And taking them he signed the instructions, and the signature was the same as that on the safeguard on the gate at Therapia.

"There—keep it well; for when thou gettest to Constantinople, thou wilt become a Christian." He laughed again. "Mirza—the Mirza Mahommed swore by, and appointed keeper of his heart's secret—he a Christian! This will shift the sin of the apostasy to me."

Mirza took the paper.

"I have not chosen to write of the other matter. In what should it be written, if at all, except in my blood—so close is it to me?... These are the things I expect of thee. Art thou listening? She shall be to thee as thine eye. Advise me of her health, and where she goes; with whom she consorts; what she does and says; save her from harm: does one speak ill of her, kill him, only do it in my name—and forget not, O my Saladin!—as thou hopest a garden and a couch in Paradise—forget not that in Constantinople, when I come, I am to receive her from thy hand peerless in all things as I left her to-day.... Thou hast my will all told. I will send money to thy room to-night, and thou wilt leave to-night, lest, being seen making ready in the morning, some idiot pursue thee with his wonder.... As thou art to be my other self, be it royally. Kings never account to themselves.... Thou wantest now nothing but this signet."

From his breast he drew a large ring, its emerald setting graven with the signature at the bottom of the instructions, and gave it to him.

"Is there a Pacha or a Begler-bey, Governor of a city or a province, property of my father, who refuseth thy demand after showing him this, report him, and Shintan will be more tolerable unto him than I, when I have my own. It is all said. Go now.... We will speak of rewards when next we meet.... Or stay! Thou art to communicate by way of this Castle, and for that I will despatch a man to thee in Constantinople. Remember—for every word thou sendest me of the city, I look for two of her.... Here is my hand." Mirza kissed it, and departed.

CHAPTER IV

THE EMIR IN ITALY

We know now who Count Corti is, and the objects of his coming to Constantinople—that he is a secret agent of Mahommed—that, summed up in the fewest words, his business is to keep the city in observation, and furnish reports which will be useful to his master in the preparation the latter is making for its conquest. We also know he is charged with very peculiar duties respecting the Princess Irene.