Death of a Poison Pen by M.C. Beaton

A sudden outbreak of maliciousness strikes the town of Lochdubh in the form of a rash of poison pen letters. Things turn deadly when the local postmistress is found hanged in her room... with a vicious note beneath her dangling feet. Though his superiors call it suicide, PC Hamish Macbeth pronounces it murder. But Hamish is soon distracted by Jenny Ogilvie, a friend of his ex-fiancee, who arrives in Lochdubh to seduce him. And then he's ambushed by local reporter Elspeth Grant, who sets out to land the story - and Hamish - for herself.
Caught in the middle of this volatile case, Hamish faces dangerous romances... and a blackhearted culprit wielding a mighty - and lethal - pen.
Praise for the Hamish Macbeth series:
The much-loved Hamish Macbeth series. beguiling blend of wry humour and sharp observations about rural life. - Good Book Guide.
It's always a special treat to return to Lochdubh. - New York Times Book Review.

The detective novels of M C Beaton, a master of o.utrageous black comedy, have reached cult status. - Anne Robinson, The Times