Tom Swift and the Electronic Hydolung, by Victor Appleton. Read by Mark Smith, music by Kevin MacLeod. Unabridged CD audiobook.
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Tom Swift works with the Navy to recover a Jupiter probe missile designed and built by Swift Enterprises when the Brungarians attempt to steal the probe and its scientific data. In a race against time, Tom invents several underwater devices to assist with the recovery and counter the threat of a stealth submarine developed by the Brungarians.