"Then a moulvie whom I met once did not lie to me. He said that seven little mounds which stand near that well had been known to vomit ashes and flame: thus, they came to be called the Seven-branched Candlestick of Moses. I suppose the well took the prophet's name in that way. Who knows?" Royson had learnt of late how to school his face. Long practise under the witchery of Irene's eyes and Mrs. Haxton's ceaseless scrutiny enabled him now to conceal the lightning flash of inspiration that fired his intelligence. An old caravan road from the sea, a road that led to the Nile, with its fourth stopping-place made notable by seven tiny cones of an extinct volcano--surely that had the ring of actuality about it! Von Kerber had confessed to altering figures and distances in the papyrus--was this an instance?--were the "hills" they sought not five but seven in number? What an amazing thing it would be if this gaunt old sheikh held the clue to the burial-place of the treasure! It must have been on the tip of his tongue ever since they met him, yet the knowledge was withheld, solely on account of von Kerber's secretive methods. Had he told Abdur Kad'r that he was searching for an oasis sheltered by seven hills it was almost quite certain that the Well of Moses would at least have been mentioned as the only locality offering a remote resemblance to that which he sought. Somehow, Dick felt that he had stumbled on to the truth. Though tingling with excitement, he managed to control his voice. "You say it is four marches from here to the sea?" he asked. "Five, Effendi. There are four wells, but each is thirty or thirty-five kilometers from the other. At one time, I have been told, many _kafilas_ came that way, but the trade was killed by goods being carried in ships to other points, while it is recorded among my people that the curse of Allah fell on the land, and blighted it, and the trees died, and the streams dried up, until it became as you now see it." Dick lit a fresh cigarette, and blew a great cloud of smoke before his eyes, lest the observant Arab should read the thoughts that made them glisten. "Let us suppose," he said slowly, "that Fenshawe Effendi decided to make for the sea by that shorter road, there would be no difficulty in doing it?" "Difficulty!" re-echoed the sheikh, "it might cost us many lives. A few men, leading spare camels with water-bags, might get through in safety, but it would be madness to attempt it with a big caravan. By the Prophet's beard, I did not like the prospect of this present march, though I knew there was water and food in plenty at Suleiman's Well. What, then, would happen if we found every well on the eastern road dry as a lime-kiln?" "Yet you have been that way, you say?" "Once, when I was young. But we were only a few Arabs, with a long string of camels." "Did you find water?" "_Malish_--I have forgotten. It is so long ago."