Bill Finger

"Harley Quinn and Poison Ivy escape from Arkham Asylum and head back to Ivy's hideout; however, Harley proves to be a demanding roommate, so Ivy helps her take over a carnival and even grows her plant versions of Batman and Robin to boss around--but when Poison Ivy feels she has done enough and withdraws from the field, Harley discovers that being a criminal boss is a lot more difficult than she imagined."--

"Harley has her own reality TV show with a film crew following her around taping her doing fake robberies, and Batgirl finds herself as a suspicious and unwilling co-star--but when the film crew turns out to be a pack of thieves using Harley, the angry burglar teams up with the skeptical crime fighter to catch the villains."--

"When an ancient Greek crypt at the Gotham City Museum of Natural History is opened unleashing mythological monsters, the Mystery Inc. gang team up with Batman and Batwoman to battle the creatures and uncover the super-criminal behind the mayhem."--

"When Scooby-Doo and the rest of Mystery Inc. are trapped in Gotham City's new monument to Rizzo the Clown, Batman comes to the rescue to help them find the creepy culprit."--

"The Riddler has arrived in Gotham and he's terrorising the city with his own twisted brand of anarchy. But why is he attacking now, and what is his endgame? The Riddler isn't Batman's only problem, as Killer Croc is on the streets and his violent crimes can't be ignored. Meanwhile, the Dark Knight has trouble reconciling the increasingly conflicting ideologies of Alfred Pennyworth and James Gordon in this gripping re-imagining of the Batman mythology....

How did the Joker become Batman's archenemy? Discover the story behind the Clown Prince of Crime's journey from small-time crook to big-time baddie, including the source of his crazy clown face.

"Fearing the actions of Superman are being left unchecked, Batman takes him on, while the world wrestles with what kind of a hero it really needs. With Batman and Superman fighting each other, a new threat, Doomsday, is created by Lex Luthor. It's up to Superman and Batman to set aside their differences, along with Wonder Woman, to stop Lex Luthor and Doomsday from destroying Metropolis"--

"Fueled by his restored faith in humanity and inspired by Superman's selfless act, Bruce Wayne enlists the help of his newfound ally, Diana Prince, to face an even greater enemy. Together, Batman and Wonder Woman work quickly to find and recruit a team of metahumans to stand against this newly awakened threat. But despite the formation of this unprecedented league of heroes it may already be too late to save the planet form an assault of catastrophic...