Caiaphas simply nodded as they informed him what the terrain was like, having not considered it a reasonable use of his time. Instead, he simply altered his briefing to point out that while everyone got out THIS time, next time they might not be so lucky. His suggestion for that was add basic cave exploration and navigation training to the mandatory armed training all the male dwarves got and some of the women as well. Done with the report, and with everything else he had originally come to do, he still wasn't able to leave, as doing so would allow Noria to try and twist Leighla free of his courtship. And the Queen's displeasure about that was something he could already hear, even before it had started.