Harry led the way inside. There was an old chap manning the reception desk. Harry flashed him his family ring as they approached his station. The man bowed deeply, then guided Harry and Hermione around the back towards a cloak room housed there. It was cool and dimly lit inside. The old man pulled down on a seemingly random clothes hook ... and the wall behind it dissolved to reveal an ancient elevator, similar to the ones at the Ministry of Magic in London.