From back of book: Evan Delaney is shocked to learn that her ex-sister-in-law Tabitha has joined the Remnant, a religioun with a dangerous and fanatical following. More alarming is that the unstable young mother plans to regain custody of her son and disappear with him into the fold of the church. She has the Remnant on her side. To get what they want, they'll do anything it takes--including murder. But it's one of the Remnant who's killed, and when Evan's brother is suspected of the crime, Evan is dragged even deeper into the nightmare.

(Source: Signet)