"You are not thinking of making your escape now?" El Bakhat asked, looking scrutinizingly at Edgar under his heavy eyebrows.

"No, sheik," Edgar answered. "From the day that you captured me I made up my mind that I would escape sooner or later, whatever the risk; but I knew well that I could never traverse the country until I could speak the language like a native. I have made great progress, and can now understand all that is said and can talk freely and easily, but not so that I could travel alone as a native. It will be months yet before I can do that. Nor, after the kindness with which you have treated me, would I leave you suddenly without warning. When I feel that I can safely travel alone I shall give you fair warning. I shall say to you, Sheik, if you will now travel with me to Suakim or some other port where I can obtain money for paying you a fair ransom I will remain with you until such ransom is paid into your hands; if you will not do so I shall consider myself free to escape when I can. Of course it will be open to you to treat me again as a slave, and to use all vigilance to prevent my leaving you, but I shall consider that by giving you fair warning I shall be free to use my best endeavours to get away."

"You speak boldly," the sheik said, "but you speak fairly. Do you give me your promise not to attempt to escape until after warning me?"

"Yes, I give you that promise, sheik."

"It is well," El Bakhat said gravely. "I know that you would not lie to me. After you have given me warning I shall know what to do." So saying he got up and walked away to his tent.

Three days later, as the caravan was halting at a well, Yussuf, who had gone out with the camels, ran in.

"There is a large body of men, some on foot and some on horses, approaching from the south."

"How far are they off?" the sheik asked as he leapt to his feet.

"Scarce half a mile," the negro replied.

"Then it is too late for flight," the sheik said, reseating himself; "they would be here long before we could saddle our camels. It is doubtless a body of the Mahdi's troops, but if they come from the south they will have heard nothing against us."