And the incident might have ended there had it not been brought into sharp prominence that evening. Mr. Tagg took the first watch, from eight o'clock to midnight. Under ordinary conditions, Royson, who was free until four in the morning, would have gone to his cabin and slept soundly. But, like many another who passes through the great canal for the first time, he could not resist the fascination of the ship's noiseless, almost stealthy, passage through the desert.

After supper, while enjoying a pipe before turning in, he went forward and stood behind the powerful electric lamp fitted in the bows to illumine the narrow water-lane which joins East and West. The broad shaft of light lent a solemn beauty to the bleak wastes on either hand. In front, the canal's silvery riband shimmered in magic life. Its nearer ripples formed a glittering corsage for the ship's tapered stem, and merged into a witches' way of blackness beyond. The red signal of a distant gare, or station, or the white gleam of an approaching vessel's masthead light, shone from the void like low-pitched stars. Overhead the sky was of deepest blue, its stupendous arch studded with stars of extraordinary radiance, while low on the west could be seen the paler sheen of departing day. At times his wondering eyes fell on some Arab encampment on the neighboring bank, where shrouded figures sat round a fire, and ghostly camels in the background raised ungainly heads and gazed at the ever-mysterious sight of the moving ship.

The marvelous scene was at once intimate and remote. Its distinguishable features had the sense of nearness and actuality of some piece of splendid stagecraft, yet he seemed to be peering not at the rigid outlines of time but rather into the vague, almost terrifying, depths of eternity. And it was a bewildering fact that this glimpse into the portals of the desert was no new thing to him. Though never before had his mortal eyes rested on the far-flung vista, he absorbed its soothing glamour with all the zest of one who came back to a familiar horizon after long sojourn in pent streets and tree-shrouded valleys.

Time and again he strove to shake off this eerie feeling, but it was not to be repelled. He fought against its dominance, and denounced its folly, yet his heart whispered that he was not mistaken, that the majestic silence conveyed some thrilling message which he could not understand. How long he stood there, and how utterly he had yielded to the strange prepossession of his dream, he scarce realized until he heard a soft voice close behind him.

"Is that you, Mr. Royson?" it said, and he was called back from the unknown to find Miss Fenshawe standing near.

"I beg your pardon," he stammered. "I was—so taken up with this—to me—most entrancing experience—"

"That you did not hear my fairy footsteps," she broke in, with a quiet laugh. "Do not apologize for that. I am wearing list slippers, so my ghostlike approach is easily accounted for. And I am really very greatly relieved at having found you at all. I was afraid you had left the ship without my knowledge."

"But how could that be possible, Miss Fenshawe?" he asked, startled out of his reverie by her peculiar phrase.

"Please don't speak so loudly," she said, dropping her voice almost to a whisper. "I have been looking for you during the past half hour. I came here twice, but you were so wrapped up in shadow that I failed to see you, and I was becoming quite anxious, because one of the men assured me you were not in your cabin."

Dick caught a flurried note in her utterance, a strained desire to avoid the semblance of that anxiety which she had just admitted. It puzzled him quite as much as the curious sense of familiarity with his surroundings, a sense which the girl's unexpected appearance had by no means dispelled. And he was oddly conscious of a breaking away of the social barrier of whose existence she, at least, must have been convinced. The mere whispering together in this lonely part of the ship might account for it, to some extent, so he braced himself for the effort to restore her self-control.