He heard voices.
He saw the gleam of a light at the end of the passage.
He was apparently approaching some robbers' lair. Here was a fresh peril.
But there was still time to draw back from it.
No; urged on by curiosity, Harry determined to see and know the worst.
In a few moments that curiosity was gratified.
He came to a point where the narrow, winding passage terminated, leading out into a lofty, rugged vault fitted up in rude imitation of a room.
Here, seated upon the floor in a group were about a dozen men, all armed, and by their dress and appearance evidently Bedouin Arabs.
Harry was at once reassured.
He knew that the Arabs were enemies to the Turks.