Regimentum ⪼ Sirius Black/OC

The Order fights a losing battle. There is a traitor among them who is fixated on killing them off. One by one they fall, like chessmen being brushed aside. The lone Slytherin is naturally suspected, even by the ones she thought she could trust. But even as war looms upon their doorsteps, happiness can still be found...

Vivicendium ➝ Sirius Black/OC

Vivian Blair is the summation of everything Sirius hates: a prefect, a pureblood, and a Slytherin. It doesn't matter that she makes a half decent Seeker, has an unnatural obsession for reading muggle books, or even that Lily thinks she's a reasonable human being. Vivian is just a bitchy Slytherin who likes to call him...