The environment around the underground ice lake grew colder and colder.
From the body's physical sense, Ronald estimated that the temperature had dropped to a critically dangerous level that threatened life.
Fortunately, the members of the team were accustomed to operating within the Polar Circle.
With sufficient insulation on their bodies, the cold temperature had not caused any significant effect.
Bearing this environment in mind, although aware that he was undertaking a challenge within the original trial, Ronald couldn't help but let his thoughts wander.
For instance,
How did a lake come to be hidden inside an underground glacier?
Ronald had seen lakes formed from the melting of Antarctic glaciers, but if situated underground, encased in solid ice all around, why should this place be any different?
Theoretically, there were many possibilities.
But without systematic research, it was really hard to come up with an immediate correct answer.
