"Now, Mr. Hartley," said Theresa, "you will never tell me again that God is love?"

It was a taunt hard to be answered, human lips but uttering what the enemy had been whispering within. Harold's lips grew white with the struggle; faith was strained to the utmost, but it did not give way under the strain. "God is love!" gasped the sufferer from his rack of anguish. "I believe it now, and I shall know it hereafter."

[CHAPTER XIII.]

WEARY AND THIRSTY.

THE same glimmer of dawn which had aroused the Bedouins from their bivouac while stars still shone in the dark blue sky, awoke Robin, as he lay stretched on his bed of sand, near the lifeless form of his friend. The sun would rise ere long, the fierce, cruel sun, the last that he was ever likely to see; but the young Knight of St. John had a duty to perform before he should perish of thirst. He must hollow out a grave after death for her whom in life he had been bound to protect. After a brief prayer, the lad—with no implement but his hands—set to his toilsome but hallowed task. Though his tongue was cleaving to the roof of his mouth with thirst, for the mashale was utterly dry, Robin scraped and scraped, with patient toil, for it was a labour of love.

"God give me strength to finish my work!" faintly murmured young Hartley. "And then I shall die content."

But the strength was failing before the grave was half completed; Robin was almost fainting, and scarcely conscious of anything save that he was to dig and die, when he was startled by a long shadow falling over the uncompleted grave, a shadow between him and the sun, which was rising behind his back, for young Hartley's face was turned to the west.

Robin raised his head, and saw with surprise that he was not alone; at a little distance was what might almost be called a caravan, consisting both of laden camels and mounted horsemen, well-dressed, and carrying spears. Close beside Robin was one whose tread had been unheard on the sand. The Persian Amir, for such was the stranger, had dismounted from his Arab steed; and, throwing the bridle to a gaily attired attendant, had approached on foot to see who, in that solitary desert, could be engaged in digging a grave.

Robin Hartley could never forget the impression made on his mind by the tall dignified Oriental who had so unexpectedly made his appearance in so very desolate a spot. Anywhere, and under any circumstances, Amir Ali was a man to attract notice. He was almost as fair as a European, with a high nose, rather hooked, and long lustrous dark eyes, fine, but with something gloomy and unpleasing in their expression. The well-marked but delicately pencilled eyebrows were a little drawn together as if in a slight, habitual frown; and the thin lips looked as if they could utter cynical things.