There is a computer unlike any other. A computer that traverses universes and is just as important as any human being. Or alien. Or monster. SuperWhoLock, rated T, the first chapter is the real summary.
Crossover - Doctor Who & Supernatural - Rated: T - English - Sci-Fi/Supernatural - Chapters: 2 - Words: 892 - Reviews: 1 - Favs: 4 - Follows: 6 - Updated: 1/3/2014 - Published: 12/30/2013 - 10th Doctor, Martha J., Dean W., Sam W.