A wealthy merchant has been murdered in his own home, and the suspect has fled to sanctuary in a local church. Enter Sir Faucon de Ramis, the king's new keeper of the peas, to solve the murder, assisted by his prickly secretary, Brother Edmund. This time, the hunt leads Sir Faucon into the upside-down world of a woman's trade where the merchant's wife owns the business - Unheard of! - only to discover he isn't the only one on the hunt.

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.

England, 1176. Aelred Barling, esteemed clerk to the justices of King Henry II, is dispatched from the royal court with his young assistant, Hugo Stanton, to investigate a brutal murder in a village outside York. The case appears straightforward. A suspect is under lock and key in the local prison, and the angry villagers are demanding swift justice. But when more bodies are discovered, certainty turns to doubt - and amid the chaos it becomes clear that nobody is above suspicion.

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....

To escape a lifetime of poverty, mercenary Sir Benedict Palmer agrees to one final, lucrative job: help King Henry II's knights seize the traitor Archbishop Thomas Becket at Canterbury Cathedral. But what begins as a clandestine arrest ends in cold blooded murder. And when Fitzurse, the knights' ringleader, kidnaps Theodosia, a beautiful young nun who witnessed the crime, Palmer can sit silently by no longer.

The year is 1143, and King Owain seeks to unite his daughter in marriage with an allied king. But when the groom is murdered on the way to his wedding, the bride's brother tasks his two best detectives - Gareth, a knight, and Gwen, the daughter of the court bard - with bringing the killer to justice.

Three young girls have been abducted from their homes. The body of one has been found in a shallow grave. The other two are still missing. The murder has shocked everyone in the peaceful city of Delft, and the mayor is desperate to catch the perpetrator before panic can spread any further. With the bitterly cold January weather intensifying, it is doubtful that the other two girls are still alive. But whoever took them is still at large.

The much-feared and hated Eudo - the Lord Bishop of Winchester's clerk - is bludgeoned to death in Pershore Abbey and laid before the altar in the attitude of a penitent. Everyone who had contact with him had reason to dislike him, but who had reason to kill him? The Sheriff of Worcestershire's thief taker, wily Serjeant Catchpoll, and his new and unwanted superior, Undersheriff Hugh Bradecote, have to find the answer. And as the walls of the abbey close in on the suspects, the killer strikes again....

1603. Former ship's surgeon Gabriel Taverner is attempting to re-establish himself as a physician in rural Devon but it's not easy to gain the locals' trust and a series of disturbing incidents convinces him that at least one person does not welcome his presence. Called out to examine a partially decomposed body found beside the river, Gabriel discovers he has a personal connection to the dead man.

Twelfth century England: Two men vie for the throne: King Stephen the usurper and young Duke Henry the rightful heir. Amid civil and private wars, alliances are forged, loyalties are betrayed, families are divided, and marriages are made. For four years, Lady Annyn Bretanne has trained at arms with one end in mind - to avenge her brother's murder as God has not deemed it worthy to do. Disguised as a squire, she sets off to exact revenge on a man known only by his surname, Wulfrith.

In 1360, the Great Bridge over the River Cam is close to collapse. To repair it will cost the town and the University dear, especially if its rotten wood is replaced by more durable stone. As arguments rage over raising the money other, equally heated, differences are coming to the boil over the election of a new chancellor. While the majority support Brother Michael for the post, at least one of his opponents aims to seize it by fair means or foul. Then the discovery of a body under the bridge and the disappearance of two scholars throws a more sinister shadow over both disputes.

Oxford, Spring 1353. When young bookseller Nicholas Elyot discovers the body of student William Farringdon floating in the river Cherwell, it looks like a drowning. Soon, however, Nicholas finds evidence of murder. Who could have wanted to kill this promising student? As Nicholas and his scholar friend Jordain try to unravel what lies behind William's death, they learn that he was innocently caught up in a criminal plot.

After his recent unveiling of a devious assassin, Sir Hugh Corbett has returned to service as the Keeper of the Secret Seal, begrudgingly admitting that his appetite for adventure has once again been whetted. Summoned to meet the King to be congratulated on their work together, Corbett and Ranulf learn of the death of Corbett's close friend, Ralph Grandison. Ralph, a leper, has been found dead in a rowing boat, a dagger thrust through his chest. But this murder is not the first of its kind.

It is the year of our Lord 1363. And in the cathedral city of York people are dying in mysterious circumstances. But there seems to be a common thread - the herbal remedies dispensed by Nicholas Wilton, Master Apothecary. The first victim is an anonymous pilgrim. But when a highborn nobleman dies after taking the same potion the authorities decide to act. Dispatched to York, in disguise, to unravel the mystery, Owen Archer, former Captain of Archers, apprentices himself to the Apothecary.

As the leading churchmen and women gather at the Synod of Whitby in AD 664 to debate the rival merits of the Celtic and Roman Churches, tempers begin to fray. Conspirators plot an assassination, while mysterious, violent death stalks the shadowy cloisters of the Abbey of St Hilda. When the Abbess Etain, a leading speaker for the Celtic Church, is found murdered, suspicion inevitably rests on the Roman faction. Attending the Synod is Fidelma, of the community of St Brigid of Kildare.