Yet instead of fear, Gu Tianzun's greed only grew stronger.
"If I can control this treasure, nobody in this world will be my match." He closed his eyes. Then he began the refinement process. Streams of divine essence flowed from his body into the pen.
One second.
Ten seconds.
A minute.
An hour.
Nothing happened. Gu Tianzun frowned. He increased the output of divine essence. More power poured into the pen. Yet the result remained the same.
The pen absorbed his energy as casually as a grain of sand disappearing into an endless desert. He continued tirelessly. Finally, Gu Tianzun opened his eyes. His expression had become grave.
"What is this thing?" He looked at the pen in disbelief. Based on his calculations, the amount of divine essence required to refine it was simply absurd. His mind quickly worked through the numbers.
The result made his heart sink.
"At this pace..." His voice became heavy.
