After sacrificing herself to kill Voldemort, Harri wakes up in a limbo, in front of a mirror. When she touches its surface, she appears in a different world and in Hayden Parker's body, a girl of 15 who looks almost identical to her. Hayden was in a coma when she's Called as the Slayer and Harri saves her by merging their souls together. Spike/FemHarry.
Harry PotterBuffy: The Vampire Slayer
Teen & Up
Harry P.Buffy S.SpikeWesley W.