Colter Shaw is the son of a survivalist, and uses the skills he was taught in childhood as a bounty hunter, tracking missing people for rewards. In this case he is tracking a scientist who has gone on the run with her young daughter, fleeing from her violent ex-husband who has just been released from prison. But of course there’s more to it than that, as Colter realises when he discovers a couple of hit-men are on the trail too…

This started out as a trilogy with an underlying story arc that was resolved in book 3. I’m glad he’s brought Colter back for a fourth outing, and without the background story this one stands alone, and is even more fast-paced since it has only one storyline to contend with. An excellent thriller.

NB This book was provided for review by the publisher, HarperCollins via NetGalley.