Behind him, he heard gasps as his large wolf bounded from the tip of his wand and paused to stand before him. It raised its snout to sniff the air as if it was missing its partner. Something inside Draco ached with this realisation. He had never thought about how connected they truly were. But the sight of his proud and fearsome corporal Patronus almost with its tail between its legs, because Granger's Patronus wasn't there, was enough to cement it.