Batman #608 by Jeph Loeb

Hush, Chapter One The Riddle

A child’s kidnapping by Killer Croc sparks a relentless chase through Gotham’s sewers and rooftops, culminating in the child’s rescue as Catwoman escapes with the ransom—apparently acting on someone else’s orders. While pursuing her, the vigilante’s line is cut by an unseen assailant, sending him crashing to the street and leaving him gravely injured. With multiple foes seemingly manipulated from the shadows, he senses a larger conspiracy taking aim at him.