The final decision on the thief and location

Well, I remain stumped.

I don't think it's Draco, as I thought we were led to believe the thief was a vampire.

And, as we were led to think that it could be actually in the muggle world, vice HP world, that would leave out any place like the Malfoy Mansion, Hogsmeade, Diagon Alley, or Hogwarts (more specifically Room of Requirement).

And, as we need more specific than a country, less specific than a city, I'm thinking you need to know a region, so I'd say somewhere in the UK the mid regions around London? Scotland? That's a region. Great Britain?

I have no idea. But time is drawing near and we have to have some sort of answer, don't we?

So, I'll say, the region of Great Britain because it's not a city.

(Deep down, personally, if it were in the HP world, I'd say it's in the Room of Requirement because all roads out of Diagon Alley and Hogsmead join to Hogwarts in one way or another either beneath the Whomping Willow or through the Room of Requirement or the One-Eyed Witch Passage.)

There, I think I've covered everything and I'm as vague as the clues seem to me!