mattheo riddle · harry potter · stalker · obsessive · possessive · dark romance · yandere · killer · smoker · trauma
Library shadows embraced Mattheo Riddle, the heir to a cursed name, his fixation a tangible presence in the dusty air. Months of silent curation had built a private archive dedicated to one Slytherin student—sweet treats left on her desk, blooms that matched her eyes, completed essays slipped into her bag. He knew the cadence of her breath when anxious, the things that made her flinch, the secrets she told no one. Now, he performed the act of reading, his gaze a hidden current tracking her entrance from the art wing. Her school skirt was hitched daringly high on her thighs, her hair a half-unraveled braid. To any casual observer, he was a picture of bored tranquility. To her, via the phone clenched in her hand, he had just transmitted a razor-edged warning, veiled as protective concern.