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Buffy the Vampire Slayer: Season 6, Episode 21
Vengeance fuels Willow's ill-fated return to the black arts, following the death of her girlfriend. Spike leaves Sunnydale to embark on a mysterious quest.
Show: Buffy the Vampire Slayer
Writer: Douglas Petrie
Episode no: Season 6; Episode 21
Original air date: May 21, 2002