Contents: The adventures of Captain Underpants. Originally. published: London: Scholastic, 2000; U.S.: Scholastic, 1997 - Captain Underpants and the attack of the talking toilets. Originally published: London: Hippo, 2000 - Captain Underpants and the invasion of the incredibly naughty cafeteria ladies from outer space. Originally published: London: Scholastic, 2000; U.S.: Scholastic, 1999. - Formerly CIP