Five kids and their alien friend Ax can change into any animal that they touch, which is a good thing given that they’re the only ones standing between the Yeerks and the conquest of all mankind.

Tim liked the Animorphs even more than their earlier cousin, the Goosebumps books, and I agree. But I asked him recently why the books needed to introduce time travel. Weren’t there enough fantastical elements already? But he pointed out that without time travel, Jake, Marco, Cassie, Rachel, Tobias and Ax couldn’t turn into dinosaurs.