Frank's plan worked well. He had withheld the order to stop and back her till the last moment, so that Tim should have no time to change the course of the Thunderbolt, and thus derange his plan. As it was, it was a very narrow escape, and nothing but the promptness with which the order was executed averted the impending catastrophe.

The Thunderbolt passed across the course of the Zephyr, not three feet from her bow. Tim saw that he was foiled; and enraged at his disappointment, he aimed a blow at Tony with the long stick, as his boat shot past.

Tony was beyond his reach; he leaned over the gunwale of the boat in a vain attempt to accomplish his malignant purpose. But in doing so, he lost his foothold, and was precipitated head foremost into the lake!

He disappeared beneath the dark surface of the deep water, and his boat passed over the spot. The Zephyr, impelled backward by the vigorous strokes of her crew, was several rods from the place before the club fully realized the nature of the unfortunate occurrence.

The Thunderbolt was much nearer the place where Tim had disappeared than the Zephyr; but her crew seemed to be utterly paralyzed by the event, and unable to render the slightest assistance. One of the Bunkers took the helm, and endeavored to rally his companions; but in their confusion they were incapable of handling their oars; some pulled one way, and some another, and instead of urging the boat ahead, they only turned it round in a circle.

"Way enough!" shouted Frank, as soon as he discovered the accident. "Give way! Tim Bunker has fallen overboard!"

The crew, though affected to some extent as the Bunkers were, used their oars with skill and energy. The presence of mind which Frank displayed inspired them with courage, and the Zephyr darted forward towards the spot where Tim had gone down.

"There he is ahead!" exclaimed Frank, with frantic earnestness; "pull with all your might!"

"Help! Save me!" cried Tim, as he rose to the surface.

The boats were both several rods distant from him. He did not swim, but seemed to struggle with all his strength, apparently with a spasmodic effort, as though he had entirely lost his self-control.