Tana French

"It's a blazing summer when two men arrive in a small village in the West of Ireland. One of them is coming home. Both of them are coming to get rich. One of them is coming to die. Cal Hooper took early retirement from Chicago PD and moved to rural Ireland looking for peace. He's found it, more or less: he's built a relationship with a local woman, Lena, and he's gradually turning Trey Reddy from a half-feral teenager into a good kid going good places....