I run ahead for over an hour. But there's no sign of them. And no footprints.

I'm starting to panic! I'm alone, miles below the surface of the earth! They could be in any of dozens of caves leading in all directions! Should I go back? Or go forward? Maybe the caves all lead to the same place? or maybe they just split off in a millions directions? I don't know! I just don't know what to do!