[quote=@Vertigo]
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.
[/quote]

I'd say go with the second one just to keep the flow going. It makes sense for Duncan to reply to what Pebs is saying before seeing the room.