even in daylight—it began fighting in the most frenzied and terrific fashion. It made him afraid to interfere, he said. And at last, when the dog came out, hanging its tail down and panting, he found something like white hair stuck to its jaws, and brought it to show me. I tell you these details because"
"They are important, believe me," the doctor stopped him. "And you have it still, this hair?" he asked.
"It disappeared in the oddest way," the Colonel explained. "It was curious looking stuff, something like asbestos, and I sent it to be analysed by the local chemist. But either the man got wind of its origin, or else he didn't like the look of it for some reason, because he returned it to me and said it was neither animal, vegetable, nor mineral, so far as he could make out, and he didn't wish to have anything to do with it. I put it away in paper, but a week later, on opening the package—it was gone! Oh, the stories are simply endless. I could tell you hundreds all on the same lines."
"And personal experiences of your own, Colonel Wragge?" asked John Silence earnestly, his manner showing the greatest possible interest and sympathy.
The soldier gave an almost imperceptible start. He looked distinctly uncomfortable.
"Nothing, I think," he said slowly, "nothing—er—I should like to rely on. I mean nothing I have the right to speak of, perhaps—yet."
His mouth closed with a snap. Dr. Silence, after waiting a little to see if he would add to his reply, did not seek to press him on the point.
"Well," he resumed presently, and as though he
