Thrill as Perry the Platypus faces his most dangerous nemesis yet - the rogue rabbit known only as...Dennis! As Phineas and Ferb create their own X-Ray glasses, Agent P must bring the bad bunny to justice. And what happens when the boys wake up to find that Perry is gone...maybe forever??? Find out in this early comic reader packed with over 300 eye-popping images straight from the show!
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