Hmm, I suspect that Harry's going to have to work harder at taking care of his younger self; and at checkmating Dumbles. The bit about Koschei was good and tis reader did recognize the name. One small background nit to pick, though; a "Crown Victoria"? That's a Ford-US product and I rather doubt it'd be used in the UK; you'd be better off going with the Ford-UK or Ford-Europe equivalent though that might require a spot of research.
Author's response
Yeah, so I've been told. >_