Ruby Redfort By Lauren Child is about a smart girl named Ruby Redfort. She works for a undercover spy agency and does diffiult code cracking for them. But, she is solving a mystery that just doesn't envolve code cracking and might just take away her life! I reccomend this book because it is action packed and is really exciting making it hard for you to put the book down. The book is also a fantastic example of using simple, compound and complex sentences.