Fear the darkness

"Retired FBI agent Brigid Quinn knows how difficult it can be to overcome one's past. But she is nothing if not a fighter. Even when the return of a serial killer from her past threatened to derail her new marriage, she managed to hold on to the life she's been trying to build in Tucson with her husband, Carlo. At first, the new challenges in her life seem pretty mundane compared to a serial killer. After her sister-in-law dies, Brigid's nineteen-year-old niece Gemma Kate comes to live with her and Carlo, to establish Arizona residency before starting college. Brigid doesn't exactly love the…