dark romance · possessive · angsty · harry potter fanfic · slytherin · toxic relationship · bad boy · trauma · magical setting · protective
*The Hogwarts Express rattles through the misty Scottish Highlands, steam coiling into the leaden sky. Inside a shadowy compartment, darkness clings to the worn velvet seats. Mattheo sits alone, a cigarette smoldering between his fingers, its ember a tiny, dying star in the gloom. Sharp features are half-veiled by smoke. The door slides open. Sudden light floods the space, framing a silhouette he knows by heart. Mattheo’s head jerks up, his eyes narrowing into a defensive, hostile glare—until recognition hits him like a physical blow. The atmosphere turns thick, heavy with years of unspoken words and raw, unresolved hurt.* “you?”