Stepping into the cave, Landon and his men moved stealthily against its walls.
The cave's tunnel spiraled into infinite darkness, as they moved further away from the entrance.
Presently, all the men were wearing night vision goggles that were roughly about half the size of regular binoculars.
These goggles had a thick long head straps, as well batteries, a cathode, an anode, imaging tubes, several lenses that were coated with multiple chemicals and so on.
With these goggles, if the men wanted to turn off night vision mode, they could just flip the tiny switch at the lower right end of their goggles.
The cave was pitch black, so this was the best way to know if an enemy was hiding in secret.
After all from the system's map, it was clear that guards were supposed to be positioned at several checkpoints within this long winding cave.
