What strikes fear into the hearts of those who terrorize Gotham? It used to be Batman, but something far more frightening stalks the shadows-and it’s after Gotham’s villains, leaving a trail of carnage through the underworld. Now, with Riddler, Penguin, Two-Face, and many more left bloodied and broken in its wake, Batman opens the case on this mysterious reptilian menace and finds himself vexed by one very important question: What on Earth is it? Collects Batman: Reptilian #1-6.

After following a trail of carnage, Batman has finally come face-to-face with the reptilian that's been menacing Gotham’s underworld. And this horrific creature only wants one thing: its mother. But who is its mother? Pick up this penultimate chapter to find out the impossible answer to that question!

What strikes fear into the hearts of those who terrorize Gotham? It used to be Batman, but something far more frightening than a mere man stalks the shadows-and it’s after Gotham’s villains. How savage must a monster be to haunt the dreams of monsters? Pick up this dark and bone-chilling tale by comics legends Garth Ennis and Liam Sharp to find out!

Batman and Killer Croc face off against Croc’s murderous offspring in a finale that has to be seen to be believed. The World’s Greatest Detective closes the world’s strangest case in the final issue of Garth Ennis and Liam Sharp’s twisted tale.

The monster-revealed! Trailing behind the mysterious reptilian menace savaging Gotham, Batman hits the streets hard searching for answers but finds only more questions. The Dark Knight takes his search beneath the streets and into the sewers to seek out Killer Croc. But when he finds the reptilian rogue, he quickly realizes that this may be the strangest case of his career.

Red Hood: Meet Cheer, the villain behind the insidious Cheerdrops altering the citizens of Gotham. When confronted with a man responsible for taking the lives of so many, including Tyler, the kid Jason Todd swore to protect, will Red Hood be able to stop himself from taking vengeance for a whole city? Grifter: Through four chapters of blood, bullets, and Batman, the true reason for Cole Cash emerging in Gotham City reveals itself at last…but it’s not what you think! Tim Drake: Tim is determined to find his friend Bernard, who was taken by a Chaos Monster before his very eyes. But this case is different from any Tim has taken on before, and the cracks are starting to show. Batgirls: Cassandra Cain and Stephanie Brown are just two teenagers breaking into Wayne Manor so they can play some video games. But when Oracle gives them a mission, the Batgirls suit up and head to an abandoned arcade to investigate.Red Hood: Meet Cheer, the villain behind the insidious Cheerdrops altering the citizens of Gotham. When confronted with a man responsible for taking the lives of so many, including Tyler, the kid Jason Todd swore to protect, will Red Hood be able to stop himself from taking vengeance for a whole city? Grifter: Through four chapters of blood, bullets, and Batman, the true reason for Cole Cash emerging in Gotham City reveals itself at last…but it’s not what you think! Tim Drake: Tim is determined to find his friend Bernard, who was taken by a Chaos Monster before his very eyes. But this case is different from any Tim has taken on before, and the cracks are starting to show. Batgirls: Cassandra Cain and Stephanie Brown are just two teenagers breaking into Wayne Manor so they can play some video games. But when Oracle gives them a mission, the Batgirls suit up and head to an abandoned arcade to investigate.

Batman hits the streets in search of the creature terrorizing Gotham’s underworld-and hits them hard. First stop is the lair of the Penguin, but Oswald Cobblepot is at death’s door (which is better off than the beast left many of his cronies). The mangled rogue has no answers for Batman, but his blood-and the surprising secrets that it holds-will send the vigilante ever deeper into darkness...Batman hits the streets in search of the creature terrorizing Gotham’s underworld-and hits them hard. First stop is the lair of the Penguin, but Oswald Cobblepot is at death’s door (which is better off than the beast left many of his cronies). The mangled rogue has no answers for Batman, but his blood-and the surprising secrets that it holds-will send the vigilante ever deeper into darkness...