"I think we are all right now," he said presently.
"Very well," spoke the inventor, his hand on a lever, "when you say the word, I'll discharge the torpedoes."
"You might as well do it right now," was the response.
The inventor, with hands that shook, swung the lever back.
There was a hissing sound and a slight tremor as the compressed air shot the torpedoes from the tubes. Less than a second later, simultaneously it seemed, the submarine was rocked and swayed by a terrific convulsion. The boys and their elders were thrown right and left with a force that almost knocked them senseless.
It was but a few moments after the explosion of the two torpedoes that Ensign Hargreaves uttered a shout that thrilled them all.
"We're rising!" he cried. "My plan succeeded after all!"
"I think that we ought to give thanks to Providence," said Mr. Barr reverently. "As the ensign has said, the plan succeeded, but it was taking one chance in a thousand. Had that cliff not been shaken so as to release us, we might have perished miserably and left our fate a mystery."
The boys were in the conning tower by the conclusion of Mr. Barr's words. The barograph showed them to be rising a hundred feet a minute. No words were exchanged between the two young Scouts, but each grasped the other's hand in a firm grip and gazed into the other's eyes. There was no necessity of speech. Both realized that they had passed through the gravest peril that even they had experienced in all their adventurous lives.
When the Peacemaker reached the surface once more, the storm had subsided. With their hearts full of deep gratitude for the miraculous chance that had saved their lives, her occupants headed the speedy diving craft back for the island at top speed. The Peacemaker had been through the supreme test and had not been found lacking.