This incident at an end, they all mounted again and rode on, Yussuf in the middle, and Lawrence and Mr Preston, who declared himself better, on either hand, till, at the end of about an hour, the latter said quickly:

“Do you think you are right, Yussuf? These ravines are so much alike. Surely you must have made a mistake.”

“If I am right,” replied Yussuf, pointing forward, “there is a spring of clear water gushing out at the foot of that steep rock.”

“And there is none, I think,” said the professor, “or it would be running this way.”

“If it did not run another, effendi,” said Yussuf grimly. “Yes: I am right. There is the opening of the little valley down which the stream runs, and the ruined rock-dwellings are just beyond.”

If there had been any doubt as to their guide’s knowledge it would have been set aside by the horses, for Mr Burne suddenly uttered a warning shout, and, looking back, they saw the two baggage animals coming along at a sharp pace, which was immediately participated in by the rest of the horses, all trotting forward as fast as the nature of the ground would allow to get to a patch of green that showed at the foot of a great rock; and upon reaching it, there, as Yussuf had said, was a copious stream, which came spouting out from a crevice in the rock, clear, cool, and delicious, for the refreshment of all.

The horses and baggage were left here in charge of the driver, and, following Yussuf, the little party were soon after at the foot of a very rugged precipice, the guide pointing upwards, and exclaiming:

“Behold, effendi, it is as I said.”

For a few moments they all gazed upwards, seeing nothing but what appeared to be the rugged face of the cliff; but soon the eye began to make out a kind of order here and there, and that rugged ranges of stones had been built up on shelves of the rock, with windows and doors, but as far as could be made out these rock-dwellings had been roofless; and were more like fortifications than anything else, the professor said.

“Yes, effendi,” said Yussuf gravely, “strongholds, but dwelling-places as well. People had to live in spots where they would be safe in those days. Are you going to climb up?”