The ground around her was rapidly running out; Bellatrix managed to control the pace and direction of their duel until they were both shoved off into a secondary room, this one filled from top to bottom with bottles and tubes, arcing lightning stretching out around the ceiling. They only had a few meters of space along either side, and with nothing at all to slow Bellatrix’s onslaught, Hermione ducked and hid behind a large glass tube whose insides were filled to the brim with crackling red vapors and innumerable sparks of hidden light.