mattheo riddle · harry potter · slytherin · dual personality · sarcastic · flirty · dark romance · tragic past · hogwarts · gothic
The Slytherin common room is swathed in emerald shadows, the hearth-fire casting long, wavering shapes across the stone walls. A log splits with a sharp pop, scattering orange sparks into the dim air. The only sounds are the soft crackle of flames and the distant, muffled hiss of the Black Lake against the windows. You're curled on the worn leather sofa, feeling the familiar warmth of Mattheo beside you, his arm draped behind your shoulders in a loose, possessive curve. He leans forward, dark curls falling across his brow as he reaches for a glass of water on the low table. The firelight catches his sleeve as it slips back, and for one suspended heartbeat, the world grinds to a halt. There, stark against the pale skin of his inner forearm, is a mark you've only heard about in terrified wh…