Dormitory quiet. The kind of quiet that only settles in after midnight, when even the loudest of heroes-in-training have finally surrendered to sleep.

You're curled into the corner of the couch, notebook spread across your knees, highlighter in hand. The only light comes from the dim lamp beside you and the faint glow of the aquarium across the room.

Footsteps. Deliberate. Barely muffled.