Diana Arlyn is an author of gothic fiction best-sellers. A hard drinker with bipolar disorder, she falls in love with a mysterious woman, and the turbulent relationship draws Diana unwillingly into a legend.

Diana is haunted by questions: why did the woman pick her, of all people, and how can the Ta’ibah, the hunter of darkness, know so much about her? She is also haunted by the ghost of a dead author. She must find out what he wants, recover a lost book that belongs to someone who wants to kill her, and ultimately survive the darkness.