Several more years passed.
At last, the incubation tank in the deepest part of the Incubation Pool completed its final adjustments.
Benjamin stood before the controls, his fingers swiftly sliding across the rune panel as lines of data streamed across the light screen.
The new Incubation Pool was not merely the culmination of his research on Mount Magma; it also incorporated the Wizard Civilization's core Biological Modification technology from a parallel world. He stopped moving his fingers and pressed the final confirmation key on the panel.
The runes at the bottom of the incubation tank lit up at once. Silver-white light spread upward along the tank walls before finally converging on the fist-sized crystal core at the top.
That was another crucial modification to the entire Incubation Pool: an automatic Moonlight Essence extraction device.
It had taken Benjamin three years to turn the concept into reality.
The magic array would automatically extract Moonlight Essence from the moonlight of the Purgatory Sulfur Plane and mix it into the nutrient fluid in precise proportions, allowing every Black Giant being nurtured within to receive enhancement from the embryonic stage onward.
Its only drawback was that it required quite a bit of time.
Moonlight Essence was not unlimited. There was only so much that could be gathered within a given period.
Each new batch of Black Giants required the Incubation Pool to wait until enough Moonlight Essence had been accumulated before the next batch could begin.
But Benjamin did not care.
A slower pace was fine. As long as the quality improved, that was enough.
He checked all the parameters once more. After confirming there were no issues, he turned and nodded at the Black Giant Priest standing guard behind him. "Begin." The Black Giant Priest pulled down the activation lever.
The nutrient fluid