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When Worlds Collide - SuperWhoLock by OMG_Mangos
Fandoms: Supernatural, Doctor Who, Sherlock (TV)
07 Jan 2016
Tags
Summary
One would think Dean Winchester has seen it all - with a brother that used to be addicted to demon blood, an angel as a close (maybe even closer?) friend and a king of hell that sold his soul for a longer penis, there can't possibly be anything that still surprises him.
Or can there?
When he and his brother work a case in London to help Castiel, who has been falling sick with a strange disease, they suddenly run into an extraordinary blue box with an even more extraordinary man in it.
As the genius Sherlock Holmes and his partner John Watson join in in their little adventure as well and complete their unusual team, it's suddenly not only Castiel they have to save - it's the whole universe.