Xion's head shot up when the door burst open, eyes wide as she stared in slight alarm at the person who ran through it.

"Riku?" she sounded surprised, though the expression on his face was a fairly big indicator that something was not right. "What..." She bit her lip, looking to Xehanort and back again. "...what's wrong?"

Had she misjudged the situation somehow? Part of her wanted to explain, but if she was right and there really was something wrong, she didn't want him to have to take the fall. He literally would have had no idea.