New Mexico Territory, 1882: She comes to the Klein ranch at sunset, a strange naked pregnant woman dragging a cavalry saber. Annette Klein and her husband have built peace between their marriage and secret relations beyond, but their serenity dies in bloodshed tonight through a cannibalistic demon and a mad preacher. Annette barely escapes the bloodbath to the nearby town of Low's Bend, where she might find safety with a shotgun-toting barkeep, two no-nonsense boarding room ladies, and the gunslinging bounty hunter who's captured Annette's heart. But hell is at her heels. If she's going to survive until dawn, she'll have to forget everything she knows about peace and mercy, and face a hollow malevolence more ancient and ruthless than she's ever imagined.