England 1371: a solemn convoy wends its way into York. William of Wykeham, Bishop of Winchester, is bringing home the remains of Sir Ranulf Pagnell, patriarch of a powerful local family, who has died in France. But the family hold the bishop responsible for Sir Ranulf's death, & ill feeling surrounds his arrival. An accident in the grounds of York Minster nearly kills the bishop.
Then, only a few days after, his townhouse is found ablaze. When the body of a young woman is discovered in the undercroft of the house, scandal threatens to destroy Wykeham. The Archbishop of York, John Thoresby, asks Owen Archer for his help.
The one-eyed spy is troubled. Was the fire an accident or arson? Was the woman trapped or the fire started to conceal a corpse? Stationing guards in front of the smouldering remains, he starts to ask questions. When it appears the dead woman was a midwife known to many of the city's women, including Lucie, Owen's wife, his quest becomes personal.