Saint Peter's Fair

_Discover Brother Cadfael: Former soldier. Benedictine monk. Amateur sleuth.
_
The Cadfael Chronicles, by Diamond Dagger winner Ellis Peters, follow the mediaeval mysteries of one of classic crime's most unique detectives.

In July of 1139, a quarrel between the local burghers and the monks of the Benedictine monastery over Shrewsbury's annual Fair leaves a merchant dead.