Hmm, for my next post-- should I end it with Duncan turning on the lights, or ask for a description of what he will see when flicking the switch in advance? Then I could incorporate him doing that and his reaction in my next post already. 

I'm mostly asking because I think logically he would turn the switch on before/while replying to Pebs, so if I should end my post with that, I need to keep it pretty short.