Tom Swift's father has been working diligently on a secret project, which he reveals at the beginning of the book as a submarine. With the submarine, named the Advance, he plans to enter a contest for a government prize of $50,000. While in New Jersey to launch the submarine, Tom reads in a newspaper that a ship named the Boldero sank off the coast of Uruguay during a storm, taking down with it the sum of $300,000 in gold bullion. Tom persuades his father to pursue this treasure as opposed to competing for the government prize. While picking up a hired sea captain, Tom's plans are overheard by a contestant in the government contest, and a rivalry for the treasure begins. The other submarine, named the Wonder, soon sets off to follow Tom and his crew after they embark on their journey.

The young hero seeks treasure and finds death-defying adventures on his submarine.

Tom Swift and His Submarine Boat; Or, Under the Ocean for Sunken Treasure By, Victor Appleton

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Tom Swift's father has been hard at work on a secret project. At the beginning of the book, he revealed that it was a submarine. He plans to take a submarine called the Advance to enter a competition to compete for a government prize of $ 50,000. When Tom launched a submarine in New Jersey, he read in the newspaper that a ship named Boldero sank off the coast of Uruguay in a storm and took $ 300,000 worth of gold bars. Tom convinced his father to seek wealth rather than compete for government bonuses.

Tom Swift's father has completed an experimental submarine design that he expects to test in an upcoming government sponsored race and trial. However, when news surfaces of a ship, which was full of gold, that sank off the coast of Uruguay, Tom and his father quickly change course. The treasure lies on the bed of the ocean, three miles below the surface, and only the Swift submarine can make the dive - or so they thought! Soon a rival emerges from the inky depths and a battle ensues that puts the crew in peril of sinking beneath the waves forever.

Reprint of the adventure novel originally published in 1910.