The Witch Hunter (Coroner John's mystery)
Bernard Knight2004

Exeter, 1995. When a wealthy mill-owner falls dead across his horsec Sir John de Wolfe, the county coroner, declines to hold an inquests as the man was considerably overweight, had been complaining of chest pains and shows no signs of injury. A clear-cut case of death from natural causes.
Events take a sinister turn when a straw doll is discovered hidden beneath the man's saddle-bag, a thin metal spike through its heart.

Titre original : The Witch Hunter (2004)