Something prickled in the back of Harry’s mind and he paused mid-step. From the corner of his eye, he spotted a door materialising out of the wall. He looked around the hall, spotting the portrait of a barmy-looking wizard trying to teach trolls ballet, but there wasn’t anybody else here. I’m on the seventh floor? Curious, Harry opened the door and found himself inside a room that looked like it belonged in a Muggle gym than a magical castle. There were all sorts of equipment stations around the edges of the room, from dumbbell racks, cable machines, different weight stations that Harry had no name for and even some stationary bikes and treadmills. At the far end of the room opposite the door was a weapons rack similar to the one inside the Potter vault, but most of the room was dominated by a huge open space right in the middle that was padded.