Marty Volk has a guardian angel. For the past five years, since he was twelve years old, it has saved Marty whenever he’s been in danger. And from a single darkened glimpse one night on the streets of London, he thinks it’s his long-lost sister Rose—ten years older than him, beautiful, intelligent… and deceased. For Rose has become a creature of legend that thrives, along with her undead companions, in the shadows of the human world… one who tenaciously holds on to her new existence, and who will do anything to survive…