She looks back, though not at Thranduil (who she's ignoring as much as possible without crossing the line to outright rudeness), but with a considering look at Korrin. After a moment, she shakes her head.

"No. The difference is not so great, and I will not ask others to take the risk in my place." Although, she had made the decision for all of them to press on despite the danger, rather than turning back, and so after another thoughtful pause, she adds,

"If there is anyone who wishes not to continue, considering the state of the prison," i.e., an unpredictable deathtrap, "it would not be unwise to leave a lookout up above." Volunteers? Anyone?