There's only one way to find out, in any case. Either we go through the doors, or we go back and try to use the elevator again.

[Mia's got a point, but what are they supposed to do about it? He doesn't see any way of being more cautious than they already are, so he shrugs.]

I, for one, don't want to go backwards, so we should do our best to be careful while we keep going forwards.