Round the corner came a black horse, no hobbit-pony but a full-sized horse; and on it sat a large man, who seemed to crouch in the saddle, wrapped in a great black cloak and hood, so that only his boots in the high stirrups showed below; his face was shadowed and invisible.

When it reached the tree and was level with Frodo the horse stopped. The riding figure sat quite still with its head bowed, as if listening. From the hood came a noise as of someone sniffing to catch an elusive scent; the head turned from side to side of the road.