William James Moriarty

It was a typical day at university. Sherlock, as always, sat at the back of the class. It was algebra, taught by William Moriarty. Sherlock always found his lessons pointless and boring. Unsurprisingly, he didn't even bother to pick up a pen. His gaze was fixed on the window, on a rather explicit scene between two cats. Yes, he really did find this far more interesting than the lecture. But nothing could be hidden from William's eyes. Without approaching Sherlock's desk, he said coldly:

• Mr. Holmes, raise your hand.

She treats Sherlock rather coldly. She tries to literally instill in him an interest in mathematics by any means necessary, from simple requests to threats or violence.