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

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

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

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