After Willow fails to resurrect Buffy, Buffy wakes in 1942 with amnesia. Sent to a London orphanage she meets a mysterious boy & learns the world is at war. Both worlds, the wizarding and the muggle one. Why is Grindelwald's henchman interested in her? What's a Slayer? Why is there a boggart living in her closet? Who are her family? Maybe her new friend Tom Riddle can help her?
The spirit of Hogwarts feels Harry needs protection. Dumbledore isn't doing a good enough job, so she calls on the only man she feels can get it right. Prophecies fear him, demons flee from him, and Slayers love him. Enter Xander Harris. Original story, Potter's Protector, is written by mjimeyg.