Kristína Horková Book order (chronological)

1. George and Harold have thought up a comic book where Ms. Ribble turns into an evil, bionic-powered, wedgie-giving wacko. And now she's mad enough to flunk them out of fourth grade. Will Ms. Ribble's revenge ruin our heroes' hopes? 2. When Professor Pippy P. Poopypants comes to Jerome Horwitz Elementary School to teach science, and goes off the deep end because students make fun of his name, only Captain Underpants can save the school from the professor's perilous plot. 3. A snotty situation ensues when Melvin Sneedley, an academically gifted student, turns into the Bionic Booger Boy and must be stopped by George, Harold, and Captain Underpants. Suggested level: primary, intermediate.

Principal Krupp once again turns into the superhero Captain Underpants in order to save the world, and Jerome Horwitz Elementary School, from the evil talking toilets and the Turbo Toilet 2000.

George and Harold are having a normal kind of week. Yesterday they found out they were going to flunk fourth grade. Today they've created an evil, super-powerful monster. She's mean. She's got a fake-fur Evil Baddie costume - and she's having a really bad hair day. With the help of her robots, the Wicked Wedgie Woman is on a mission to take over the world ...and she'll give a whopping wedgie to anyone who stands in her way. Watch out.