The Three Kings Of Cologne by Kate Sedley

Set in the medieval city of Bristol, the story follows Roger the Chapman, a peddler with a knack for solving mysteries. As he navigates the bustling streets and intricate social hierarchies, Roger becomes embroiled in a complex investigation involving the theft of a precious relic, the Three Kings of Cologne. With his keen observational skills and a deep understanding of human nature, Roger unravels a web of deceit, betrayal, and ambition, ultimately uncovering the truth behind the relic's disappearance and restoring peace to the community.