Batman #579 (1940-2011) (NOOK Comics with Zoom View)

"Orca" part 1! Orca is a deadly denizen of the deep, and she's surfaced in Gotham Harbor to snatch a fabulous diamond known as the Flame of Persia from around the neck of a billionaire heiress. But Orca's motives for the theft are purer than they might seem.