There was a light that flashed in every room whenever there was someone at the door, placed so that he could always see it. He'd been busy making new lessons for his students when he saw it and frowned. He didn't expect his mortal friends until later on, but perhaps one of them needed something.
He set his pen down and walked to the door, surprised to see it was his old teacher at the other side. The rivalry between them had always inspired him to be greater, and he'd always be thankful for that much.
With a grin he grabbed a notepad, as with his books something that stayed with him, before extending his hand in a greeting and a motion to come inside. '