Meyer adds an eerie new twist to the mismatched, star-crossed lovers theme: predator falls for prey, human falls for vampire. This tension strips away any pretense readers may have about the everyday teen romance novel, and kissing, touching, and talking take on an entirely new meaning when one small mistake could be life-threatening. Bella and Edward's struggle to make their relationship work becomes a struggle for survival, especially when vampires from an outside clan infiltrate the Cullen territory and head straight for her. As a result, the novel's danger-factor skyrockets as the excitement of secret love and hushed affection morphs into a terrifyin.