they would not be noticed, and, on the whole, that plan would be safer. If they were seen, even in the dead of night, in the corridor—possibly in slippers and pajamas—by the watchman, no suspicion would have been aroused. Previously they had managed to get an impression of the seal and made one like it. They then broke the seal and entered the room by means of a master key. The confederate outside immediately clapped on another seal, and those inside were quite safe until they were ready. After the body was stolen, another seal was affixed which gave them plenty of time and prevented discovery by the night watchman, to say nothing of the addition of mystery to the thing."

The inspector nodded approvingly. So far as he could see, the reasoning was perfectly clear. But then it did not tend to throw any light on the strange disappearance of the body.

"So far I follow you perfectly, sir," Field said. "Nothing could be clearer or more logical. In that way it would be comparatively easy to enter the bedroom and make preparations for the removal of the body without any chance of being interrupted. At this part the real trouble begins. The body is a bulky thing, and has to be removed from the hotel. How was that to be done? How could it be done without somebody knowing? That is where I am at fault."

"It could be done in this way," Mark said. "The body might have been removed to a bedroom close by and packed in a large trunk by somebody who ostensibly was going by a very early train."

"Pardon me," the inspector interrupted, "nobody went by an early train. We have gone into that most carefully. Of course a lot of people have left early to-

day—as they do every day—but, so far as I can hear, nobody in the least suspicious."

"Then it was done in another manner. It is not quite clear to me how, at present, although I have my idea on the subject. Before I could speak definitely on that point I should like to see the night watchman and the hall porter."

But neither of these officials was present. They had gone off duty at seven o'clock, and they did not return again till late in the afternoon. It seemed a pity to disturb their rest, but Field decided that they must be sent for—and indeed he had already dispatched a messenger for that purpose. Till the two men came to the hotel, nothing further could be done in that direction. There was a little pause here.

"I fancy I can throw some light on this," Beatrice said. "In the first place, will somebody ascertain for me whether the Countess de la Moray and General Gastang are still staying in the hotel? I feel pretty sure they are gone, but it is just possible that such may not be the case. Let this inquiry be made delicately, please."

Inspector Field departed to ask the question himself. He came back presently with the information that the General and the Countess had already gone, in fact they had not really been staying in the hotel at all—their luggage was elsewhere, as the hotel they generally favoured was full—they had only come to the Royal Palace Hotel for the night, and it had been their intention to proceed to Paris in the morning.