Captain Underpants Children Collection 10 Books Set. Books include: - The Adventures of Captain Underpants - Captain Underpants and The Attack of the Talking Toilets3 - Captain Underpants and The Invasion of the Incredibly Naughty Cafeteria Ladies from Outer Space - Captain Underpants and The Perilous Plot of Professor Poopypants - Captain Underpants and The Wrath of the Wicked Wedgie Woman - Captain Underpants and The Big, Bad Battle of the Bionic Booger Boy Part 1 - Captain Underpants and The Big, Bad Battle of the Bionic Booger Boy Part 2 - Captain Underpants and The Preposterous Plight of the Purple Potty People - Captain Underpants and The Terrifying Return of Tippy Tinkle Trousers - Captain Underpants and The Revolting Revenge of the Radioactive Robo-Boxers What's in the box 10 x books