Kim Possible: Pick a Villain!: Masters of Mayhem is the third Pick Your Own Adventure-style Kim Possible book.
She can do anything-and you can help her! Masters of Mayhem: Four of the world's most creative villains are arguing about who is the baddest bad guy of all. To prove their cases, each of the villains agrees to a test. The winner will be worthy of the title "Master of Mayhem." Can you help Kim Possible and her friends save the world from these vile villains before one of them actually wins the title? It's a Kim Possible adventure where you make the choices-win or lose!