Lydia must choose between the vampire Valentine and her boyfriend Marc. She knows that without her, Marc will soon stop being human. But her heart is drawn to Valentine, to the realm of the night.

 

When Lydia encounters a confused young man in the forest, she is both fearful and fascinated. His pale skin shimmers, his face and hands show signs of burning. He asks Lydia to help him. She takes the stranger home, but he disappears just a few hours later. Little does Lydia know that her fate is inextricably entwined with his - and that her blood makes her something very special.

Lydia and her beloved Jack Valentine help the Queen of Vampires to undo her mightiest enemy, Charles Solomon, who threatens to destroy peace between humans and vampires forever, and to seize the power over all creatures of the night. The key is a mysterious book - and Lydia's half-vampire blood, which can turn creatures of the night back into humans ...