Death of a Laird by M. C. Beaton

A wealthy laird's guests are trapped in his estate during a furious storm-but when the laird turns up dead, Scotland's amiable and quick-witted policeman, Hamish Macbeth, is on the case, in this delightful new short story in M. C. Beaton's New York Times bestselling series.
When Sergeant Hamish Macbeth is sent to investigate reports that the wealthy new laird of the remote Naglar House has disappeared, northwest Scotland is hit by the worst storm in living memory. The road is washed away, phone lines are down, mobile reception is dead, and his police radio is out of order. He is trapped with the laird's high-class house guests. Then he discovers the laird's body.
Forced to remain overnight at the house, Hamish interviews each of the guests and pieces together an alarming picture of clandestine infidelity, vicious jealousy, deadly revenge, lust, greed, and fear. It begins to look like all of the guests had good reason to want the laird dead, but which one of them actually did the deed?