Not sure when I read blacklands, but the 3rd in this trilogy brings many threads in the 1st 2 bks abt an exmoor village together. When children are snatched from vehicles with a post it saying you don't love him left behind, the investigation bring Jonas Holly (bk 2 police officer whose wife is murdered) and Stephen (bk 1 boy who interacts with an imprisoned killer) into close tense connection. A really taut narrative, great characters, + plot.