Audiobooks by "Victor Appleton", page 2

This is the very first Tom Swift adventure. Tom Swift has a newly purchased motorcycle, which he is modifying with his own inventions. He volunteers to use his bike to carry his father's new turbine design plans to Albany, testing his motorcycle enhancements at the same time. Set...

Otherwise known as 'Under the Ocean for Sunken Treasure', is Volume 4 in the original Tom Swift novel series. Tom persuades his father to use his own submarine to hunt for treasure on a sunken ship. The book follows his adventures in this pursuit. - Summary by Claire Schreuder

Tanks are a new wartime technology, and as the US enters WWI, Tom uses his skills and his family's factory to secretly design and build a bigger, better tank, able to travel at twice the speed of British models, with heavier armor plating, ability to roll over wider trenches, and...