The feed they saw in the monitor was almost a complete pitch-black darkness. The spots illuminated by the tactical flashlight revealed rows of stone pillars formed by stalactites.
Nobody knew how many tens of thousands of years it had been since the formation of these stalactites. They were joined together from the top of the cave down to the surface, their entire body clad in a marbly white, bearing a close resemblance to jade pillars in a palace.
"All conditions are normal."
"According to the detector, the altitude is at -723 meters. The temperature is 24 degrees, the humidity is 70. Current atmospheric pressure stands at 105.7kPa. There's no carbon dioxide accumulation detected. There should be a passage somewhere around here."
The team regularly provided status reports from the other end of the radio.
700 meters underground?
