He became so deeply buried in his plans that he had entirely forgotten where he was, when the rattle of the reed curtain roused him and, starting from his dream, he found the great caliph entering.

Reverently touching his forehead to the floor, Kanana remained prostrate until the caliph was seated. Then he rose and stood leaning upon his staff while the old ruler silently surveyed him. It seemed to Kanana that his very heart was being searched by those grave and piercing eyes.

Upon the shoulders of the Caliph Omar rested the fate of Islam for future ages; his word was law wherever Mohammed was revered. He could have little time to waste upon a shepherd boy; yet he sat for a long while, silently looking at Kanana. When he spoke, it was only to bid him repeat, at greater length, the story of how he came by the letter and how he brought it to Mecca.

"My son," he said, when Kanana had finished, "thou hast done what many a brave man would not have ventured to attempt. Ask what reward thou wilt of me."

"I would have the blessing of the Caliph Omar," Kanana replied.

"That thou shall have, my son; and camels, or sheep, or gold. Ask what thou wilt."

"I have no use for anything. I ask thy blessing, my father, and thy word to bid me go."

"Thou art a strange lad," replied the caliph. "Thou art like, and yet unlike the Terror of the Desert. I command thee, my son, say what I can best do for thee."

"Give me thy blessing, then let me go, my father," repeated Kanana, kneeling. "More than that, if I took it, I should leave at thy gate."

Omar smiled gravely at the boy's obstinacy.