Bury Them Deep

The further into this series I delve, the more I love it. When Tony McLean is involved in an investigation, you can count on it being anything but straightforward.
Bury Them Deep is no exception. It begins with the legend of Sawney Bean. As soon as I read that I knew I'd be going down the proverbial rabbit hole. I wasn't disappointed.
What starts off as a routine investigation into the disappearance of a member of CID's admin staff, soon leads to the discovery of human bones, a lot of human bones, and the existence of a cult of cannibals.
Other, seedier practices, are investigated, and someone from McLean's past makes an unwelcome return.
Darkly thrilling, slightly unsavoury but 100% satisfying.