Mr. Mxyzptlk, a mischievous imp from the Fifth Dimension, is on the loose in Metropolis, and causing mayhem with his tricks--so it is up to Superman to find a way to reverse the magic and send Mxy back where he belongs.

The Cosmic Annihilator, a weapon capable of destroying entire planets, is missing, and it is up to Batman to defeat his enemies and recover it.

"Learn how Tony Stark became the super hero known as Iron Man."--The publisher.

When the goat pasture is plagued with a foul stench, the Princess in Black and her friends must take on a stinky beast.

The monstrous Turbo Toilet 2000 is determined to take revenge on George, Harold, and Captain Underpants.

An alien ship sets up a screen to filter the sun's rays from reaching the earth, causing Superman's sunlight-driven strength to begin to drain away.

Introduces the high-flying superheroine as she arrives on Earth to join her cousin Superman and the Super Friends to stop villains.

Percy the Pug and Petunia the pig are the very best of pals . . . until Petunia wins a blue ribbon at the county fair. Suddenly, she has no time for hide-and-seek or lapping puddles, cheek-to-cheek. But when Percy finds a faded comic book in a puddle, the lonely pug dons a cape and takes on a new persona: THUNDER PUG! Even though being a superhero is exciting, Percy knows he's missing something. Only when "Pink Lightning" (aka Petunia) joins him,...

Captain Awesome (otherwise known as Eugene McGillicudy) faces his latest challenge--making it through Valentine's Day at school while trying to find out the identity of his secret admirer.