Over the initial objections of Elizabeth (Joan Bennett), Barnabas (Jonathan Frid) proceeds with his plans to throw a costume party. Victoria (Alexandra Moltke) agrees to help the guests choose their costumes, little suspecting that she is to be guest of honor -- if, indeed, joining the "Undead" can be considered an honor. Later, the ghost of Barnabas' sister, Sarah (Sharon Smyth), makes a return appearance. This episode first aired on July 19, 1967. ~ Hal Erickson, Rovi