Regaining consciousness, you smell damp and see stone walls flickering in the firelight. You stumble to your feet and kick a helmet across the floor.

The ache in your head begins to fade, and you notice the start of a passage. After a few steps, the darkness consumes you.

Returning to the safety of the fire, you find a LIDAR scanner on the floor. A trigger press brings a faint glow from inside the helmet, and you put it on, adjust the beam-width, and proceed into the abyss.