I do not know if you remember me but we met when you urged me to have my ghost friend fired from my place of business. Of course, I jest, but I was the bloke that had the ghost-friend tailing muggles for intel. You requested that I stop and I have. I promise! So please do not have me chased down by aurors, I would not do too well in Azkaban.

Or do. I am not one to tell others about how to live their lives.

I apologize. I momentarily forgot why I was writing to you in the first place.

The device we discussed as been built with its new parameters. It isn't perfect, it is very much in testing stages but I thought you might like to see it! My home address is as follows: [Wellingtonshire address]. It is rather hard to miss as I have the only rainbow-hued roofing on my street, believe it or not! 

Mind the gnomes don't escape through the front gates if you do come. My neighbor has been complaining about them like they should have a say on what goes on in my own yard. My gnomes only bite ankles of those they especially dislike.

Look forward to possibly receiving you.