The Imperial troops were in fact masters of the secret passage; and they had begun the attack on the Serapeum in earnest. It was serious--but all was not yet lost; and in this fateful hour Olympius and Memnon proved their mettle. The high-priest commanded that the great stone trap-doors should be dropped into their places, and that the bridges across the gulfs, in the underground rooms reserved for the initiated, should be destroyed; and this there was yet time to do, for the soldiers had not yet ventured into those mysterious corridors, where there could not fail to be traps and men in ambush. Memnon meanwhile had hurried to the spot where the battering-ram had by this time dealt a second blow, shouting as he went to every man who was not a coward to follow him. Karnis, Orpheus and the rest of the high-priest's guests obeyed his call and gathered round him; he commanded that everything portable should be brought out of the temple to be built into a barricade behind the point of attack, and that neither the most precious and beautiful statues, nor the brass and marble stelae and altar-slabs should be spared. Screened by this barricade, and armed with lances and bows--of which there were plenty at hand--he proposed, when the breach was made, to check the further advance of the foe. He was not ill-pleased that the only way of escape was cut off; and as soon as he had seen the statues dragged from their pedestals, the altar- stones removed from the sacred places they had filled for half a century, benches and jars piled together and a stone barricade thus fairly advanced towards completion, he drafted off a small force for the defences on the roof. There was no escape now; and many a one who, to the very last, had hoped to find himself free, mounted the stairs reluctantly, because he would there be more immediately in the face of the foe than when defending the breach. Olympius distributed weapons, and went from one to another, speaking words of encouragement; presently he found Gorgo who, with the bereaved widow, was still sitting at the foot of the statue of justice. He told her that her father was ill, and desired a servant to show her the way to his private room, that she might help the leech in attending on him. Berenice could not be induced to stir; she longed only for the end and was persuaded that it could not be far off. She listened eagerly to the blows of the battering-engine; each one sounded to her like a shock to the very structure of the universe. Another--and another--and at last the ancient masonry must give way and the grave that had already opened for her husband and her son would yawn to swallow her up with her sorrows. She shuddered and drew her hood over her face to screen it from the sun which now began to shine in. Its light was a grievance to her; she had hoped never to see another day.