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Terror Island (1920)
Inventor Harry Harper (Harry Houdini) travels to the South Seas, where there is buried treasure belonging to a girl, Beverly West (Lila Lee). Naturally, others are after the loot, and Beverly's father (Fred Turner) is being held captive by cannibals until she returns to them with a pearl that belongs to one of their idols. The climax consists of Harper saving Beverly from a safe which has been lowered into the sea.