Demon!OC. Katie tried to help Sam while Dean was trapped in hell, but Sam lost her too. When she comes back with a demonic upgrade, is she really on their side? Sam feels guilty over her death, Dean doesn't trust her an inch, and Castiel thinks she's an abomination. Will they really be able to stop the apocalypse? Castiel/OC.
Rated: T - English - Supernatural/Romance - Chapters: 12 - Words: 24,223 - Reviews: 18 - Favs: 39 - Follows: 55 - Updated: 7h - Published: 2/6 - Sam W., Dean W., Castiel, OC