Underground Marvels Season 1 Episode 4 The Renegade's Lair 2019
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A strange underground system known as the Black Cave was home to an infamous nobleman on the run from the law; today, experts investigate the secrets he left here to discover new parts of this mysterious network.
- Released: 2019-11-07
- Runtime: 45 minutes
- Genre: Documentary
- Stars:
- Director:
