Ralph Delchard, a former soldier in the infamous Battle of Hastings, and Gervase Bret, a gifted lawyer, continue to investigate discrepancies raised during the gathering of information for the Domesday Book, the great survey of England commissioned by William the Conqueror. Travelling the length of the country the pair often find that where property is disputed, passions erupt, often with violent consequences. Delchard and Bret arrive in Archenfield for what should be a straightforward assignment. But they are shocked to discover that a principal witness has been murdered, burned alive in his own home. With an enigmatic symbol the only clue to the killer's identity, the pair must use all their wits to expose the person responsible.