The Keeper - Tana French

On a cold night in the remote Irish village of Ardnakelty, a girl goes missing. Sweet, loving Rachel Holohan was about to be engaged to the son of the local big shot. Instead, she’s dead in the river. In a close-knit small town, a death like this isn’t simple. It comes wrapped in generations-old grudges and power struggles, and it splits the townland in two. Retired Chicago detective Cal Hooper has friends here now, and he owes them loyalty, but his fiancée Lena wants nothing to do with Ardnakel