How to Read the Kathryn Swinbrooke Series
The Kathryn Swinbrooke mysteries, written by renowned historian and author Paul Doherty under the pen name C.L. Grace, follow a brilliant female apothecary and physician navigating the dangerous political waters of medieval Canterbury. Because the series features a continuous narrative arc detailing Kathryn's relationship with the Irish mercenary Colum Murtagh and her evolving role in the Yorkist administration, it is highly recommended to read the books in order of publication.
Fortunately, the publication order matches the chronological timeline of the story perfectly. You do not need to worry about confusing prequels or flashbacks—simply follow the series from Kathryn's first case to her final investigation.
The Kathryn Swinbrooke Reading Order
Here is the complete list of the seven Kathryn Swinbrooke novels in their recommended reading order:
1. A Shrine of Murders (1993)
The series begins shortly after the Yorkist victory at the Battle of Barnet in 1471. Canterbury, which supported the defeated Lancastrians, is tense. The city's economic lifeblood—pilgrims visiting the shrine of Thomas Becket—is threatened when a serial killer begins poisoning pilgrims and leaving cryptic, Chaucer-esque verses as clues. Kathryn Swinbrooke is recruited by the town council to use her apothecary skills to identify the poison and track down the murderer. During this case, she first encounters Colum Murtagh, the fierce Irish soldier serving as King Edward IV's Commissioner.
2. The Eye of God (1994)
In the second book, the focus shifts to a missing royal relic. The legendary jewel known as "The Eye of God" has vanished following the Battle of Barnet. A captured squire suspected of hiding it dies mysteriously in prison, and Kathryn is called in to investigate the death. Alongside Colum Murtagh, she must solve the mystery of the squire's death and trace the missing gem before rival factions seize it to destabilize the crown.
3. The Merchant of Death (1995)
Set during a bitter winter storm in December 1471, Canterbury is completely snowbound. A local painter confesses to murdering his wife and her lovers, but Kathryn suspects there is a more complex truth. Meanwhile, a widely disliked royal tax collector is found dead in a locked room at the Wicker Man tavern, and the king's tax gold is missing. Kathryn and Colum must untangle a classic locked-room mystery while trapped with a house full of suspicious guests.
4. The Book of Shadows (1996)
The stakes turn occult in the fourth mystery. Tenebrae, a notorious necromancer and blackmailer, is murdered inside another locked room. Before his death, he possessed a dangerous grimoire known as the Book of Shadows, which contains incriminating secrets about high-ranking royals. Kathryn is tasked with finding the book and catching the killer, a task made more urgent when the prime suspects—a group of goldsmiths visiting from London—begin dying one by one.
5. Saintly Murders (2001)
Kathryn is appointed by the Archbishop of Canterbury as the Devil's Advocate to investigate the proposed beatification of Friar Roger Atworth, who died under suspicious circumstances. While locals report miracles surrounding his body, Kathryn uncovers evidence of cold-blooded murder. The case is further complicated by a devastating rat infestation in Canterbury and ties to the King's own mother, Cecily Neville.
6. A Maze of Murders (2003)
A wealthy lord, Sir Walter Maltravers, is brutally killed and found in the center of his own hedge maze, with his head impaled on a pole. The crime appears linked to his past during the Fall of Constantinople and a secret Byzantine group called the Athanatoi. Kathryn and Colum must recover a stolen holy relic, the Lacrima Christi, and stop a killer seeking vengeance for ancient betrayals.
7. A Feast of Poisons (2004)
In the final installment of the series, Kathryn (now married to Colum) travels on royal business to the coastal village of Walmer. The diplomatic mission is threatened when a local blacksmith and his wife die on the same day from different poisons. Kathryn must expose a network of spies working for the French "Spider King" Louis XI to prevent political ruin and catch a cunning murderer.
What to Know Before You Start
The Kathryn Swinbrooke series is a standout in the historical mystery genre due to its strong, independent heroine who defies the strict patriarchal norms of the 15th century. As a female physician and apothecary (a rare profession for a woman at the time), Kathryn uses medieval medicine, herbal science, and sharp logic to solve crimes, rather than relying on superstition.
Author Paul Doherty brings his extensive academic background in medieval history to the series. The political landscape of the Wars of the Roses is central to the plots, providing realistic stakes and authentic settings. Readers who enjoy Ellis Peters' Brother Cadfael or Susanna Gregory's Matthew Bartholomew series will find a similar blend of historical detail and puzzle-box mystery here.