Mac Barnett 
Ghostwriter Secret [EPUB ebook] 

Steve Brixton, top detective, rescuer of quilts and also America, has opened up his own agency. He has a crime lab that doubles as a bedroom. He has a chum named Dana. And he has lots of business cards. So when the Fairview Diamond goes missing, he knows just what to do. But when a simple track-and-retrieve spirals out of control, Steve finds himself in the middle of his biggest case yet: Mac Arthur Bart, the author of Steve’s beloved Bailey Brothers books, has been abducted! With the aid of his handy Bailey Brothers Detective Handbook and one very reluctant Dana, Steve will confront goons, bullies, and maybe a bee or two, all to rescue America’s #1 Mystery King.