The Bad Guys, Mr. Wolf, Mr. Shark, Mr. Snake, and Mr. Piranha, want to be heroes, and they decide that the way to do it is free the 200 dogs in the city dog pound--but their plan soon goes awry.

The Bad Guys have strangely acquired SUPERPOWERS! But their powers might be, well, defective. They can only do things like blow their own pants off in public. Not exactly what you'd call hero-caliber skills. Defective or not, the Bad Guys have a job to do. With Marmalade ready to destroy the world, Mr. Wolf, Mr. Snake, Mr. Piranha, and Mr. Shark finally have their chance to be (super)heroes! And this time, they may just get some help...

"The Bad Guys have entered a whole new world--like, literally--a VERY nasty new universe awaits. Oh, Mr. Snake, what have you done...?"--Provided by publisher.

Still yearning to be seen as heroes, Wolf, Shark, Snake, and Piranha set out to rescue ten thousand chickens from a high-tech cage farm--but one unexpected problem is Mr. Snake himself, also known as "The Chicken Swallower."

It's a zombie kitten apocalypse! Can the Bad Guys save the world from evil Dr. Marmalade's meowing monsters?!? They'll need help from foxy Agent Fox, a swampy secret zombie antidote, and the feistiest, toothiest, hungriest granny around. Get ready to watch the fur fly!

Ricky Ricotta, a small mouse, is being bullied at school, but when he rescues a powerful robot from its evil creator, he acquires a friend and protector--and saves the city from Dr. Stinky.

Harold and George's time-traveling Purple Potty lands them in an alternate universe where everything seems delightful, but evil lurks just beneath the surface, and leads to a battle between Captain Underpants and his own evil twin.

In the aftermath of a war between gods and men, a hero, a librarian, and a girl must battle the fantastical elements of a mysterious city stripped of its name.

By flipping the pages, the reader may view animated illustrations that follow Ricky Ricotta, a small mouse, his giant flying robot, and his annoying cousin Lucy, as they battle the nightcrawlers from Neptune that are invading through a wormhole.

After his parents die, Jeffrey Lionel Magee's life becomes legendary, as he accomplishes athletic and other feats which awe his contemporaries.