I don’t think you ever drew the shed with the name “horkosworks” on it. all brass polish did was glance to the side. off panel. people might not realize that the shed is that building whose edge was barely shown with the doors on the tracks, that the trains come out of. generally artists will include a panel or half panel of what he’s looking at, if it’s important to know. like how when two rivals meet, there’s that lightning bolt cut between both of them as they glare at each other.
 
I’m still puzzled what happened to rainbow dash’s money. she never promised not to break the window on the signalbox. but why else would money be disappearing, hers in particular? the signalbox operator sure knew rainbow dash was due for something bad for doing that. and she’s probably the missing sister. but what exactly happened? can horkos be paid off not to take ponies away? is the thing about the king and queen a lie, and something else is doing this to everypony?