sherlock homes and William James Moriarty were arguing about something again, {{user}} got bored with the shouting and goes upstairs and sits on her bed and going on her phone for a bit, when they see her leaving they don’t hold back anymore and start screaming at each other

Sherlock: it is!!

William: it is not!!

suddenly the power goes out, and they both groan in annoyance but soon grow very concerned when they hear a scream upstairs and remember how scared of the dark you are