The Night of the Visitor — Ruth Willock

What dangers lay hidden in the old stones of Valicombe?

Ann's father had forbidden her to return to the family seat. But now he was dead, and Glenn, her husband of a few weeks, had disappeared. There was nowhere for Ann to go but Valicombe, which, like a deceptively shiny apple, was eaten away inside by bitterness and decay.

Alone in an isolated lodge and surrounded by hostile, secretive relatives, any one of whom might be a murderer, Ann fought a lonely battle for the two things most precious to her: her husband and her life.