“There’s the dinner gong,” said the Doctor. “If this matter interests you I’ll tell you about it afterwards.”

It did interest me very much, for there was something earnest and subdued in his manner as he stood in the empty cooperage, which appealed very forcibly to my imagination. He was a big, bluff, hearty man, this Doctor, and yet I had detected a curious expression in his eyes as he glanced about him—an expression which I would not describe as one of fear, but rather that of a man who is alert and on his guard.

“By the way,” said I, as we returned to the house, “you have shown me the huts of a good many of your native assistants, but I have not seen any of the natives themselves.”

“They sleep in the hulk over yonder,” the Doctor answered, pointing over to one of the banks.

“Indeed. I should not have thought in that case that they would need the huts.”

“Oh, they used the huts until quite recently. We’ve put them on the hulk until they recover their confidence a little. They were all half mad with fright, so we let them go, and nobody sleeps on the island except Walker and myself.”

“What frightened them?” I asked.

“Well, that brings us back to the same story. I suppose Walker has no objection to your hearing all about it. I don’t know why we should make any secret about it, though it is certainly a pretty bad business.”

He made no further allusion to it during the excellent dinner which had been prepared in my honour. It appeared that no sooner had the little white topsail of the Gamecock shown round Cape Lopez than these kind fellows had begun to prepare their famous pepper-pot—which is the pungent stew peculiar to the West Coast—and to boil their yams and sweet potatoes. We sat down to as good a native dinner as one could wish, served by a smart Sierra Leone waiting boy. I was just remarking to myself that he at least had not shared in the general flight when, having laid the dessert and wine upon the table, he raised his hand to his turban.

“Anyting else I do, Massa Walker?” he asked.