THE CURSE OF THE BLOOD! A changed Cassandra Cain returns to gotham! Batgirl is back in Gotham City, but her Bat-Family reunion is cut short when she awakens with the twisted, metahuman abilities of the Blood--the power to wield and control her blood like a weapon. She is forced to ascend Wu Corp Tower to confront her Blood relatives for answers and a reversal of this curse. As ancient powers collide, Cassandra Cain must decide what kind of family she's willing to fight for. Additionally, a murder in Gotham's streets leads Batgirl to a crime scene with no discernible clues--only the words Forget-Me-Not. As the investigation unravels, Cassandra Cain discovers disturbing gaps in her own memory. With no leading suspect to fight and no answers on the streets, she must go inward to find the truth. Collects BATGIRL #17-22.