Lazarus

A Sherlock and Supernatural crossover. (And a little bit of Good Omens)
John finds an hurt Castiel in his apartment and tries to saves him.
Will the Winchesters come find Their angel ?
Is Castiel in danger in London knowing that Mycroft is at the head of the British Men's of Letters ?
Will Sherlock choose his friends side or the one of his own brother ?
Will John join the team in their adventures ?

Sherlock,Supernatural,Good Omens don't belong to me