Walking through the caves that got them lost in the first place, Anna briefly let her mind wander as her group traveled in silence with her Leader's self-fashioned little sister lighting the way. It was probably close to sunset by now judging from the time that they had spent waiting for Rouge to do what he needed to be done, but overall, it was still a very productive two days despite getting themselves lost after subtly strong-arming herself to lead their two-man expedition.
In hindsight, she should've admitted that they were lost as soon as she realized she had lost track of their markers.
The unfortunate accident was her fault, and she eventually realized it as soon as the temperatures dropped. Rouge had adamantly tried to place his own marks along the way, but her pride won out after their leader gracefully turned over the decision to her. And they, unfortunately, paid dearly for it.