It's 1516 and Scotland and England are teetering on the brink of yet another war.
So when a torso is found right on the border between the two countries, it threatens to create a bloodbath.
French diplomat, Antoine de Lissieu, is dragged in to investigate and reluctantly takes a band of men to the wild frontier region. But he's shunned by both sides of the divide and plagued by traumatic memories from his past.
As time runs out and the bodies mount up, can Antoine catch the culprits and prevent more carnage - or will his own demons catch up with him?
If you like C.J. Sansom, S.J. Parris and D.V. Bishop, you'll love this dark and twisty tale, set in a world of outlaws and warlords.