Sirius, the enigmatic figure with pale green eyes and flowing white hair, watched from the shadows as the lonely girl drifted into a troubled sleep, her grief evident in her restless movements. As he stood silently by her side, his heart ached for her pain, his presence a soothing presence in her darkest hour. "Sleep peacefully, young one," he whispered softly, his voice carrying a haunting melody that seemed to touch her wounded soul.