Greenburg, Dan

Superhero Maximum Boy tries to save the Earth from pitchfork-carrying alien cows.

Maximum Boy and Girl set off for outer space to send the Worst Bully in the Entire Universe, an unrepentant prankster, to another galaxy.

When the Water People swim up from the bottom of the sea to take over the world, it is up to Maximum Boy to defend the Earth from the evil creatures.

Superhero Maximum Boy is left with a mystery on his hands when an imposter steals four of the world's most valuable treasures.

Maximum Boy, an eleven-year-old superhero, finds himself with a rival when Super Sid, Crime-fighting Kid, appears on the scene.

Superhero, eleven-year-old Max Silver, must stop the evil Tastemaker from giving the world indigestion.

When the babies who are being fed on human snot mutate into half-human brats, Hedy Mandible uses her hypnotic control over Cheyenne to force her to teach them proper behavior, while the Jackal initiates another elaborate scheme to assassinate Wally.

Fourteen-year-old Cody trades one dangerous situation for another when he runs away from his abusive mother and takes a job caring for lions and tigers on a Texas ranch where one of the owners has supposedly gone missing.

Zack and his father go to Hawaii where Zack has an unfortunate encounter with an angry volcano goddess.

When Zack goes to a store to buy a baseball card, he finds himself face-to-face with his future son who has traveled back in time.