"Batman has been kidnapped by the Riddler! The crook has left behind one of his infamous riddles, addressed to Robin. If Robin can solve the puzzle, he will locate the Caped Crusader, but that first riddle leads to another. Then the Riddler turns off all the lights in Gotham City. What, Robin wonders, is the point? When will the riddles end? If the Boy Wonder cannot find his partner by the next sunrise, Batman will be gone forever"--P. [4] of cover....

Batman must quickly round up Gotham's greatest super-villains after they escape from Arkham Asylum, so gets some extra help from the alien imp Bat-Mite.

"When animals and people begin to disappear in one of Gotham City's parks, Batman suspects that the deadly Poison Ivy and her creepy plants are at work. But the green villainess is locked behind bars"--P. [4] of cover.

"Christmas dreams become nightmares when toys turn deadly. Tiny helicopters attack holiday shoppers. Cannons shoot out rubber duckies. Even a bouncing soccer ball is transformed into a deadly weapon. Superman must save Lois Lane and a group of children trapped on a runaway holiday parade float. But when the float moves inside a giant tunnel made of lead, even Superman's super-vision cannot find the victims. Only one person can be behind all the mayhem--the...

The distant planet Krypton faces total destruction. Before it explodes, the scientist Jor-El and his wife Lara send their only son into outer space. Later, the child's rocket crashes into a Kansas cornfield where a farmer and his wife discover the boy and his strange powers.

"Daily Planet reporters Clark Kent and Lois Lane are covering the opening of the new Metropolis Museum when, suddenly, a gigantic skeleton of a blue whale comes to life. With lightning-speed, Superman catches the colossal creature, but the magical mischief is far from over. The impish Mr. Mxyzptlk has returned from the Fifth Dimension with dozens of troublesome tricks. Even the Man of Steel is helpless against his power of magic"--P. [4] of cover....

"While researching the Arctic for a school project, Robin discovers that something is heating the glaciers--and it's not just global warming. With Batman's help, Robin discovers that the evil Rā's al Ghūl is behind the environmental disruption. The Dynamic Duo head to the Arctic to stop his evil plan and prevent an ecological disaster"--Unedited summary from book.

Superman has his hands full. First, he encounters his cousin, Supergirl, a reckless teenager with powers like his own. Then he confronts a creature known as Parasite, who can absorb Superman's strength and super-speed just by touching him. Superman knows enough to not shake hands with the deadly fiend, but Supergirl is still learning the ropes. Filled with her power, the Parasite now battles the Man of Steel in a fight that rocks the planet. How can...

Superman is the target of Lex Luthor's deadliest scheme. The cruel genius has poisoned criminal John Corbin. He withholds the antidote until Corbin makes a promise: he will let Luthor turn him into a robot powered by kryptonite. But once the creature named Metallo discovers that he is more machine than human, revenge fills his strange heart.

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.