It's About Time! (book)

It's About Time is a upcoming book that will be released on February 8, 2011. It is based off the episode of the same name.

A tricky time machine turns an ordinary day of summer vacation into a struggle for survival when Phineas, Ferb, and Candace end up in the Jurassic period! The kids must avoid being trampled by Tyrannosaurus rexes and find a way to make it back to their own time, before mom and dad find out! Meanwhile, Perry the Platypus discovers that Dr. Doofenshmirtz has a brand-new nemesis--Peter the Panda!

http://www.amazon.com/Phineas-Ferb-Comic-Reader-About/dp/1423137388/ref=sr_1_15?ie=UTF8&s=books&qid=1277926272&sr=1-15