The death toll begins to escalate as the assassin murders other monks in the monastery and Hugh Corbett, Ranulf and Chanson investigate the killings whilst fending off threats to their own lives.
Doherty is able to create a creepy, cold and haunting atmosphere throughout the medieval mystery, with rumours of Sir Geoffrey Mandeville's ghost galloping through the fens and corpse candles glowing out in the marshes, which forewarn men of their own deaths.
Hugh Corbett arrives at the truth at the end, and all is revealed in the manner typical in this series. I enjoyed the character 'Brother Dunstan' the Treasurer for obvious reasons, and this was a good mystery. I'm slowly making my way to the end of the series, with this being the 13th in the series with 3 to go.
My rating = ***