But even after Lin Yuan returned inside the base, he still had little idea what that energy black hole was.
All he knew was that it had appeared after the power inside the Great Chaos Monster collided with his A-rank energy and the two annihilated each other.
"The key should be the power inside the Great Chaos Monster. Just what kind of power is it?"
Lin Yuan returned to the base with that question in mind.
By then, the base had changed yet again.
Drawing on their experience from the first day, Rose and the others had remodeled the outer wall.
Now, the sections beneath the turrets were thicker than the ordinary sections, so even if the ordinary walls were breached, the turrets would not topple along with them.
All the turrets on the outer wall had also been replaced with area-of-effect cannons.
In addition, the traps between the outer and inner walls and the mix of turret types on the inner wall had been adjusted.
As Rose and the others saw it, this established the base's overall structure.
After that, the work would consist of continually reinforcing and upgrading the walls and turrets.
There was also Crazy Tiger's work on experimenting with and producing new types of special turrets.
Lin Yuan was very satisfied with what Rose and the other three had accomplished. He left them to continue building without concern and returned to the rest house built on the platform in the Inner City.
By then, Lin Yuan's A-rank energy was almost depleted, and he had less than a third of his health remaining.
"Little Black, help repair me."
Lin Yuan entered the rest house, lay down, and gave Little Black the order in his mind.
These days, Little Black studied hard in the Lin Yuan's cabin every