Mrat-See turned quickly, wincing at the protest of his aching muscles. The creature standing before him might have issued from a nightmare. Its heavy, barrellike body was slung like a hammock on four bowed legs. The enormous head, with undershot jaw, protruding fangs, and pendulous lips, was turned toward him unswervingly, and the continuing growl was a deep rumble of menace from the massive chest. Mrat-See’s heart leaped with fear. He had seen such creatures before in the Yorkgrad zoo. Dogs they were called.