Sunbeam Lair an alien world

Gundham had caught sight of the cavern from afar. Intrigued and fearless as he was, the overlord decided to trek up the mountainside to investigate. However, he caught scent of the fresh tracks from two others. This sent a wave of anxiety irritation over him, but no matter! No one would stand in the way of the Overlord of Ice! Finally, he reached the peak, though the two wolves he'd smelled were still here (unfortunately), one inside the cave and one out.

However, the pale man who stood closest to him had just started to give a prophecy:

"When the day come in which the forest shrinks,
the pure of heart shall usher forth a change of leadership
and arise in immorality."

Gundham's eyes widened when the man then collapsed, giving him no time to pick apart the meaning of his words. What happened? Had he been possessed by a spirit that was using him to convey this message? Or perhaps the power required for him to make such a prophecy was too taxing for his body. As Gundham rushed over to assess the man's condition, the woman inside the cave rushed out, frightened by the prophecy. Perhaps it foretold something negative to her. Well, whatever, she was not of his concern.

The man was still breathing, albeit with much effort. As he observed, Gundham noticed a dark, serpentine figure slithering about on his body. He gasped audibly. Was he, too, a demon beast tamer?! What were the odds? No, this encounter was fated to happen. Unable to rouse the man through touch, lest the poison within him kill the prophet for sure, Gundham shouted, Rise, prophet! I, the Overlord of Ice, have heard your prophecy!