River's shape shifts, a reflection of the girl in front of her, searching for what pain she feels. "Am I corrupted?"

What does corrupted mean? The mark isn't poison, though it consumes, and change is inevitable. They form, they pass through the Veil, and then take new shape. It is the same with magic, with spirits, with all things.

Her hand lifts to her chest, where the mark would be. Behind her fingers, a light flickers. She's trying to puzzle this out, but better on her than Sina, better than touching her outright for now.