At last it was still, while the engines seemed to be trying to rack themselves to pieces in their terrific attempt to drive the ship against the Thing that held it back.
The captain watched with a set face, then ordered the engines reversed. There was an instant's pause, and the propellers took up their thrashing of the water again. For a moment it seemed that they would have some effect. The yacht shivered and moved slightly backward, but then stopped again with the same soft gentleness.
The seamen inspected the water all around the ship with lanterns lowered to the water's edge. They found nothing. A sounding line was thrown overboard, and sank for two hundred fathoms without reaching bottom.
The searchlight played endlessly over the water, trying to find some turmoil that might indicate the presence of a monster whose tentacles had fastened upon the ship, but without result. The surface of the water was like glass.
Again and again the engines struggled mightily to move the ship. Again and again the propellers beat the water at the stern into froth and foam, but never did the yacht move by as much as an inch.
The sea was calm and placid. The stars looked down from the moonless sky and were reflected by the still surface of the water.
The yacht struggled like a living thing to break free from the mysterious force that held her fast, while all about her there hung that faintly disgusting odor of slime from the depths of the sea, an indistinctly musky odor as of something unclean.
At last the wireless began to crackle a frantic appeal for help, giving the details of what was happening on board the yacht. Hardly had the message finished when the yacht began to rock slightly, as from a faint ground swell.
II.