This offer includes 10 items (9 Books & CD): Captain Underpants #1-4 plus The Adventures of Super Diaper Baby;Ricky Ricotta's Giant Robot Series and Mecca Mars; Ook and Gluk...Titles include: Adventures of Captain Underpants, Captain Underpants and the Preposterous Plight of the Purple Potty People, Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 1, Captain Underpants and the Attack of the Talking Toilets, Captain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies, Captain Underpants and the Perilous Plot of Professor Poopypants, Captain Underpants and Wrath of the Wicked Wedgie Woman, All New Captain Underpants Extra-Crunchy Book O Fun 2, Adventures Of Super Diaper Baby, All New Captain Underpants Extra Crunchy Book O' Fun, Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 2 ; Ricky Ricotta's Giant Robot vs. the voo doo vultures from venus; Ricky Ricotta's Giant Robot vs. the mecca monkeys from Mars