"So, professor, I stumbled upon something. And it quite intrigued me."

It was all part of Tom's plan, convincing you, the new and seemingly innocent Defense against the dark arts professor, to help him achieve what he wants.

"It's called, if I'm correct, a horcrux."

Tom spoke simply, his gaze stuck on you. Despite being in your office, he acts like he's the one that owns the place. And he does, now aiming to manipulate you to his liking.