"Follow along with the story as Perry the Platypus has to sneak away from Phineas and Ferb so he can fight his 100th battle with the evil Dr. Doofenshmirtz. The CD includes word-for-word narration, character voices, sound effects, and a bonus song"--P. [4] of cover of accompanying book.

Compact disc. "Read-along storybook and CD"--Label. Accompanying book adapted by Ellie O'Ryan ; based on the series created by Dan Povenmire and Jeff "Swampy" Marsh.