"Treachery!" he whispered, as if dazed. "What news have you to give to me?"

The leader of the native followers repeated his words in low tones, and again warned him to keep silent.

"I have watched the man of whom I speak for these two days past," he said. "And I have learnt that he is a traitor. Three times I have seen him conversing with natives when supposed to be watching the camels which were out grazing. Creeping towards him like a snake, I hid in a thorn-bush, and listened with all my ears, but they whispered to one another, so that I could not make out their words. This evening, after our zareba was formed, I followed him again, and saw him meet two men, who, by their dress, were the chiefs of a neighbouring tribe. He pointed to the camels, and counted their number upon his fingers. Then I saw them turn towards the entrance of this pass through which we are to go on the morrow."

"'We will meet you there,' cried one of the chiefs, 'and perhaps even attack before you enter. But my men do not like the darkness to fight in, and besides, in the confusion and alarm, the beasts might be slain or scattered. But we shall see; Allah will help us in this enterprise, for are not the followers in the zareba servants of the infidel?'

"That, master, is what I overheard," continued Ali, "and returning to the camp, I made plans to give you the warning; but there were many eyes watching me, and so I waited until now."

"You did wisely," said Jim quietly, now sitting bolt upright, and fully awake. "We'll get my comrade to join us, and then will decide what is to be done, for this is a serious matter, and, unless we take instant steps to protect ourselves, may lead to disaster."

Accordingly, he stretched out his hand and shook Tom gently, explaining to him as soon as he was awake the reason for his doing so.

"And now we have to decide what is to be done," he said. "If we sit here, and take no measures to protect ourselves, it is probable that this scoundrel who has betrayed us will induce the tribesmen to attack to-night. The moon is full, so that they would have every advantage, for our zareba lies bathed in the light, while they would be hidden in the crevices of the rocks."

"I don't see that we can do much else than awake our followers and warn the sentries to be alert," Tom whispered in reply. "If these fellows do attack us, we must lie down and answer their fire; but I fear that our camels will suffer heavily."

"Where are these men likely to come from?" asked Jim, suddenly, turning to Ali Kumar. "If they live in the highlands, and march upon us by way of the pass, I think we ought to arrange a trap for them. If it were carefully laid and proved successful, the lesson might be a warning to them, and teach them to leave us alone."