The Genius Files by Dan Gutman one of the best book I know of. It is 285 pages long but wants you read it you will never let go of it. The book is basically about these two twins that are about to turn thirteen. One name is coke and the other is pepsi. weird i know. they live in california . In this book this author is super funny and writes in that way. They always like to go on a adventure and love to accomplished missions but this mission is unstoppable!