Framed!

Twelve-year-old Florian has moved again and, to cope, puts into play the technique he calls TOAST, Theory Of All Small Things, looking closely at all the tiny details of life to make inferences about bigger things. He meets the clever Margaret, and he and she quickly set up their own detective agency to solve problems. And, almost inadvertently, Florian and Margaret find themselves working with the FBI itself on a case that involves stolen paintings and crime lords. You can't help but admire the brilliant workings of this twelve-year-old mind as he solves little and big puzzles in the course of his regular day. It's a wild ride of a book.