Supernatural/Horror Fics

[gaslightscribe]

Can anyone point me in the direction of supernatural themed fics of any description for either BBC Sherlock or ACD Canon? It can be something with a rational explanation as per Hound of the Baskervilles - or vampires, werewolves, ghosts, spooky atmosphere, AUs, crossovers, etc. Non-slash only, please!

Thanks in advance for any recs :)