emselves in a room extending over
the whole width and depth of the house. The roof at the eastern end was
not supported by pillars, but by walls three feet wide and seven or
eight feet apart. The first line of these was evidently over the wall
of the room they had left. There were four lines of similar supports
erected, they had no doubt, over the walls of rooms below. The light
from the four windows in front, and from an irregular opening at the
other end some three feet high and six inches wide, afforded sufficient
light for them to move about without difficulty. There were many signs
of human habitation here. Along the sides were the remains of mats,
which had apparently divided spaces six feet wide into small
apartments. Turning these over they found many trifles--arrow-heads,
bead-necklaces, fragments of pots, and even a child's doll.

"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, senor, 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. Thi