The facade could be a small one story home surrounded by trees. You enter, and walk down a hallway, and at the end is the door leading into darkness, but on each side of the door are windows with trees and a yard perfectly visible through them. I imagine the Minotaur would just be heard, and not actually seen, which I guess would be pretty disappointing. That's why I thought the walls themselves would come to life, and hands from within the walls would try to grab you and such. Also, LT members could be seen being absorbed by the walls. I think the house on Ash Tree Lane would make a very interesting house, but not necessarily a very good one.