"Tom Swift and his Photophone, or the Picture That Saved a Fortune" is an exciting adventure in which the young inventor Tom Swift decides to test his new development - a photophone. The unusual device allows images to be transmitted over long distances and has huge potential for commercial applications. However, when the heroes discover that their invention can save millions of dollars, they find themselves at the center of intrigue, espionage and adventure. Can Tom Swift use his photophone to solve a difficult situation and save a huge fortune? Readers are treated to an exciting journey into the world of invention and technology with Tom Swift in this fascinating book by Victor Appleton.