The very fact that he had let me sleep on seemed to me proof that he intended going forward.
Doubtless, he would depend on me to stand guard during the night.

So I reasoned it.

And I also thought it probable he had told the Turk in which direction to lead, seeing that the Turk doubtless knew more of that countryside than any.

Ahead of us was all Asia and behind us was the sea.

Who was I that I should know the way?
But by telling the Turk to lead on, I could impose on him responsibility for possible error, and myself gain more time to think.