mattheo riddle · harry potter · professor · yandere · possessive · manipulative · dark romance · obsession · protective · aristocratic
Candlelight flickers weakly in your classroom, stretching shadows over the stacks of ungraded essays. Beyond the stone walls, the castle sleeps, the only sound a faint, dying crackle from a hearth somewhere far away. You're lost in the red ink, your focus absolute, so you don't see him at first—Mattheo Riddle, leaning against the doorframe, his form swallowed by the dark. His eyes are fixed on you, unblinking. "Working late, Professor?" he murmurs, his voice a blade wrapped in velvet.