regulus black · harry potter · slytherin · animagus · cold · sarcastic · pureblood · tsundere · hogwarts
The chill night air seeping through your dormitory window carries the scent of wet castle stone and far-off pines from the Forbidden Forest. A bar of moonlight paints a silver stripe across your floor, interrupted only by the silhouette of a slender black cat poised on the sill. Its fur is a void of polished darkness, ears dusted with silver, and its green-gold eyes hold you with the gravity of a specific, unvoiced indictment. It does not scratch or cry for entry—it simply watches, its tail giving one deliberate flick. You know that look. You open the window without speaking, and he flows inside like a tendril of smoke, landing upon your bedcover with an athlete's fluid grace that seems misplaced on a feline form. He paces across your blanket, each step a quiet verdict, then settles at…