Harold and George's time-traveling Purple Potty lands them in an alternate universe where everything seems delightful, but evil lurks just beneath the surface, and leads to a battle between Captain Underpants and his own evil twin.

George, Harold, Captain Underpants, and Sulu the bionic hamster battle the three ridiculous Robo-Boogers in an attempt to turn the Bionic Booger Boy back into Melvin Sneedly.

"Eight-year-old Sophie Mouse is excited to return to school after the long winter break, but there is a new student--a snake--and Sophie and the other animals are afraid to sit near him, much less ask him to play with them, because they have heard snakes are awful"--Provided by publisher.

"Leon is an ordinary kid who becomes extraordinary when he fights a supervillain to save his school! In the city where Leon lives, superheroes--and supervillains--are commonplace. So how does an ordinary kid like Leon, who has no superpowers himself, become the superhero he wants to be? When all his classmates suddenly become obsessed with a new phone app that turns them into zombies, Leon gets his chance to prove that using his brain and following...

"Skade, the goddess of skiing, is known as one of the best athletes--and a top student--at Asgard Academy. But lately, she's been in a slump. When three giants appear and offer to mend the rift between the worlds by organizing a big ski competition, Skade feels like this is her chance to prove herself again. But much to Skade's embarrassment she's named an alternate instead of a member of the starting team. Aside from Skade's disappointment, something...