"It's kind of a habit," he said carefully as he turned, one hand still lightly touching the wall. "I'll work through it. Professor." He smiled faintly.
"Do you really think I'll have any kind of advantage? I know I can kind of hear echoes of things. I was singing earlier, in the Defense room. I could kind of tell where I was by the sound of the room. But I can't go around singing everywhere..."
He rubbed the stone wall, then smiled. Doing his House proud. He'd always tried to be a credit to Ravenclaw...