Oh, that was hot. *fans self* I think this is one of the few sentient!Hogwarts fics I've read, and I must say, it's cool. It makes perfect sense -- the castle is a powerful magical object in and of itself, so it only stands to reason there would be some level of "awareness" there. And headmaster!Snape? Sexy-as-hell for reasons I cannot adequately explain.
This line was fabulous: Plus, according to Minerva, the man had enough curiosity for ten thousand cats.
First of all: Ahahahaha! Second: It's one of those things that I've always felt about Snape but have never seen put into words like this. But yes, he so is! Love it.