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 glasse

When Phineas and Ferb develop an indestructible exoskeleton to take on their extreme skate-track obstacle course, they inadvertently become a super hero known a

Phineas and Ferb want to get the most out of their summer by making every day outrageously fun, but these two best buds aren't content with going to the beach o

Phineas and Ferb need a tool that hasn’t been invented yet, so they hop in a time machine and head 20 years into the future! Unfortunately, they’re spotted

Everybody loves Perry's adorable "chittering" noise. But no one knows what it means. In this early reader, Phineas and Ferb decide to find out by building an an