Veritaserum

Draco watched everyone clamber around the girl in the middle of the floor, like she wasn't there and he could only watch with horror."Draco w-what the h-hell?" Blaise asked weakly, but he followed Draco's troubled gaze to the witch on the ground."Everyone's going to leave her here." He could only mutter, his eyes watering against the toxic fumes and his lungs screaming in protest.