While alive, Kate, Claire, Rose, and Rachel each explored the streets of New York with the promise of limitless futures unfolding before them. But now, brought together as members of a blood-stained sisterhood, their once-delicate hands reach out to silence demonic beasts no ordinary weapon can destroy.Brutally murdered only to be resurrected as clandestine killers, the girls must stalk their prey with a primal ferocity – or risk losing what remains of their so-called lives. The only clues to their tragic past are a swarm of crimson butterflies and the mysterious woman who carries the harrowing secret behind the lives they lived – and the walking corpses they’ve become.