“There were other people in the hall, especially at my end of it. A perfect throng was coming from the billiard-room, where the dancing had been, and it might easily be that he could both enter and leave that secluded spot without attracting attention. He had shown too early and much too unmistakably his lack of interest in the general company for his every movement to be watched as at his first arrival. But this is simple conjecture; what I have to say next is evidence. The stiletto—have you studied it, sir? I have, from the pictures. It is very quaint; and among the devices on the handle is one that especially attracted my attention. See! This is what I mean.” And I handed him a drawing which I had made with some care in expectation of this very interview. He surveyed it with some astonishment. “I understand,” I pursued in trembling tones, for I was much affected by my own daring, “that no one has so far succeeded in tracing this weapon to its owner. Why didn’t your experts study heraldry and the devices of great houses? They would have found that this one is not unknown in England. I can tell you on whose blazon it can often be seen, and so could—Mr. Grey.” X. I ASTONISH THE INSPECTOR I was not the only one to tremble now. This man of infinite experience and daily contact with crime had turned as pale as ever I myself had done in face of a threatening calamity. “I shall see about this,” he muttered, crumpling the paper in his hand. “But this is a very terrible business you are plunging me into. I sincerely hope that you are not heedlessly misleading me.”