ruby, Erlang, Perl, Haskell, C#, Cocoa, JavaScript, Node.js, Smalltalk, OCaml, and Delphi. This book will help you set aside the basics of service-oriented systems through your first Apache Thrift-powered app. Then, progressing to more complex examples, it will provide you with tips for running large-scale applications in production environments. You will learn how to assess when Apache Thrift is the best tool to be used. To start with, you will run a simple example application, learning the framework's structure along the way; you will quickly advance to more complex systems that will help you solve various real-life problems. Moreover, you will be able to add a communication layer to every application written in one of the popular programming languages, with support for various data types and error handling. Further, you will learn how pre-eminent companies use Apache Thrift in their popular applications. This book is a great starting point if you want to use one of the best tools available to develop cross-language applications in service-oriented architectures. Style and approach A stepwise guide to learning Apache Thrift, with ready-to-run examples explained comprehensively. Advanced topics supply the inspiration for further work.

An effective guide to geographic information systems and remote sensing analysis using Python 3 About This Book Construct applications for GIS development by exploiting Python This focuses on built-in Python modules and libraries compatible with the Python Packaging Index distribution system—no compiling of C libraries necessary This practical, hands-on tutorial teaches you all about Geospatial analysis in Python Who This Book Is For If you are a Python developer, researcher, or analyst who wants to perform Geospatial, modeling, and GIS analysis with Python, then this book is for you. Familarity with digital mapping and analysis using Python or another *ing language for automation or crunching data manually is appreciated. What You Will Learn Automate Geospatial analysis workflows using Python Code the simplest possible GIS in 60 lines of Python Mold thematic maps with Python tools Get hold of the various forms that geospatial data comes in Produce elevation contours using Python tools Create flood inundation models Apply Geospatial analysis to find out about real-time data tracking and for storm chasing In Detail Geospatial Analysis is used in almost every field you can think of from medicine, to defense, to farming. This book will guide you gently into this exciting and complex field. It walks you through the building blocks of geospatial analysis and how to apply them to influence decision making using the latest Python software. Learning Geospatial Analysis with Python, 2nd Edition uses the expressive and powerful Python 3 programming language to guide you through geographic information systems, remote sensing, topography, and more, while providing a framework for you to approach geospatial analysis effectively, but on your own terms. We start by giving you a little background on the field, and a survey of the techniques and technology used. We then split the field into its component specialty areas: GIS, remote sensing, elevation data, advanced modeling, and real-time data. This book will teach you everything you need to know about, Geospatial Analysis from using a particular software package or API to using generic algorithms that can be applied. This book focuses on pure Python whenever possible to minimize compiling platform-dependent binaries, so that you don’t become bogged down in just getting ready to do analysis. This book will round out your technical library through handy recipes that will give you a good understanding of a field that supplements many a modern day human endeavors. Style and approach This is a practical, hands-on tutorial that teaches you all about Geospatial analysis interactively using Python.

The most dangerous road trip in history continues in the wacky third book of Dan Gutman's New York Times bestselling The Genius Files series, following twins Coke and Pepsi McDonald as they dodge nefarious villains all the way to Graceland. With the real-kid humor that has earned him millions of readers around the world, and featuring all new weird-but-true locations around America, this third book in the New York Times bestselling Genius Files series is one wild ride!The genius twins Coke and Pepsi have narrowly escaped a vat of a Spam, a pit of boiling fry oil, and a score of crazed adults all bent on killing them. But just when they thought they were safe, their arch nemesis Dr. Herman Warsaw reappeared, engaged to their Aunt Judy! Whoa—didn't he die already?! Now, as the twins continue their family road trip from Washington D.C. through the South, it will take every bit of their genius abilities to outwit their wacky enemies. It doesn't help that their parents remain totally oblivious! When they finally get to Graceland, Elvis's home in Memphis, Tennessee, Coke and Pepsi come to an explosive conclusion you'll have to read to believe!

For fans of Lemony Snicket’s Series of Unfortunate Events and Trenton Lee Stewart’s Mysterious Benedict Society comes the fourth book in the Incorrigible Children of Ashton Place, the acclaimed and hilarious Victorian mystery series by Maryrose Wood.In The Interrupted Tale, Miss Penelope Lumley receives an invitation to speak at the annual Celebrate Alumnae Knowledge Exposition (or CAKE) at the Swanburne Academy for Poor Bright Females. Optoomuchstic as ever, Penelope hopes to give her CAKE talk, see some old friends, and show off the Incorrigible children to Miss Mortimer, but instead she finds her beloved school in an uproar.And when Penelope is asked by the Swanburne Academy board of trustees to demonstrate the academic progress of her three wolfish students so the board can judge the true worth of a Swanburne education, the future of her alma mater—and of her job as governess to the Incorrigibles—hangs in the balance.

