"Angus!" Nick smiled. "I remember him well, yes! I wonder then if you, too, would have been sorted into Gryffindor!" The thought warmed him. "I am sure there are others who know the castle better, but there are few these days who speak to students, or servants. I guess I have always been a particularly social ghost. Especially when it came to Gryffindors. What did you want to know?"