In the year of our Lord 1363, two suspicious deaths in the infirmary of St. Mary's Abbey catch the attention of the powerful John Thoresby, Lord Chancellor of England and Archbishop of York. One victim is a pilgrim, while the second is Thoresby's ne'er-do-well ward, both apparently poisoned by a physic supplied by Master Apothecary Nicholas Wilton. In the wake of these deaths, the archbishop dispatches one-eyed spy Owen Archer to York to find the murderer.

Salisbury, 1226. A young pregnant woman is found tangled in reeds in the river Avon, her identity a mystery. Grieving widow Ela Longespée is determined to succeed her husband as sheriff of Salisbury, and quickly takes charge of the investigation. She soon finds herself in the thick of a neighborhood scandal and a struggle to maintain her authority. With multiple suspects, can she identify the true killer?

As a bard's daughter, Gwen has spent her life traveling from castle to castle and village to village with her family, following the music. In the winter of 1141, Gwen's family is contracted to provide the entertainment for the coming-of-age celebration of a lord's son. But before the celebration can begin, Gwen's father is found over the body of his friend, with a harp string as the murder weapon and blood on his hands. With the lord of the castle uninterested in finding the true killer, it is up to Gwen to clear her father's name before her father's music is silenced...forever.

When young Tyballis discovers her husband has been arrested for murder, she is delighted. As a young orphan coerced to marry her abusive neighbor, she was horribly used. Now is her chance to be rid of him for good and find the confidence she never had. When Tyballis joins forces with the motley network of Andrew’s informers and thieves, they are lured into the dark and dangerous world of medieval London’s political intrigue and back alley slums.

In AD 664 King Oswy of Northumbria has convened a synod at Whitby to hear debate between the Roman and Celtic Christian Churches and decide which shall be granted primacy in his kingdom. At stake is much more than a few disputed points of ritual; Oswy's decision could affect the survival of either Church in the Saxon kingdoms. When the Abbess Etain, a leading speaker for the Celtic Church, is found murdered, suspicion falls upon the Roman faction.