Carter is nineteen. Ever since her parents were brutally murdered, she has had to take care of her sister Marcy. But there's only one problem. The people who want to kill her? They're vampires. For centuries vampires have tracked Carter's kind. Hybrids. Her and her sister are all that's left of the hybrids. They are the most rare and powerful hybrids. They are bird hybrids who have wings, enhanced speed and strength, and some of their mind have special abilities. Marcy, for example, has the ability to levitate things and she has a fluid inside of her that can be used as a weapon, but she has to die in order to extract it. When Marcy gets kidnapped, Carter and her new friend Jonah must save her before she is sacrificed by the vampires.