MrMegelheimer or whatever his name is will attempt to trick you, I suggest you steer clear of him
If someone wants to join me in my marsh apothecary that'd be dandy, I'd be happy to share the (currently unfinished) building and the 128x128 square of protection, maybe then I could actually feel safe making a path to the place and setting up shop
Otherwise I might as well just tear the place down and rebuild it in a pre-existing town, though I really wanted to keep the theme of "potion shop in the middle of a swamp"
Edit: Come on, who
wouldn't want to live in this house

You'll get a whole floor to yourself (the one with the brick/wool walls)