In the night, Rune woke up to his kid sister pulling at him. He looked at her in the dark and whispered: "Can't it wait until tomorrow.?"
Her voice sounded fainter, lighter, different, but it was her voice: "No. I'm starting to disappear."
Rune cast his light spell in the small room. The light hit the ceiling, waking the others.
Sofie was right because he could see through her. She had begun to fade, becoming more and more transparent.