World Without a Platypus is a junior novel that would have retold the events of "Where's Perry? Parts 1 and 2." It would have included an 8-page full-color insert of photos and was supposed to be released on July 31, 2012.
- The book was supposed to be released on July 31, 2012, but it was not released for unknown reasons.
This junior novel will retell the Phineas and Ferb two-part cliffhanger episode: World Without a Platypus, and includes an 8-page full-color insert of photos!
Phineas and Ferb: Across the 2nd Dimension