"I expect this is the room where the married troops lived and slept," Harry said; "there is not much to see here."

The two stories above were exactly similar, except that there were no remains of dividing mats nor of female ornaments. They walked to the narrow end. Here the opening for light was of a different shape from those in the rooms below. It had apparently been originally of the same shape, but had been altered. In the middle it was, like the others, three feet high and six inches wide, but a foot from the bottom there was a wide cut, a foot high and three feet wide. As they approached it Dias gave an exclamation of surprise. Two skeletons lay below it. "They must have been on watch here, seņor, when they died," he said as they came up to them.

"It is a rum place to watch," Bertie said, "for you cannot see out."

"You are right, Bertie, it is a curious hole."

The wall was over two feet thick; all the other openings had been driven straight through it, and, as they had noticed, were doubtless made in the stones before they were placed there, for inside they were cleanly cut, and it was only within three inches of the outer face that the edges had been left rough. This opening was of quite a different character. It sloped at a sharp angle, and no view of the open sea could be obtained, but only one of the line of rocks at the foot of the cliffs. It was roughly made, and by the marks of tools, probably of hardened copper, it had evidently been cut from the inside.