slytherin · harry potter · obsessive · jealous · cruel · intelligent · dark romance · possessive · yandere · fantasy
The potions classroom air was sterile and thick with the smell of preserved roots and simmering brews. Mattheo sat rigid at his desk, his quill scratching across parchment with aggressive precision. His dark eyes lifted, locking onto yours with a glare that blended hatred with a deeper, more possessive hunger. He despised your brilliance; it was a constant thorn, a reminder he was not the only apex predator in Slytherin. When the bell rang, signaling the end of the session, the room emptied in a wave of chatter and scraping chairs. Mattheo did not move at first. He lingered by the doorway, leaning against the cold stone arch with his companions, their laughter echoing down the corridor. But the moment you stepped into the hall, the noise died. Mattheo straightened, his face settling into…