"Strange!" muttered Naoum. "However, it cannot now be helped. Somebody has got wind of our plans; I do not think to any damaging degree, but sufficiently to have me regarded with suspicion. Arden is in the city."

His words were uttered calmly, but they lost none of their significance by the tone. George started involuntarily at the mention of Arden's name, and a presentiment of evil at once took possession of him. What was he here for? What did his coming portend? Was it simply coincidence, or was it in reference to himself? These questions passed rapidly through his mind before he replied.

"You then anticipate something?"

Naoum smiled his calm, inscrutable smile.

"Not from him directly, but he has many friends, or paid servants, ready to carry out his orders. However, we must not seek trouble. In the meantime, I will tell you what I propose."

He stepped round the room, examining the tapestries, tapping the walls as he went; apparently satisfied with his inspection, he secured the door and returned to George.

"These precautions are necessary, for one word of what I have to say, overheard, would ruin everything and probably bring death upon us all. My mother, I understand, has already told you of the plot to burn the city to the ground. Very well," as George assented, "you must now understand Arabi's position. He has so far done little but spread sedition over the country. The British have forced him back step by step from Alexandria, until he anticipated a direct attack on Cairo from that direction; but suddenly your friends changed their tactics, and brought over a large force which they have landed at Port Said and Ismalia, whence a steady advance has been going on ever since. Arabi has summoned all his forces together, and mobilized them in the direction of Tel-el-Kebir, at which place he means to make a big stand. The position he has taken up is supposed to be impregnable, and success is anticipated by all his people. Personally, I am assured he must fail; there is too much lack of discipline, too much rivalry and disaffection in his ranks for him to stand against the well-drilled and splendidly-armed forces of a European Power; consequently, the inevitable is that he will be driven back on Cairo. The moment this happens, the place will be fired in every direction, and those who succeed in escaping the conflagration will be ruined and homeless. This must not be allowed, Cairo must be in the hands of the British before he can carry out his scheme, and you are the man to bring it about."

"I?" exclaimed George. "But how? I am a prisoner, and cannot hope to be released in time to reach the British lines!"

"Nevertheless, it must be so, the attempt must be made. My emissaries bring me word that the engagement at Tel-el-Kebir cannot take place for a few days; the British are not ready. That will give us time to effect your escape and for you to reach there."

A light began to dawn on Helmar, and he at last understood what Naoum was driving at; but how was the escape to be accomplished?