The Joker has transformed ordinary citizens of Gotham City into laughing accomplices, and the reader must help Batman choose how to defeat his rapidly multiplying enemies.

Killer Croc climbs out of the sewers . . . with an army of reptile warriors! Batman and Robin are hot on their lizard-like tails. Can the Dynamic Duo stop their reptile raid, or will these slimy supervillains give the heroes the slip? Find out in this action-packed early chapter book for the youngest of readers.

Pamela Isley, who dreams of becoming a botanist, is tricked into an experiment designed to turn her into half-plant, half-human, but the procedure goes horribly wrong and she instead develops superpowers that transform her into Poison Ivy, Batman's enemy.

Batman and Robin team up to stop Gotham City's coldest criminal: Mr. Freeze! He's on a cold-hearted crime wave in a new, high-tech suit. Can the Dynamic Duo catch this supervillain before the case goes cold, or will he slip through their hands like ice? Find out in this action-packed early chapter book for the youngest of readers.

Wonder Woman recognizes that the Beastiamorphs overrunning the island of Valdonia are creations of her old enemy, Circe, so she sets out to deal with the threat; but she finds that the petulant king wants Superman, Circe has disguised herself, and the only clue is a strange, pea-sized stone hidden under a tower of mattresses on Wonder Woman's bed--and she has to untangle Circe's spell, defeat the sorceress, and prove to the king that she is a real...

"Poison Ivy wants to protect the plants in Gotham City Park from climate change. Although that may sound like a noble plan, her solution actually seals off the entire park inside a giant, plant-based dome! With helpless citizens trapped inside, it's up to Batgirl to fight through the villain's fearsome flora"--

Can the Girl of Steel keep a dangerous shipment of Kryptonite out of the clutches of the superpowered cyborg Metallo and save Metropolis from destruction at the same time?

"Aquaman's underwater kingdom is facing a medical threat. Luckily, a sea witch offers him a rare plant to fight the sickness . . . in exchange for a hefty price. But the Sea King soon discovers she isn't just greedy. The old woman has locked the true crop owner in an enchanted coral tower! What's worse, the trapped mermaid thinks she's being protected not imprisoned, so her living seaweed hair is ready to fight off any stranger who climbs inside....