Paris, 1307. The Knights Templar have been destroyed by Pope Clement, having been persuaded by a jealous king that they are corrupt devil worshippers. There is one survivor – a knight who swears vengeance.

Devon, 1316. A charred body is discovered in a burned-out cottage, and newly appointed Bailiff, Simon Puttock, believes it to be accidental. Until the new master of the local manor, Sir Baldwin Furnshill, deduces that they were dead before the fire began.

With the assistance of the astute yet strangely reticent knight, Simon begins to piece together the events of the man’s last days. Then word comes of another, far more sinister murder – for in this case, the victim was undoubtedly burned alive. Are the two incidents connected, and will the killer strike again?