Aside from the signals coming from the party, the area had surprisingly little noise- not necessarily silent, but definitely less than the usual buzz. Most of the stuff coming off of the rink was comms, lights, some jury-rigged cameras and motion sensors, and miscellaneous half-working equipment like vending machines and arcade games. Nothing too fancy but hey, it wasn't exactly a corp arcology.
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There was some scuffling and muffled speech coming from within the building, something about spotlights, a fog machine, getting into postitions- looks like the kid's knock hadn't gone entirely unnoticed.