" Yegor,” he called loudly as if the man was hard of hearing. “You must give the boy a tour of the lab.”

“Yes, master,” Yegor replied.

The doctor stopped and turned to his servant. “Yegor, how many times must I say it? You are to call me Doctor, not master.”

“Of course, Doctor Master. "

― Colleen Houck , The Lantern's Ember