Seattle has been invaded by covens of Rogue Vampires - vampires who hunt and prey upon other vampires. Bella and the Cullen siblings are in Seattle for a rare night out on the town. They are attacked by Rogues, and Alice Cullen is lost in the ambush. The family fears the worse, believing that Alice is dead.
Alice awakens with no memory of who she is, where she is or how she came to be there. She also has no clue that's she's fallen into the hands of an old enemy to her kind. A half-vampire who once waged a 50-year long war of vengeance against all vampires.
A enemy so vicious that the Volturi had dubbed him with the name, "Lucifer", and who was long since believed to be dead himself.