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.

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!

The heroes receive dire news: prior to their original capture, Core Hunter, Voltix, XT4, and Thornaxx stole four components of what is said to be a devastating super-weapon called "The Doom Box." This device grows larger on activation, encompassing anything in its path, then collapses in on itself--a serious danger enough--but the box is capable of growing to the size of an entire galaxy! Now that the villains have escaped, they are believed to be...

When George and Harold hypnotize their principal into thinking that he is the superhero Captain Underpants, he leads them to the lair of the nefarious Dr. Diaper, where they must defeat his evil robot henchmen.

"Doggo likes routine: napping, eating, and more napping. Life is good. Life is good for Pupper, too, even though he worries a lot, about things like giant squirrels. If he were braver, he might even be a hero. Maybe even a hero who can fly! But heroes aren't afraid of giant squirrels ... When Doggo and Pupper meet a baby bird who also has worries, they are determined to help. Doggo and Pupper may not know how to fly, but they are very good helpers....

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.

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?

"OK. A lot of the stuff we said on the back of the last book was NOT TRUE. We now admit that The Bad Guys is WEIRD. We also admit that it features ALL the weird stuff we said it didn't. PLUS there's now a whole bunch of even weirder stuff involving an over-sharing bat, a really scary new character who lives in the woods, and a strangely confident little guy with a mullet. So, uh, don't relax, maybe FREAK OUT a little and have your MIND BLOWN by the...

"In his penultimate adventure, a devastated but determined Apollo travels to Camp Jupiter, where he must learn what it is to be a hero, or die trying"-- Provided by publisher.

Details Wonder Woman's childhood as a warrior princess on a secret, faraway island, and describes why she decides to leave the Amazons and help save the world.