Nathan is an outcast. He was labeled as a mutant, a mistake. Whoever bit him did something wrong, or at least something different. They call him the half. Half human, half vampire. One of a kind. Rosalie is idolized. Everyone wants to know her, to be friends with her, to stand in her presence. She's the only vampire in existence to earn the Mark of Resilience. One of a kind. Two one of a kinds. It almost seems perfect. It is perfect, until something from Rosalie's past fights its way back to her present, forcing Nathan and Rosalie to decide what's more important: their love or their lives?