Chen Xun smiled, planted an axe into the ground, and gazed into the distance beyond the immortal ridge. "Old Ox, the age of these Crane Spirit Trees is rather particular too. We have to choose the moment when they flourish to their peak and begin to decline. We still need to nurture them more with Essence of All Things."
"Moo." Big Black Ox sniffed around everywhere.
They had researched this long ago. Only when a Crane Spirit Tree reached the point of flourishing to its peak and declining would it cease absorbing the spiritual qi of heaven and earth. It could then be buried underground and allowed to evolve with the passage of time.
However, Crane Spirit Trees in the Great Age basically had no such period of flourishing and decline. This tree grew according to the concentration of spiritual qi; it never grew according to the passage of years. They had learned this back when they were in the Five Elements Sect of the realm domain.
And the next step after flourishing to its peak and declining was the birth of heaven-and-earth death qi!
In the previous generation of the Three Thousand Great Worlds, the Great Thousand World, during the Era of All Spirits' Silence, Crane Spirit Trees had flourished with heaven-and-earth death qi and brought about world extinction, plunging into the silent deadness of heaven and earth's next cycle...
But the present heaven and earth and this era were still nowhere near that stage. Heaven-and-earth death qi could only be seen within the laws of destruction in the Immortal Ancient Forbidden Ground. Not even the Ancient Crane Spirit Tree possessed it.
The spiritual qi concentration of the Great Age also made it fundamentally impossible for a Crane Spirit Tree to produce death qi after merely a hundred thousand