“That coffin of crystal…” You Si was taken aback by the crystalline coffin at the peak of the mountain. “The cold air in this region comes from that coffin!”

As the beholder of the Fire Altar, she was the mistress of fire and thus uncommonly sensitive to any cold in their surroundings.

“That’s not a crystal coffin.” Ashu frowned at the coffin that Xuanyuan Xiaoyue lay fast asleep in. “That’s a coffin of ice formed from connate kui water… just what is it that can freeze yin water like this?!”

Connate kui water was one of the strongest connate water essences around. It almost never appeared in gaseous form and wouldn’t freeze over, almost always maintaining liquid form....