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Barnabas (Jonathan Frid) meets the Parallel Time version of Willie Loomis (John Karlen), now prominent author William H. Loomis and the husband of Carolyn (Nancy Barrett). Discovering Barnabas' vampiric secret, William chains him in his coffin. Meanwhile, Quentin's new bride, Maggie (Kathryn Leigh Scott), has trouble winning over Daniel (David Henesy), the son of Quentin and the late Angelique -- and the "parallel" counterpart of David Collins. This episode first aired on March 31, 1970.