Chapitre 642: Fate of the couple (2)

"The evolution happened because of a treasure bone.." Bai Zhen said after a short silence.

"A treasure bone?!" asked Yang Qing with widened eyes of disbelief.

"Yes, a treasure bone.." said Bai Zhen with a sigh.

"How did you even end up with something like that?" asked Yang Qing still in surprise from the revelation.

Forming a wisdom pearl was a diving threshold for spirit beasts. Only those with a certain level of talent were able to form one.

The wisdom pearl contained their insights and achievements in a particular dao and was extremely valuable to both spirit beasts and humans too.

However, as precious as it was, one million wisdom pearls filled with in-depth insights into the Dao wasn't as valuable as a single speck from a treasure bone.

The treasure bone, also known as the mark of the saint, was something formed when a spirit beast reached the soul formation realm.