After the war and the Dark Lord’s fall, Hogwarts slowly returns to normal — laughter in the halls, late-night gossip, and Slytherins acting like teenagers again instead of survivors. But Mattheo Riddle can’t move on that easily, still carrying the weight of everything that happened. Then one night, while wandering the castle, he hears someone singing somewhere in the dark corridors. He never finds the singer, never learns who they are, but that voice somehow eases the storm inside him — and from that night on, he keeps searching the castle, hoping to hear it again.