An old American Revolutionary War document reveals the final resting place of the Isabella, a Spanish ship laden with Incan gold and sunk by pirates in the treacherous waters of the East Indies. Using his incredible new submarine ship, the Sea Serpent, Frank Reade Junior plans to recover the gold, an easy feat for a world-class genius. But little does he know that saboteurs have strapped dynamite to his submarine and plan to salvage the gold for themselves!In this classic 1893 science fiction tale, Cuban-American author Luis Senarens brings us another thrilling adventure of the 19th Century's most daring kid inventor, boy genius Frank Reade Junior!