Captain Underpants and the Terrifying Return of Tippy Tinkletrousers

George and Harold encounter a familiar face – Professor Poopypants! He now goes by the name Tippy Tinkletrousers and is determined to seek revenge for all of the teasing his old name inspired. Armed with his laser-shooting Freezy-Beam 4000, Tippy Tinkletrousers is ready to zap anyone who stands in his way. Now it’s up to George, Harold, and the amazing Captain Underpants to stop Tippy Tinkletrousers’s reign of terror before it’s too late!

All Captain Underpants books by Dav Pilkey in order:

1. The Adventures of Captain Underpants
2. Captain Underpants and the Attack of the Talking Toilets
3. Captain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies from Outer Space
4. Captain Underpants and the Perilous Plot of Professor Poopypants
5. Captain Underpants and the Wrath of the Wicked Wedgie Woman
6. Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy Part 1: The Night of the Nasty Nostril Nuggets
7. Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy Part 2: The Revenge of the Ridiculous Robo-Boogers
8. Captain Underpants and the Preposterous Plight of the Purple Potty People
9. Captain Underpants and the Terrifying Return of Tippy Tinkletrousers
10. Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers
11. Captain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000
12. Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot

And don’t miss out on theses as well:

1. The Adventures of Super Diaper Baby
2. The Adventures of Ook and Gluk, Kung-Fu Cavemen from the Future
3. Super Diaper Baby 2: The Invasion of the Potty Snatchers