Some idle ideas for letsdrawsherlock: Priest!lock
But serious plotbunny business: Sherlock would totally be able to read your every sin and has grown to disgusted by people (for their sins, for their wanting redemption to be simple and easy). Enter John, who has grown steadily more depressed after returning to England and seeks solace in a church. Sherlock sees in John a man suffering out of proportion for this sins. Why would that be?
John’s limp is caused by a demon he brought back from Afghanistan
Wow, that’s the best new AU prompt I’ve seen in a while.