Or perhaps in Slytherin,

Where you'll make real friends.

Those cunning folk use any means

to achieve their ends.

Sorting Hat, Book 1

Enslaved to No One

As I gaze into the piercing green eyes that look so much like Lily's that I can pretend for my own peace of mind that they are indeed hers, I know that Lily would be proud of me. She would be proud of me not because I embodied the bravery of a Gryffindor, but the cunning and the determination of a Slytherin.

I am the spy who might make it possible for Potter to defeat the Dark Lord once and for all. That knowledge makes me fiercely proud, since I realize quite clearly that nobody could have performed as well as I did. After all, no one is more qualified than a serpent to slink around unnoticed, biting foes in the heel. Moreover, nobody but a snake could infiltrate a serpent's lair.

Nobody could have done a better job than I did, and I, Severus Snape, will die enslaved to no one, because Slytherins are much too ambitious and too prideful to die in chains.