An eccentric scientist named Harper lives in a haunted mansion with all its problems: a secret laboratory, mysterious walls, a mysterious butler and greedy relatives with unusual talents. When Harper appears to be murdered, Charlie Chan enlists the help of an uninvited...
An eccentric scientist named Harper lives in a haunted mansion with all its problems: a secret laboratory, mysterious walls, a mysterious butler and greedy relatives with unusual talents. When Harper appears to be murdered, Charlie Chan enlists the help of an uninvited...
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