The Gabriel Hounds by Mary Stewart
Christy Mansel is shopping in Damascus when she sees her cousin Charles for the first time in years. Visiting the area with a tour group, Christy agrees to meet up with Charles in Beirut, Lebanon. Charles wants to visit their reclusive Great-Aunt Harriet in her remote palace, Dar Ibrahim. Christy hires a driver to go sightseeing, and gets a chance to meet Aunt Harriet, but only late at night. Harriet has little contact with her family in England or America, and is living in the crumbling palace with a staff of only three, and handsome John Lethman as companion. Something is clearly not right at Dar Ibrahim, and it isn’t the notorious gabriel hounds that guard the compound at night. Christy smuggles Charles in, and later gets kidnapped herself. An enjoyable gothic romantic suspense novel, with unexpected plot twists, and while somewhat dated, still a good read fifty years after it was published.