“Many of your friends and acquaintances possess valuable jewels?”

“They do.”

“Then warn them—individually, in order to occasion no general alarm—to guard these with the utmost care.”

My surprise increased. “You alarm me,” I said. “Are there rogues in our midst?”

“No,” answered the imám, fixing his melancholy gaze upon my face; “so far as my knowledge bears me, there is but one, yet that one is worse than a host of others.”

“Do you mean that he is here—in the hotel?”

Abû Tabâh shrugged his slim shoulders.

“If I knew his exact whereabouts,” he replied, “there would be no occasion to fear him. All that I know is that he is in Cairo; and since many richly attired women of Europe and America will be here to-morrow night, of a surety Omar Ali Khân will be here also!”

I shook my head in perplexity.