Dr. Doofenshmirtz Finally Defeat Agent P? Watch out! Dr. Doofenshmirtz is dead set on defeating his platypus rival, Perry, aka Agent P, once and for all! Join the evil scientist in this hilarious chapter book that's packed with cool illustrations, crazy plots, wacky ideas, and devious diagrams. And most importantly, find out how he plans to conquer the tri-state area and finally defeat Agent P!