He had felt perfectly sure all along; but the significance of the facts had not struck him.

It was plain to him now that there must be something of extraordinary and peculiar importance about Room No.111.After lunch he wandered quietly upstairs and looked at Room No.

111; that is to say, he looked at the outside of it; it happened to be occupied, but the guest was leaving that evening.

The thought crossed his mind that there could be no object in gazing blankly at the outside of a room; yet he gazed; then he wandered quickly down again to the next floor, and in passing along the corridor of that floor he stopped, and with an involuntary gesture stamped his foot.
'Great Scott!' he said, 'I've got hold of something--No.

111 is exactly over the State apartments.' He went to the bureau, and issued instructions that No.