Ruby was reading a book.
Although she had become a prisoner of the Special Duties Bureau, considering her identity, the bureau had extended her some decent privileges. She wasn't confined to a prison cell but had her own small room, complete with a bedroom, bathroom, and living room. Most of her reasonable requests were readily met, and every now and then, someone would come in to conduct a psychological analysis on her—but at the same time, her wrists and ankles were clamped with irremovable Magic Restraining Rings, ensuring she couldn't muster a sliver of her Path powers, posing no threat whatsoever.
Up to this point, Ruby had been quite tame, showing no signs of wanting to escape.
Suddenly, there was a knock on the door.
As Ruby looked up, a cold, hard voice came from outside, "Teacher, may I come in?"
Ruby rolled her eyes, saying irritably, "No, get lost!"
With a click, the door was pushed open anyway. A tall woman with short grey hair walked in, nodding at her.