Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy Part 2: The Revenge of the Ridiculous Robo-Boogers (Captain Underpants #7)

Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 1: The Night of the Nasty Nostril Nuggets (Captain Underpants #6)

Captain Underpants and the Preposterous Plight of the Purple Potty People (Captain Underpants #8)

Captain Underpants and the Terrifying Return of Tippy Tinkletrousers (Captain Underpants #9)

Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers (Captain Underpants #10)

Captain Underpants and the Wrath of the Wicked Wedgie Women (Captain Underpants #5)

Captain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000 (Captain Underpants #11)

Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot (Captain Underpants #12)

Captain Underpants and the Perilous Plot of Professor Poopypants (Captain Underpants #4)

Captain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies from Outer Space (Captain Underpants #3)

Captain Underpants and the Attack of the Talking Toilets (Captain Underpants #2)