“I mean,” he said slowly, “that Olaf tie himself!”

“Wait!” he went on at my incredulous gesture of dissent. “Wait, I show you.” He had been standing with hands behind his back and now I saw that he held in them the cut thongs that had bound Huldricksson. They were bloodstained and each ended in a broad leather tip skilfully spliced into the cord. “Look,” he said, pointing to these leather ends. I looked and saw in them deep indentations of teeth. I snatched one of the thongs and opened the mouth of the unconscious man on the bunk. Carefully I placed the leather within it and gently forced the jaws shut on it. It was true. Those marks were where Olaf Huldricksson’s jaws had gripped.