“There lies the city I began to build while Alexander was yet alive,” he said, pointing backwards over his shoulder. “I was a famous architect in those days, and rich men sent me their sons to learn from me. But among all my pupils the best, the most brilliant, was Sostratus. He came to me when he was but a lad, and I early foretold for him a great career. I loved him dearly, and he was to me like a son. His native land was Greece, and, though he spent some years with me during the building of Alexandria, he returned more than once to his home, and on one of these visits fell deeply in love with a beautiful Grecian maiden.

“Never shall I forget the happiness of Sostratus, when he told me that the maiden, with her parents, was coming to Alexandria, where the marriage was to be celebrated. All was prepared for the bride, and on the appointed day, she set sail to cross the stretch of sea between Greece and Alexandria. But, alas, the weather, till then calm and peaceful, suddenly changed. A great storm arose, and the ship, when it came into sight, though it held bravely on, was tossed like a cockle-shell upon the waters.

“Now this bay of Alexandria is difficult of navigation, and in the darkness, full of danger. Night came on; there was no friendly beacon fire to show the way, and presently we, who were gathered here on this very spot, heard the shouts and cries of drowning men. Powerless to help, we waited in despair for daybreak, only to see the waters strewn with wreckage. Close to land, the good ship, with all on board, had gone down for lack of a light to show the captain where lay the treacherous rocks.

“Sostratus was wild with grief, from which, as time went on, I strove in vain to rouse him. Nothing I could say or do would comfort him, till at last, when I was ill and near to death, I called him to my bedside and urged him not to waste his life in useless idle despair.

“‘Build something,’ said I, ‘which shall be at once a monument to the memory of your bride, and of use to the living. So shall you not have passed through this your present life in vain.’

“‘What if I should build a light-tower?’ he asked presently. ‘Something that shall serve as a beacon and a warning to sailors? Already has the thought of such a tower begun to take shape in my mind, and now, O master, I swear to thee that I will not rest till such a building arises, for by such means, grief such as I have endured may be spared to others.’

“With that he began to discuss with me how such a tower, the first of its kind, could be constructed so that a light should stream constantly from its summit during the darkness of the night. And I, seeing him roused from his grief and ready for a new interest, passed some days later, happily from that life. All that follows, I learnt long afterwards when once more I returned to this earth.

“Even before my own death, Alexander the Great had passed away, and the world he had conquered was being divided amongst the generals who had fought under his command. This land of Egypt, with Alexandria as its port, fell to one of them—a man whose name was Ptolemy. (He it was who helped the Rhodians against Demetrius in the famous siege),” he added, turning with a smile to Rachel.

“And you were Cleon then—not Dinocrates,” she exclaimed quickly. “You remember I told you about that siege, Diana?”