Lost in the Atlantic Valley; Or, Frank Reade, Jr., and His Wonder, the "Dart"

"Lost in the Atlantic Valley; Or, Frank Reade, Jr., and His Wonder, the 'Dart'" by Luis Senarens is an adventure story set in the early 1900s, where young inventor Frank Reade, Jr., known for his family's incredible machines, sets off on a daring underwater voyage to the unexplored Atlantic Valley. Accompanied by a professor, Captain Bell, and his steadfast comrades Pomp and Barney, Frank pilots his newest creation, the Dart submarine, into the ocean's depths, embarking on a quest for lost riches and scientific discovery. As they navigate the mysteries of the deep, they encounter strange creatures and perilous situations, all while dealing with the unknown that comes with exploring the underwater world.