““What’s up, Albert?” said the same balding wizard who had followed Harry out of the fireplace earlier. He looked nervous. “This lot need to leave before you seal the exits,” said Harry with all the authority he could muster. The group of wizards in front of him looked at one another. “We’ve been told to seal all exits and not let anyone--” “ Are you contradicting me ?” Harry blustered. “Would you like me to have your family tree examined, like I had Dirk Cresswell’s?” “Sorry!” gasped the balding wizard, backing away. “I didn’t mean nothing, Albert, but I thought…I thought they were in for questioning and…” “Their blood is pure,” said Harry, and his deep voice echoed impressively through the hall. “Purer than many of yours, I daresay. Off you go,” he boomed to the Muggle-borns, who scurried forward into the fireplaces and began to vanish in pairs.””