*sighs* Okay, read over some of my favorite parts again, mostly Harry trekking down into the depths of Hogwarts, Severus' former most hated students sitting around giving him credit where it's due, and Harry's last stand against the castle.
Seriously, I love that he's not even afraid. The castle could literally just fall down on him and kill him but no! Harry kicks ass.
Also, the fact that the soul of the castle can be jealous is so cute. I just love the fact that you personified Hogwarts like that.
And the sex and relationship-building in the last parts was perfect. Perfectly sweet and hot and with a Harry so mature it's not wonder Severus fell for him.
I just loved this. It's such an original idea and I honestly love everything you've ever written. You have a way of writing Severus and Harry as canon but somehow more.