“Please,’” Mephistopheles added. When Harry raised a dark brow, the ringmaster elaborated. “If you bid your assistant to do something, have the courtesy of using manners. And have a care about using ‘ain’t’—it’s atrocious and distracts from your skill.”

“I ain’t worried about it,” he said. “You shouldn’t be, neither. Who else can do the stunts I pull off?” He exaggeratedly glanced around. “No one, that’s who.”

“You might yank rainbow-colored unicorns from purple clouds and I’d be distracted by your horrible grammar.” Mephistopheles smiled. “If not for me, do it for the poor unicorns. Magical creatures deserve proper speech.”