The Secret of the Submarine
अपनी भाषा में प्लॉट जोड़ेंEpisode 1: Dr. Ralph Burke, a scientist and inventor, perfects an apparatus enabling submarine craft to remain underwater indefinitely without relying wholly upon compressed air stored in th... सभी पढ़ेंEpisode 1: Dr. Ralph Burke, a scientist and inventor, perfects an apparatus enabling submarine craft to remain underwater indefinitely without relying wholly upon compressed air stored in the boat. The discovery is perfected at the opening of the story and has been offered to the... सभी पढ़ेंEpisode 1: Dr. Ralph Burke, a scientist and inventor, perfects an apparatus enabling submarine craft to remain underwater indefinitely without relying wholly upon compressed air stored in the boat. The discovery is perfected at the opening of the story and has been offered to the United States government. Lieut. Jarvis Hope. U.S.N., is dispatched to witness a practica... सभी पढ़ें
