
Written & illustrated by Dav Pilkey
Book #10 in the Captain Underpants series
Two fourth-grade pranksters accidentally travel back in time and must find a way to return to their own time.
George and Harold face a dire future as evil zombie nerds on a ruined planet. With Captain Underpants erased from existence by Tippy Tinkletrousers' time-traveling chaos, they must restore history to save themselves. Can they outsmart time and bring back their hero, or is the world doomed forever?
When we last saw our heroes, George and Harold, they had been turned into evil zombie nerds doomed to roam a devastated, postapocalyptic planet for all eternity. But why, you might ask, didn’t the amazing Captain Underpants save the boys from this frightening fate? Because Tippy Tinkletrousers and his time-traveling hijinks prevented George and Harold from creating Captain Underpants in the first place! Now, having changed the course of human history forever, they’ll have to figure out a way to CHANGE IT BACK!
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