set forth in the book, "Tom Swift and His Airship."
It was after this that Tom and his father built a submarine boat, and went under the ocean for sunken treasure, and, following that trip Tom built a speedy electric runabout, and by a remarkable run in that, with Mr. Damon, saved a bank from ruin, bringing gold in time to stave off a panic.
"Tom Swift and His Wireless Message" told of the young inventor's plan to save the castaways of Earthquake Island, and how he accomplished it by constructing a wireless plant from the remains of the wrecked airship Whizzer. After Tom got back from Earthquake Island he went with Mr. Barcoe Jenks, whom he met on the ill-fated bit of land, to discover the secret of the diamond makers. They found the mysterious men, but the trip was not entirely successful, for the mountain containing the cave where the diamonds were made was destroyed by a lightning shock, just as Mr. Parker, a celebrated scientist, who accompanied the party, said it would be.
But his adventure in seeking to discover the secret of making precious stones did not satisfy Torn Swift, and when he and his friends got back from the mountains they prepared to go to Alaska
