Death of a Traitor: Hamish Macbeth, Book 35 by M. C. Beaton and R.W. Green (HC/DJ) 2023!
Sergeant Hamish Macbeth is called in to investigate the disappearance, and soon he is befuddled by a storm of lies, intrigue, and scandal . . . and the sneaking suspicion that Kate was someone much more sinister than she claimed. Torn between loyalty to Lochdubh and his job, Hamish begins threading his way through a maze of deceit, quickly finding himself on the trail of a ruthless, treacherous murderer. If he catches the killer, peace can return to the village. If he fails, he will lose everything: his job, his home, and the life he so loves in Lochdubh.