The seventh book in Dav Pilkey's mega-bestselling Captain Underpants series. Now with super-cool foil covers! Shiny! Fun! Just when they thought they were out, it pulls them back in! Our heroes beat the Bionic Booger Boy, but they forgot about those rascally Robo-Boogers. Join George, Harold, Mr. Krupp, Melvin Sneedly, and Sulu the Bionic Hamster on an adventure that will take them into the …
Join George, Harold, Mr. Krupp, Melvin Sneedly, and Sulu the Bionic Hamster on an adventure that will take them into the deepest regions of outer space and back through time to the mysterious and uncharted world of the day before yesterday!'
George and Harold are usually responsible kids...whenever anything bad happens, George and Harold are usually responsible! And it looks like they're up to their old tricks again! First, they ruined the school's science fair with a series of silly pranks. Then, they accidentally created an army of evil, vicious, talking toilets, intent on taking over the world. Who will stop the carnivorous comm…
George and Harold are in a sticky situation. Their latest prank has snotty school brainiac Melvin Sneedly seeing red, and he can't wait to get them back. But when Melvin tries to transform himself into a bionic-powered superboy, things get a little gloppy - and the Bionic Booger Boy is born! Can Captain Underpants beat this blobby behemoth of blech, or is the entire world doomed to drown in dis…