Prometheus (5).

They say hell has many layers, but the one with flames that could consume souls was the most notorious of all the planes...

Cain could only imagine his descent through the cave as a passage straight to such a hell.

With every step he took, the increase in temperature was so drastic he nearly choked on the sudden bursts of heat. Sweat oozed out of his pores in the gallons, drenching and ruining his clothes completely.

The blood loss coupled with the extreme heat meant he had only a few more minutes of consciousness at most. And he had barely taken a few steps into the cave.

'To think I still couldn't escape death...' Cain thought to himself with the last vestiges of his consciousness. He had endured so much in such a short amount of time, it was a surprise he was still standing on his two feet.