816 Hairy Men, White Silkworm, Two Tough Questions

Gu were the essence of heaven and earth, mortal Gu contained a trace of law fragments of the Great Dao, while Immortal Gu were fragments of the Great Dao.

Gu refinement involved the fusion and interaction of the laws of the Great Dao, it was even more mystical than chemistry, and even more dangerous than processing gunpowder.

Fang Yuan was in the air, he observed for a while, more than ten hairy men had failed Gu refinement, they suffered injuries, a few of them died on the spot.

He could not help but sigh inwardly: "As my production expands, the loss of hairy men is becoming a bigger issue."

Hairy man slaves were most expensive among slaves, they were even more expensive than human Gu Masters!

This might be quite shocking, how could the price of humans be lower than mere hairy men?