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. A man’s body is found mutilated in Savernake Forest and the residents of Bedwyn sleep uneasy at night, fearing a monster stalking the town. When Ralph Delchard and Gervase Bret arrive, they discover that the locals are harbouring dark secrets and that the real killer may be a little closer to home....

Hugh of Singleton, fourth son of a minor knight, has been educated as a clerk, usually a prelude to taking holy orders. However, feeling no certain calling despite a lively faith, he turns to the profession of surgeon, training in Paris and then hanging out his sign in Oxford. A local lord asks him to track the killer of a young woman whose bones have been found in the castle cesspit. She is identified as the impetuous missing daughter of a local blacksmith, and her young man, whom she had provoked very publicly, is in due course arrested and sentenced at the Oxford assizes.

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?

The year is 1018 and the war with England is finally over, but the unified kingdom ruled by Cnut of Denmark is far from peaceful. Halfdan has lost everything to the war but his sense of humor. Once a proud nobleman, now he wanders the country aimlessly powered only by his considerable charm and some petty theft. When he finds an unlikely ally in Winston, a bookish former monk, the two set out together for Oxford, the seat of the new king.

The Monastery at Whitby is ruled over by the powerful and independent Abbess Hild. But when she needs someone to confide in, she turns to the honest warmth of her friend Fridgyth, the half-pagan herb-wife. A divisive and life-altering decision taken at the Great Synod is swiftly overshadowed as the monastery is ravaged by a deadly plague. As she tends the sick, Fridgyth starts to suspect that not all the deaths are natural. Despite Hild's stern warnings "not to meddle" she sets out to investigate.