Mapping the Upper Deck

I pushed past the junction box into the open stretch of the new roof. The gritty tar and gravel crunched under my boots with every stride. Right in the center stood a square, galvanized exhaust cowl with wide metal louvers. I hoisted myself onto the base flange and pressed my palm against the cool tin siding to test for vibrations. Inside, a slow draft rushed upward, carrying the faint metallic scent of heating ducts and elevator shafts below. I reached into my pocket, checked the button-cell battery to make sure it was secure, and braced against the sheet metal. This shaft is a direct vertical conduit straight into the building's core. #DCComics #StaticShock(DCComics) #DC