Batman: Reptilian

"Once this was Batman... But now something much scarier than a man in a batsuit is lurking in the shadows, hunting down the city's most notorious villains. Penguin, Scarecrow, Riddler – each of the known villains has been violently attacked...
The other criminals are hiding in corners, hoping for salvation. Batman is deaf to the moans of his enemies, yet he is not one to allow bloody chaos to reign in Gotham. Trying to find the culprit behind these events, the Dark Knight begins an investigation… But when the thread leads him to Killer Croc, the hero realizes he is confronted with one of the most bizarre cases of his life."