The Burial Place by Stig Abell

Description

A group of archaeologists, uncovering the remains of a Roman settlement on a beautiful hill in the glorious English countryside, have their idyll shattered when they begin receiving threatening letters. Former city detective Jake Jackson, now enjoying a quieter life in the local village, is pulled in to investigate.
Soon, threatening letters are the least of their problems, when a murderer strikes and the race is on for Jake to find them, before they kill again…  578pp

The third Jake Jackson mystery.