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