Part 1 of a 3-part story introducing a new villainess: Orca! Like the killer whale that is her namesake, 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, and now Batman must face the unpleasant task of thwarting her plans for obtaining the gem in defense of a woman who is little more than a high-society-sanctioned slumlord.