Frank Reade instantly sprang forward. The explorer was in the pilot-house window.

He gripped a section of the partition, and with one finger pointed ahead down the pathway of electric light.

There was the whale coming like a meteor head on for the Dolphin.

It had evidently been to the extreme end of the passage, and turning, was now making a mad charge for the enemy in its path.

Fury personified was the silver monster, as with wide open jaws it came straight down for the craft.

But Frank quickly pressed the lever and set the engines in motion. It was just the contingency he wished.

He realized that the game was already bagged.

If the whale struck the ram of the Dolphin its fate would be sealed. This was beyond dispute.

On like a meteor came the monster.

There was a brief flash of silver in the glare of light, then a stunning shock.