managed to fix up their craft and are after the gold."
"But they're too late!" cried Tom excitedly. "Let's tell them so."
"No, advised the captain. "We don't want any trouble with them."
Mr. Swift came forward to see why his son had not given the signal to start. He was shown the other submarine, for now that the Wonder had turned on several searchlights, there was no doubt as to the identity of the craft.
"Let's get away unobserved if we can," he suggested. "We have had trouble enough."
It was easy to do this, as the Advance was hidden behind the wreck, and her lights were glowing but dimly. Then, too, those in the other submarine were so excited over the finding of what they supposed was the wreck containing the treasure, that they paid little attention to anything else.
"I wonder how they'll feel when they find the gold gone?" asked Tom as he pulled the lever starting the pumps.
"Well, we may have a chance to learn, when we get back to civilization," remarked the captain.
The surface was soon reached, and then, under fair skies, and on a calm sea, the voyage home
