The words have their intended effect and if Charles looked wide eyed before, he does so even more now as his worry increases and seeps into his demeanor enough to add a hint of that worry in his voice that he hadn't allowed to show before.

"My friend has no reason to cause harm to you or the city. We both arrived here from the middle of a plane crash," he's assuming about Erik here, but reasons that it's a good guess. "That is a strenuous ordeal as it is, and then to come from that only to be locked in a room? I would expected that a displeased reaction is perfectly understandable."