When Professor Pippy P. Poopypants comes to Jerome Horwitz Elementary School to teach science, and he 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.

Aided by old friends and new, Owen and Bethany try to bring the light back to Jupiter City, a comic book world where they discover a link between the Dark and Bethany's father.

Wheaton, Kansas seventh-grader Tucker MacBean loves comic books, so when his favorite comic has a contest to create a sidekick, he is hopeful that he can win, thereby fixing his struggling family.

Impressed by his first case, Principal Links asks fourth-grade detective Jon Gummyshoes to find out who is selling fake comic books to the students, but Jon is not going to like where his investigation leads him.

Michael Malone's assigned to investigate a local comic shop by the mysterious UNICORNE agency because they're displaying a comic book with a disturbingly familiar heroine--but he soon realizes that the sinister shop hides an invisible army come to life, with a menacing maniac at its head--and worse, he doesn't know if he can trust his fellow agents.

Mason Brady loves comics! He knows every hero, villain, and sidekick. He even draws his own characters. On a trip to his favorite place, the Comic Book Characters Hall of Fame Museum, Mason explores every exhibit. He even comes across the very real Night Howler. But when villains start terrorizing the town, Mason realizes that his whole life is about to change. Will Mason be a superhero or will he just be a superzero?

Seventeen-year-old Denise Farber, her mom, and her stepfather are moving back to New Orleans, into the Argonne house, which is over 100 years old, and really showing its age, but which her mother plans to turn into a bed-and-breakfast--but old houses have histories, and sometimes ghosts, and a mysterious old comic book that Denise finds in the attic may hold the answer to a crime and the terrifying things that keep happening in what she thinks of...

Robby's comic book creation Dr. Maniac comes to life and traps seven kids in Horrorland.