Linglong's true form was an artifact called the Linglong Lunar Pearl.
It was an Ancient Immortal Artifact that Water Moon Fairy had forged from the core of a lunar star.
Once fused with its master, it could protect the primordial spirit, rendering it impervious to all arts.
Not only could it greatly weaken all kinds of soul attacks, it also granted immunity to soul control.
Even a Celestial Immortal acting in person could not forcibly seize control of Yun Zheyue's soul.
That alone was enough to show how extraordinary Linglong was.
Aside from protecting its master, it could also greatly amplify the power of illusion, spatial, lunar, and similar spells and divine abilities.
Moreover, Linglong's true form was the hub through which all the formations and restrictions in Water Moon Grotto-Heaven operated.
Controlling it was equivalent to controlling the entire Water Moon Grotto-Heaven.
Lin Fei's spirit body looked at Yun Zheyue with a touch of envy.
Of everyone he knew, she had encountered the greatest opportunity on the path of immortal cultivation.
As long as she survived, she was certain to reach the Heavenly Immortal Realm someday.
"Zheyue, aside from Linglong, Water Moon Fairy must have left you some resources for cultivation, right?"
Yun Zheyue nodded slightly, holding nothing back from Lin Fei.
"Yes, she did."
"There are ten thousand immortal crystals containing immortal spiritual qi. They can accelerate cultivation and nourish the physical body and the primordial spirit's essence. There are also some manuals of secret arts and divine abilities needed for cultivation."
Immortal crystals were exceptionally precious and rare.
The immortal spiritual qi they contained was far superior in quality to ordinary spiritual qi.
Just a dozen or so immortal crystals could restore the depleted magical power of an Earth Immortal Realm expert like Cangming Sea Dragon.
For