Second cousins Christy and Charles Mansel, while on separate holidays, bump into each other on a street called Straight in Damascus. With the devil may care attitude of the wealthy and privileged, the two decide to look up Great Aunt Harriet, an infamous recluse holed up in her palace in the mountains outside of Beirut.
Christy gets there first and after literally barging her way in soon finds herself in the midst of a seriously creepy palace right out of the Arabian Nights peopled with insolent servants, crumbling plaster, leaking roofs as well as the hounds who prowl the grounds at night. All too soon they discover that if entrance to the palace is difficult, retreat from it is almost impossible - and the legend of the Gabriel Hounds becomes frighteningly real.