Jack and Gwen are back in this dynamic follow-up to The Lost Property Office. It’s been a year since Jack Buckles discovered the Keep beneath Baker Street, an underground tower no Section Thirteen was ever supposed to see; a year since his dad fell into a coma. Nothing has been the same since. Jack’s tracker abilities are on the fritz, Gwen’s not speaking to him and, what’s worse, there’s a pounding voice in his head calling for “the flame.” Then, Jack and Gwen are framed for the theft of a historic crown jewel—the Black Prince’s Ruby, one of three cursed rubies said to bring knowledge, loyalty, and the command of nations to whomever wields them all. Now, they must retrieve the other jewels before the true thief does, or risk unleashing a reign of terror unlike anything history’s ever seen.

In the dynamic follow-up to The Lost Property Office, Jack and Gwen are framed for the theft of a historic crown jewel--the Black Prince's Ruby, one of three cursed rubies said to bring knowledge, loyalty, and the command of nations to whomever wields them all. 5 1/2 x 7.

"An American boy travels with his family to London for his mother to find his father, but it turns out his father was involved with something nefarious--and now so is he"--

Four girls are about to become princesses! But can they keep their kingdom safe? In the Jewel Kingdom, four girls rule: Roxanne is the Ruby Princess, Sabrina is the Sapphire Princess, Emily is the Emerald Princess, and Demetra is the Diamond Princess.But soon-to-be Ruby Princess, Roxanne, is not so sure she's ready to be royalty. She decides to run away! But before she can get very far, she learns of a plot to take over the Jewel Kingdom. Another girl is pretending to be her. If Roxanne doesn't act fast, the Jewel Kingdom might be lost forever!

Praise for Design Patterns in Ruby "Design Patterns in Ruby documents smart ways to resolve many problems that Ruby developers commonly encounter. Russ Olsen has done a great job of selecting classic patterns and augmenting these with newer patterns that have special relevance for Ruby. He clearly explains each idea, making a wealth of experience available to Ruby developers for their own daily work." —Steve Metsker, Managing Consultant with Dominion Digital, Inc. "This book provides a great demonstration of the key 'Gang of Four' design patterns without resorting to overly technical explanations. Written in a precise, yet almost informal style, this book covers enough ground that even those without prior exposure to design patterns will soon feel confident applying them using Ruby. Olsen has done a great job to make a book about a classically 'dry' subject into such an engaging and even occasionally humorous read." —Peter Cooper "This book renewed my interest in understanding patterns after a decade of good intentions. Russ picked the most useful patterns for Ruby and introduced them in a straightforward and logical manner, going beyond the GoF's patterns. This book has improved my use of Ruby, and encouraged me to blow off the dust covering the GoF book." —Mike Stok "Design Patterns in Ruby is a great way for programmers from statically typed objectoriented languages to learn how design patterns appear in a more dynamic, flexible language like Ruby." —Rob Sanheim, Ruby Ninja, Relevance Most design pattern books are based on C++ and Java. But Ruby is different—and the language's unique qualities make design patterns easier to implement and use. In this book, Russ Olsen demonstrates how to combine Ruby's power and elegance with patterns, and write more sophisticated, effective software with far fewer lines of code. After reviewing the history, concepts, and goals of design patterns, Olsen offers a quick tour of the Ruby language—enough to allow any experienced software developer to immediately utilize patterns with Ruby. The book especially calls attention to Ruby features that simplify the use of patterns, including dynamic typing, code closures, and "mixins" for easier code reuse. Fourteen of the classic "Gang of Four" patterns are considered from the Ruby point of view, explaining what problems each pattern solves, discussing whether traditional implementations make sense in the Ruby environment, and introducing Ruby-specific improvements. You'll discover opportunities to implement patterns in just one or two lines of code, instead of the endlessly repeated boilerplate that conventional languages often require. Design Patterns in Ruby also identifies innovative new patterns that have emerged from the Ruby community. These include ways to create custom objects with metaprogramming, as well as the ambitious Rails-based "Convention Over Configuration" pattern, designed to help integrate entire applications and frameworks. Engaging, practical, and accessible, Design Patterns in Ruby will help you build better software while making your Ruby programming experience more rewarding.

Ruby Redfort: Undercover agent, code-cracker and thirteen-year-old genius.

The complete Section 13 series is now available in a collectible boxed set! Jack Buckles and his family relocate to London, England, from the United States after the disappearance of his father, with the hope of finding him. What Jack finds instead is a family secret that will change the course of his life—and possibly the course of history—forever. This action-packed boxed set includes: The Lost Property Office The Fourth Ruby The Clockwork Dragon