Who knows? Encyclopedia Brown, of course! America's Sherlock Holmes in sneakers is back, with ten brand-new solve-it-yourself mysteries to challenge and amaze his fans. You can match wits with the ten-year-old super-sleuth as he and his partner, Sally Kimball, track down clues and make some startling discoveries as they work to keep Idaville in order. There are puzzling problems of missing property, sabotaged races, a frame-up involving the boy wonder himself, and even a case of unrequited love. And if you get stuck, you can turn to the back of the book to see how Encyclopedia solved the mystery. But don't peek until you're stumped!