He struck the camel on the flank with his stick, and rode slowly past the post-office and out into the desert, with his head sunk upon his breast.

I wonder whether he rode into a trap.

Who could this visitor have been whom he meets in the street of Tewfikieh, and who must come so secretly to Wadi Halfa?
What can have been his business with Durrance?
Important business, troublesome business--so much is evident.

And he did not come to transact it.

Was the whole thing a lure to which we have not the clue?
Like Colonel Dawson, I am afraid." There was a silence after he had finished, which Major Walters was the first to break.