From the Publisher:
When Sandor snatches little Joe from the path of a London tube, he makes it clear that Joe's life now belongs to him. Sandor begins to tell him a mysterious story and teaches Joe that he is a "gallowglass", the servant of a chief.
Barbara Vine: Gallowglass. Penguin, ISBN: 0140132058 (December, 1990), 304 p., £6.99