Beth really wanted to know, and her mouth opened to protest Justin not telling her when she realized that - no, okay she really didn't want to know at all. It was absolutely really, really bad, and she wasn't like Gabby or Doreen and wanted to go looking for trouble all the time either. Still, she retorted with "That's not reassuring!" as if it was Justin's job to reassure her now. Which, admittedly he was already, it was him that had gotten her out of the rec room when she froze so he was already doing the job as it was.
When they turned the corner and got to the roadblock Beth threw up her free hand in exasperation. "Did Artemisia ink the stairs?" That would slow it down, they'd be really slippery.