Meh. I read this book as a possible book for my 6th grade class to read. It was somewhat interesting to me, as someone with background knowledge on FLW and Chicago. My students, however, would be lost. Even I don't understand what was up pentominoes, nor do I really care to find out (why would someone live their life based on whichever random letters they drew out of their pocket?). There was too many random mystery elements that weren't tied up. I feel that most young people reading it would get bored quickly with this book... I know I did.