A boy, a plate of cookies, and a mystery that's full of crumbs... In this funny book in The Adventures of Leo series, Dad has just baked a batch of delicious, gooey chocolate chip cookies. But when one of them mysteriously disappears from the cooling rack, there's only one person for the job: Detective Leo! With his trusty magnifying glass and his even trustier detective hat, Leo sets out to find the cookie thief. A very silly and surprising investigation follows for our favorite detective. Who is the culprit? Is it Patches the cat? Or Buster the dog? - What is the most important clue that Detective Leo keeps missing? - Will he solve the case of the disappearing cookie before it's time for dinner? Discover the answers to these questions in this fun, easy-to-read story for three to seven-year-olds that celebrates solving mysteries and the importance of being honest. With its quirky illustrations, this fun storybook will amuse children and parents alike. Ideal as a bedtime story to read aloud to your child, or as an early reader for your child to read to you. Perfect for preschoolers and kindergarteners. Books in the Series can be read in any order.