For the Blood is the Life by F. Marion Crawford

We had dined at sunset on the broad roof of the old tower, because it was cooler there during the great heat of summer. Besides, the little kitchen was built at one corner of the great square platform, which made it more convenient than if the dishes had to be carried down the steep stone steps, broken in places and everywhere worn with age. The tower was one of those built all down the west coast of Calabria by the Emperor Charles V. early in the sixteenth century, to keep off the Barbary pirates, when the unbelievers were allied with Francis I. against the Emperor and the Church. They have gone to ruin, a few still stand intact, and mine is one of the largest. How it came into my possession ten years ago, and why I spend a part of each year in it, are matters which do not concern this tale.

The tower stands in one of the loneliest spots in Southern Italy, at the extremity of a curving rocky promontory, which forms a small but safe natural harbour at the southern extremity of the Gulf of Policastro, and just north of Cape Scalea, the birthplace of Judas Iscariot, according to the old local legend. The tower stands alone on this hooked spur of the rock, and there is not a house to be seen within three miles of it. When I go there I take a couple of sailors, one of whom is a fair cook, and when I am away it is in charge of a gnome-like little being who was once a miner and who attached himself to me long ago.