When the 14th-century Canterbury Psalter is stolen from the quiet library of St. Mary-in-the-Fens—and its beloved custodian is found murdered in the stacks—a serene English parish is plunged into a dark web of intrigue.

Local police inspector William Robinson turns to the town’s scholarly Anglican vicar, Reverend Thomas Davies, to help navigate the historical nuances of the crime. Joining forces with Sarah Morgan, the brilliant head archivist fleeing her own past in London, Thomas discovers that the theft was no random robbery. Buried within the medieval manuscript's illuminated margins lies a coded 15th-century land grant—a hidden charter with the power to protect the local fenlands or enrich a ruthless ring of corrupt officials and black-market antiquities smugglers.

As a cold-blooded killer closes in to eliminate anyone who can decipher the text, Thomas and Sarah race through fog-shrouded marshlands, dusty cathedral vaults, and forgotten parish archives. In their search for justice, their intellectual partnership deepens into a quiet, enduring love—one that will be tested when the killer makes a desperate final play to destroy the evidence and everyone guarding it.

The Canterbury Psalter Murders is a rich, atmospheric British cozy mystery perfect for fans of historical ciphers, small-town secrets, academic sleuths, and slow-burn romance.