Phineas and Ferb: Agent P’s Top-Secret Joke Book (A Book of Jokes and Riddles): Agent P's top secret joke book

Publisher Description

Dr. Doofenshmirtz is trying to destroy all of the laughter in the Tri-State Area with his latest evil invention--the De-Laugh-inator. It's up to Agent P to stop him, and the only way to defeat the evi...