Transcription: Speechless with shock, we began to return to where we had left the raft. We were making our way over some rocks when I spotted something shining in the sand. I stooped to pick it up. What is it? asked the professor. I showed him a rusty knife. It must be a weapon of some prehistoric warrior, I said. But it can't be. It isn't from the Stone Age or even the Bronze Age. This is made of steel. My uncle stopped me short. yourself he said this knife is Spanish from the 16th century look at the rust it has been lying here for one two or three hundred years see its jagged edges as if it has been used ...
