The Redeemer, Jo Nesbo, 2013

The Salvation Army in Oslo, a Croatian assassin, a child rapist, and a series of love triangles hurls this book towards a surprising climax.  A very cold winter, but Hole triumphs again.  His supporting cast undergoes some changes as there is a new superintendant for a boss and his partner, Halvarson is killed by the Redeemer.