Xion had been just passing through, trying to learn the layout of the train, but being attacked was not what she had expected. She was ready though, dropping into a defensive stance, Keyblade appearing in her hands.

She looked around, tense and prepared to MOVE, when the words caught up with her. Didn't see her? Well that was to be expected, wasn't it? She was used to not being seen, still preferred it, actually....

Xion looked like a youngish teen with a hood up to hide most of her face, wearing the basic hoodie and pants of her team without adornment. Except, you know, for the giant magical key in her hands.