“You refer to the Borneo hill-country?”
“Precisely.”
“No, I was never there.”
“Then this little magical implement will be new to you,” said he.
Standing up, he crossed to a cabinet littered untidily with all sorts of strange-looking objects, carved bones, queer little inlaid boxes, images, untidy manuscripts, and what-not.
He took up what looked like a very ungainly tobacco-pipe, made of some rich brown wood, and, handing it to me:
“Examine this, Mr. Knox,” he said, the boyish smile of triumph returning again to his face.
I did as he requested and made no discovery of note. The thing clearly was not intended for a pipe. The stem was soiled and, moreover, there was carving inside the bowl. So that presently I returned it to him, shaking my head.
“Unless one should be informed of the properties of this little instrument,” he declared, “discovery by experiment is improbable. Now, note.”
He struck the hollow of the bowl upon the palm of his hand, and it delivered a high, bell-like note which lingered curiously. Then: