But most upsetting to the Milnes is the disappearance of a woman and her daughter who were their particular friends. Strange things begin to happen as they investigate their friends' disappearance. A blue Volvo starts trailing them across the countryside. Touristy spots become unfriendly to outsiders. Ravens attack them as they sightsee.
Clues appear here and there, only to lead to more mysteries.
The Milnes find themselves wary of anyone they encounter. The only one they trust implicitly is an aged priest, Father Bonaventure, but there is little he can do because of his religious vows. There is the American movie director, Douglas Butler, but his estate, Dunraven, is somehow tied into things. I've been unable to find anything else by Kenneth C. Flint, more's the pity. The Darkening Flood is so masterfully written that his other works must be just as informative, just as interesting, and just as enjoyable.