Murder In The Snow by Gladys Mitchell
A delight... An amateur sleuth to rival Miss Marple' GuardianMrs Bradley, sharp-eyed detective and celebrated psychiatrist, has decided to spend Christmas with her nephew at his beautiful house in the Cotswolds. It isn't long before a mystery unfolds.
There are strange events occurring in the nearby wood and local villagers are receiving anonymous threatening letters. Then the snow begins to fall - and a body is discovered. Mrs Bradley is on the case, but she'll have to hatch an ingenious plan to reveal the truth and find the culprit...
(Previously published as Groaning Spinney)