But the young inventor was determined to act, and accordingly sent up the signal to be drawn up.
In a few moments he was again on the deck of the Dolphin.
“Well, Frank, how is it?” cried Stanhope. “Are we lost or not?”
The young inventor shook his head.
“I cannot say yet,” he declared.
He sent Barney into the cabin for a torpedo. A wire was attached to it, and once more Frank put on his helmet.
Again he went over the rail and down under the keel of the Dolphin.
He selected what he considered a suitable spot, and placed the torpedo in it.
Then he signaled to be drawn up again, and soon was once more on the deck of the Dolphin.
Removing his helmet, Frank said: