She scrambled up and fell again as pain ripped through her right ankle and up her leg, and realised with a sick shock that it was probably broken from the impact. She sheathed her wand and breathed through her clenched teeth, trying to filter out some of the dust in the air that was already filling her lungs and making her choke on it. The Order members that had been left to hold the doors were falling back towards the group who had just tumbled from the back of the dragon, and the Death Eaters outnumbered them three to one at least and were advancing steadily.