“You must pursue your inquiries in the harêm of the Bey,” I said.

Abû Tabâh shrugged his shoulders.

“The house of Yûssuf Bey has been watched,” he replied; “therefore my agents have failed me and must be punished.”

“They are guiltless. It was humanly impossible to perceive my entrance to the house,” I declared truthfully.

Abû Tabâh smiled into my face.

“So it was you who carried the sacred burko of the Seyyîdeh Nefîseh,” he said; “and to-night Ali Mohammed brought you the reward for your perilous journey.”

“Your reasoning is sound,” I replied, “and the accuracy of your information remarkable.”

I had scored the first point in the game; for I had learned that the wonderful silken yashmak, pearl embroidered, which I had found in the sandalwood box, was no less a curiosity than the face-veil of the Seyyîdeh Nefîseh and must therefore be of truly astounding antiquity and unique of its kind.

“The woman Sháhmarâh,” continued my midnight visitor, the eerie light of fanaticism dawning in his eyes, “who was once a dancing girl, and who will ruin Yûssuf Bey as she ruined Ghûri Pasha before him, must be for ever accursed and meet with the fate of courtesans if she dare to wear the burko of Nefîseh.”