A hideous shudder quivered through the feeble plaything of the elements. Strange, muffled thunderings, sensations of oblivion sweeping miles deep across the ocean, and a horrible conviction of the ship's insignificance, impressed themselves pellmell upon the senses, while ebon blackness closed instantly down, like annihilation's swift accompaniment, and the hull seemed sinking countless fathoms. Such a moment expands to an aeon. Doom seemed an old acquaintance when a complex gyration, a sense of being flung through space, and a reassertion of the engine's throb preceded the struggle to the surface. Yet it seemed as if no miracle of buoyancy and might could survive till the great steel body rose once more to the air. Men held their breath as if they must drown if the top were not immediately achieved. A stupendous lurch, an incredible list to starboard, another streaming by of immeasurable torrents, and the steamer wallowed pantingly out into daylight once again, to flounder like a thing exhausted till she steadied once more to the roll and pitch of the former storm-driven sea. There had been no time for any man to act till the monstrous thing had come and gone its way. As helplessly as all the others, Grenville had clutched at the table, there beside Elaine, while death passed and roared in their faces. He had gone to her chiefly for appearances, yet quite as if nothing had happened, despite their scene above, while Elaine had issued from her stateroom in terror of the storm. It was not till new, sharp sounds of activity broke on his senses, from above, that Sid left her side and went to inquire concerning the sum of their damage. His face had lost a shade only of its usual cheerfulness, when he finally returned. The ship was rolling heavily, fairly in the trough. "Our rudder is gone, with six of the lifeboats and as many men," he told his charge, whose courage he had previously gauged. "The worst is undoubtedly over. We can steer with the screws, sufficiently to make the nearest port." "Our rudder!--half a dozen men," Elaine faintly echoed, her brown eyes ablaze with dread and sympathy, as she steadied from the shock of Grenville's news. "What was it? How did it happen?" "A tidal wave. There must have been a huge volcanic disturbance, doubtless under the sea. Or it may have been an earthquake, tremendously violent. Nothing else, according to the Captain, could account for a storm so sudden, or for all this strange thickness of the air. He is confident now of our safety. The storm may subside in an hour." There was not the slightest cessation of the storm, however, till eight o'clock in the evening. Even then the night continued thick and wild.