To most people, demons look like regular citizens. But Gabrielle Cody has the ability to see these creatures as they really are-and the responsibility to destroy them. Hers is a special purpose, a divine obligation, and a heavy burden.

Detective Luther Cross finds himself attracted to Gaby even as he becomes suspicious of her proximity to a murder victim. Despite his mistrust, he tries to offer her a tenderness she's never experienced and doesn't dare accept.

For Gaby senses that another malevolent presence is watching her, stalking her. As desperately as she tries, Gaby cannot find the source of this menace. But again and again, she is drawn to an abandoned hospital surrounded by an aura of sickness and suffering and something more-an unimaginable evil.