December, 1380. When the corpse of Sir Robert Kilverby is discovered in a locked room, Brother Athelstan accompanies the King’s coronor to investigate. For the late Sir Robert had in his possession a sacred bloodstone which he was planning to donate to the Abbey of St Fulcher-on-Thames.

Germany, 1660: When a dying boy is pulled from the river with a mark crudely tattooed on his shoulder, hangman Jakob Kuisl is called upon to investigate whether witchcraft is at play in his small Bavarian town. Whispers and dark memories of witch trials and the women burned at the stake just seventy years earlier still haunt the streets of Schongau.

Matthew Bartholomew, unorthodox but effective physician to Michaelhouse college in medieval Cambridge, is as worried as anyone about the pestilence that is ravaging Europe and seems to be approaching England. But he is distracted by the sudden and inexplicable death of the Master of Michaelhouse - a death the University authorities do not want investigated.

In the small 14th-century English village where he has lived his entire life, the boy has grown up with no name of his own, known only as "Asta's son". But when his mother dies, the boy receives both his rightful name, Crispin, and a lead cross, inscribed with a secret that soon has him fleeing for his life.

Crowner John is summoned to investigate the murder of a tin miner. The victim worked for Devon's most powerful and successful mine owner, Walter Knapman. There seems, to be only one motive - to sabotage Walter's business. But the tinners have their own laws, and they are none too pleased at Crowner John's interference. How on earth can Crowner John sort all this out when his own life is in turmoil?

The tenth story in the popular Gil Cunningham series set in medieval Glasgow. 'The tale seems very improbable,' Gil Cunningham said. 'How should the Devil enter a religious house and carry off one of its members?' How indeed? But Arnold Fleming, the widely dislike pensioner, or corrodian, lodged in the Dominican's house in Perth, has vanished from a chamber, and a local knight and his mistress claim to have seen the Devil abroad that very same night.

London, 1385: Surrounded by ruthless courtiers - including his powerful uncle, John of Gaunt, and Gaunt's artful mistress, Katherine Swynford - England's young king, Richard II, is in mortal peril. Songs are heard across London - catchy verses said to originate from an ancient book that prophesies the ends of England's kings - and among the book's predictions is Richard's assassination. Only a few powerful men know that the cryptic lines derive from a "burnable book", a seditious work that threatens the stability of the realm.

Accused of treason and stripped of his knighthood, Crispin Guest has survived on the gritty streets of London by reinventing himself as The Tracker, an investigator for hire who can locate lost objects and uncover secrets. When the merchant Nicholas Walcote hires Guest to investigate his young wife Philippa for adultery, he discovers an underground world of danger and dirty dealings. Philippa is indeed hiding something—but she's not the only one. Walcote himself is rumored to possess a holy relic so powerful that some would even kill for it.

In medieval England, four children have been murdered, and the townsfolk blame their Jewish neighbors. The doctor chosen to investigate is a woman, Adelia. As she examines the victims and retraces their last steps, she must conceal her true identity in order to avoid accusations of witchcraft. Along the way, she's assisted by Sir Rowley Picot, a man with a personal stake in the investigation. A former Crusader knight, Rowley may be a needed friend - or the fiend for whom they are searching.

In the kingdom of Gwynedd, the mysterious forces of magic and the superior power of the Church combine to challenge the rule of young Kelson. Now the fate of the Deryni -- a quasi-mortal race of sorcerers -- and, indeed, the fate of all the Eleven Kingdoms, rests on Kelson's ability to quash the rebellion by any means necessary...including the prescribed use of magic!

Giulia Tofana longs for more responsibility in her mother’s apothecary business, but Mamma has always been secretive and refuses to tell her the hidden keys to her success. But the day Mamma is arrested for the poisoning of the powerful Duke de Verdi, Giulia is shocked to uncover the darker side of her trade. Giulia must run for her life and escapes to Naples, under the shadow of Mount Vesuvius, to the home of her aunt Isabetta, a famous courtesan.

The plague raging through London in 1665 has emptied the city. The only people left are those too poor to flee or those who selflessly struggle to control the contagion and safeguard the capital's future. Amongst them, though, are those prepared to risk their health for money - those who sell dubious 'cures' and hawk food at wildly inflated prices. Also amongst them are those who hold in their hands the future of the city's most iconic building - St Paul's Cathedral.

London, September 1666. The Great Fire rages through the city, consuming everything in its path. Even the impregnable cathedral of St. Paul's is engulfed in flames and reduced to ruins. Among the crowds watching its destruction is James Marwood, son of a disgraced printer and reluctant government informer. In the aftermath of the fire, a semi-mummified body is discovered in the ashes of St. Paul's, in a tomb that should have been empty. The man's body has been mutilated, and his thumbs have been tied behind his back.

England, 1486. King Henry VII has recently snatched the English Crown and now sits on the throne, while young Prince Edward, who has a truer claim, has apparently disappeared. Meanwhile, a penniless kitchen boy named Lambert Simnel is slaving away at a tavern in Oxford - until a mysterious friar, Brother Simonds, buys Lambert from the tavern keeper and whisks him away in the dead of night. But this is nothing compared to the secret that the friar reveals: You, Lambert, are actually Prince Edward, the true King of England!

Saker appears to be a simple priest, but in truth he's a spy for the head of his faith. Wounded in the line of duty by a Lascar sailor's blade, the weapon seems to follow him home. Unable to discard it, nor the sense of responsibility it brings, Saker can only follow its lead. The dagger puts Saker on a journey to distant shores, on a path that will reveal terrible secrets about the empire, about the people he serves, and destroy the life he knows.