Chapter 1337: Upgrade

They were the most suitable to be melted into the Ten Thousand Spell Wheel. Those basic law runes were like a foundation. A powerful foundation was what made one continuously grow strong.

Half an hour later, the mana around Lin Yun was so dense that it was almost corporeal. The mist of mana had already become sticky. One breath here could replenish all the mana that one had used up.

The alchemy array set up in the castle had already been fully activated, locking all the waves inside the castle tightly. However, things were already changing inside the Natural Demiplane. On the peak of the pillar, mana had gathered into dark clouds that revolved above the peak like a vortex. From the center of the vortex, a colorful column of light was falling.