At 17 years old, Mary Paige has become one of the most powerful creatures on the planet - a Blood Vivicanti. Scientifically recreated in an underground layer by Wyn (the first Blood Vivicanti and brilliant, billionaire engineer), Mary Paige discovers that her speed and strength have increased, but so has her appetite for blood. Drinking blood comes with a surprising side effect: Blood Memories. Mary Paige's photographic memory now remembers everything her victims remember. Her mind must balance these new memories while her heart awakens to the possibility of love when she encounters a third Blood Vivicanti - Theo.