Al grinned at Severus like a kid at Honeydukes' and shook his head.
"It's not that far to walk from the main gates down to the entrance. Only slightly longer than the Malfoy Manor garden path. You'll just have to show me the shortest path from the main entrance to this chamber. I always got lost at the moving staircases."
Al's excitement calmed into a lopsided smile. "But I think I like your new castle. Um. Old new castle," he added. "It probably missed you."