Looking for a beta reader.

[classicdrogn]

Hmmm... Since you don't want to escalate things too fast, my suggestion would be for Zorian to decline her offer of a trip back, saying he'll use his own, properly constructed and bounded teleport, only to be told that for him to do so unlicensed and underage is strictly illegal in magical Britain regardless of how good he may be at it. If he's certain he doesn't want her assistance, the two of them can walk to Hogsmeade and take the floo from the Three Broomsticks to (insert some magical shop near their home here.) (Min is a bit put out with him, or she might offer to accompany them with loaner broomsticks and see them off through the pub, or prevail on Hagrid to hook up one of the carriages.) They either then do so, or Zorian quietly does his portal thing after giving her and himself a fig leaf of plausible deniability by getting out of sight.

If you need a business name to use, my favorite that I've never gotten an opportunity to insert is Gubbins and Bob's Sundries and Ironmongery, supplier of various household and business fixtures, fittings, and tools, founded 1895 by Gubbins Smith and Bob Plummer, reopened 1983 (or a similarly recent offset if you're not setting this in Harry's school years) after the last surviving member of the families graduated Hogwarts. ("gubbins and bobs" being slang for the sort of treasures one digs through in an attic or junk drawer, for that properly punny Harry Potter feel.) This would also be a source for Zorian to get such things for his inevitable investigation into the local magic, with the timeless bond of men over tools and hardware to break the ice and get him some references to places like potion suppliers and book shops that specialize in other aspects of the support trades. Of course, there's nothing to say you'd even need to mention the place ever again if it doesn't fit in, but it's there of you want to.

Edit: For even more fun, put it on a little side street called Odd's End along with a butcher shop, chandler, and bakery