I cleansed and bandaged the Norseman’s lacerated wrists and sponged the blackened, parched mouth with warm water and a mild antiseptic.

Suddenly I was aware of Da Costa’s presence and turned. His unease was manifest and held, it seemed to me, a queer, furtive anxiety.

“What you think of Olaf, sair?” he asked. I shrugged my shoulders. “You think he killed his woman and his babee?” He went on. “You think he crazee and killed all?”

“Nonsense, Da Costa,” I answered. “You saw the boat was gone. Most probably his crew mutinied and to torture him tied him up the way you saw. They did the same thing with Hilton of the Coral Lady ; you’ll remember.”

“No,” he said. “No. The crew did not. Nobody there on board when Olaf was tied.”

“What!” I cried, startled. “What do you mean?”