When we last saw our heroes, George and Harold, they had been turned into evil zombie nerds doomed to roam a devastated, post-apocalyptic planet for all eternity. But why, you might ask, didn't the amazing Captain Underpants save the boys from this frightening fate? Because Tippy Tinkletrousers and his time-travelling hijinks prevented George and Harold from creating Captain Underpants in the first place! Now, having changed the course of human history...

"Who says princesses don't wear black? When trouble raises its blue monster head, Princess Magnolia ditches her flouncy dresses and becomes the Princess in Black!" --

"A brand-new graphic novel series by Dav Pilkey, the internationally bestselling author and illustrator of the Dog Man and Captain Underpants series. In Cat Kid Comic Club, Li'l Petey, Flippy, and Molly introduce twenty-one rambunctious, funny, and talented baby frogs to the art of comic making. As the story unwinds with mishaps and hilarity, readers get to see the progress, mistakes, and improvements that come with practice and persistence."--Provided...

Only Captain Underpants can stop the three evil space aliens who have invaded Jerome Horwitz Elementary School and turned everyone into lunchroom zombie nerds.

When a new sitter arrives and a movie star goes missing, Dog Man and Cat Kid investigate, but Petey, the world's most evil cat, complicates their case.

When Harold and George turn fourth-grade teacher Ms. Ribble into the evil Wedgie Woman, she gives the wedgie of doom to unsuspecting people who stand in her way--including principal-turned-superhero Captain Underpants.

"George and Harold are behind bars for a crime they didn't commit! But just as they are settling into their new life, they are pulled from prison by a time-traveling tyrant named Tippy Tinkletrousers! Now the boys are taking a trip back in time to the carefree days of kindergarten, when the scariest thing they had to face was not evil mad scientists or alien cafeteria ladies but a sixth-grade bully named Kipper Krupp, the nephew of their clueless...

George and Harold, and their doubles, Yesterday George and Yesterday Harold, have a good thing going. Two of them go to school, while the other two hide in the tree house and play video games all day--then they switch! But when their malicious gym teacher, Mr. Meaner, creates a method of mind control that turns their fellow students into attentive, obedient, perfect children, the future of all humanity will be in their hands!

When a goo monster crashes the science fair, the Princess in Black is on the job, and with the help of the Princess in Blankets, sets out to save the science fair.

"Snow covers the kingdom, making it a perfect day for the Princess in Black and her friends to build snow monsters--until a huge foot smashes the monsters and everything else in its path. SQUASHY! Could a stomping giant be the biggest problem yet for the Princess in Black?"--Back cover.