Fifth Wave - II

Even their facial features changed, and they became more intelligent, with calculating expressions.

Their eyes, no longer dull and filled with blind rage, now gleamed with a predatory focus, sharp and alert. 

Faint traces of dark, tribal markings like tattoos began to appear on their skin like runes being etched by some invisible hand.

These markings pulsed with a special glow, resonating with the spiritual power around them.

"What... the hell?" Korrin muttered, barely able to believe what he was seeing. 

One of the cavemen—no, they couldn't be called mere cavemen anymore—let out a low growl. 

His deep-set eyes met Korrin's, and at that moment, Korrin realized that these new special evolutionary forms possessed more than just physical power, and their quality didn't seem to be low either. 

They had retained their savage instincts but now tempered it with intelligence, becoming a dangerous combination of both.