Damp and Cold
The temperature outside hadn't fallen by much as Christopher traveled further into the forest, but here in the mine, he was freezing. With every step, his feet sunk into the soil another inch. He saw that puddles of water had collected, which was a good sign. Stagnant pools of water in abandoned mines could release dangerous gases when disturbed.
Bad Energy
Christopher continued into the depths of the mine. He began to feel uneasy as if someone was watching him. "The ambient temperature also seemed to suddenly drop all around me at this point, and I felt an even stronger negative presence ahead in the tunnel," he recalled later.