"He knows." She shouted, so Shacklebolt would hear her over the sounds of the battle, the storm and the swooshing wings. She could feel him curse rather than hear it and then he shot a flare from the tip of his wand, a sliver of white that shot high in the air before exploding into a bizarrely beautiful array of fireworks. It was the signal that fighting would be futile and that they needed to get to safety. He didn’t wait to see if the others were heeding his command, just like they had agreed upon during the briefing before.