Ralph Delchard, a soldier who fought at the Battle of Hastings, and Gervase Bret, a talented lawyer, have been commissioned by William the Conqueror to look into irregularities brought to light during the compilation of the Domesday Book, the great survey of England. Their investigations take them throughout the kingdom, but the pair often find themselves embroiled in more sinister mysteries in the towns they visit. The King's work is a dangerous business.

The small village of Maldon is controlled by the wealthy and rapacious Fitzcorbucion family. When the eldest son, Guy, is found murdered, his father demands justice and will stop at nothing to get it. Ralph Delchard and Gervase Bret arrive into a charged atmosphere and are entangled in a case far more dangerous than their original task.