The new thrilling instalment of John Connolly's popular Charlie Parker series. He is our best hope. He is our last hope.

On a lonely moor in the northeast of England, the body of a young woman is discovered near the site of a vanished church. In the south, a girl lies buried beneath a Saxon mound. To the southeast, the ruins of a priory hide a human skull.

Each is a sacrifice, a summons. And something in the shadows has heard the call. But another is coming: Parker the hunter, the avenger.

Parker's mission takes him from Maine to the...