Kiss Me Again, the sequel to Rachel Vail's beloved contemporary teen romance If We Kiss, follows Charlie (Charlotte) Collins as she struggles with her feelings for her longtime crush Kevin Lazarus after their parents marry and he becomes her stepbrother. It was complicated enough when their parents were only dating and Kevin was going out with Charlie's best friend, Tess. Now, living under one roof, Charlie and Kevin are crossing paths and crossing lines, sneaking around at night and then sitting down to breakfast together as a family. It feels so crazy—exciting, confusing, impossible, and romantic. It can't last, not like this, but if anybody discovers their secret, everything could explode. . . . Praised for her wit and realism, award-winning author Rachel Vail delivers a poignant tale of first love and powerful kisses, at long last answering the question of what happens when a crush so off-limits it has to be fantasy suddenly becomes very real.

The race for survival comes to a thrilling conclusion in the heart-stopping finale to the Darkness Rising trilogy, from #1 New York Times bestselling author Kelley Armstrong.Things are getting desperate for Maya and her friends. Hunted by the powerful St. Clouds and now a rival Cabal as well, they're quickly running out of places to hide.All they have is the name and number of someone who might be able to give them a few answers. Answers to why they're so valuable, and why their supernatural powers are getting more and more out of control. But Maya is unprepared for the truths that await her. And like it or not, she'll have to face down some demons from her past if she ever hopes to move on with her life. Because Maya can't keep running forever.With all the twists, thrills, and romance that have made Kelley Armstrong an international bestseller, plus the surprising return of some fan-favorite characters, The Rising will hold you under its spell long after its breathtaking end.

Enter the magical land of Story in this sequel to Storybound, perfect for fans of Inkheart, The School for Good and Evil, and classic fantasy tales like Ella Enchanted and The Neverending Story. Kids who love fairy tales, dragons, magic, and more will be enchanted by Una Fairchild's unforgettable adventure in Story's End.Story is a land of dashing Heroes, dastardly Villains, and epic quests—and once upon a time, a noble King. But the King vanished so long ago that even the memory of him is lost. Now a cruel Enemy plots to rewrite Story's future, and an ordinary girl named Una Fairchild may be the only one who can stop him. As Una and her friends Peter and Indy race to defeat the Enemy, their quest will take them deep into the secrets of Story's past . . . and Una's own mysterious ties to this fairy-tale kingdom and its long-forgotten King.Discover the richly imagined world, spirited cast of storybook characters, and timeless appeal of Story's End, which closes the book on Una's adventure "with an all-out bang" (ALA Booklist).

Franny's supposed to be working this summer, not flirting. But you can't blame her when guys like Alex and Harry are around. . . . Franny Pearson never dreamed she'd be attending the prestigious Mansfield Summer Theater Program. And she's not, exactly. She's working for her aunt, the resident costume designer. But sewing her fingers to the bone does give her an opportunity to spend time with her crush, Alex Braverman. If only he were as taken with the girl hemming his trousers as he is with his new leading lady.When Harry Cartwright, a notorious flirt, shows more than a friendly interest in Franny, she figures it can't hurt to have a little fun. But as their breezy romance grows more complicated, can Franny keep pretending that Harry is just a carefree flingAnd why is Alex suddenly giving her those deep, meaningful looksIn this charming tale of mixed messages and romantic near-misses, one thing is clear: Flirting might be more trouble than Franny ever expected.

M. T. Anderson meets Cory Doctorow in this teen debut from #1 New York Times bestseller Sean Williams, who also coauthors the Troubletwisters series with Garth Nix.When a coded note promises improvement—the chance to change your body any way you want, making it stronger, taller, more beautiful—Clair thinks it's too good to be true, but her best friend, Libby, falls into a deadly trap.With the help of the school freak and a mysterious stranger, Clair races against the clock and around the world to save Libby, even as every step draws her deeper into a deadly world of cover-ups and conspiracies.Action and danger fuel this near-future tale of technology, identity, and the lengths one girl will go to save her best friend.