A satisfied expression appeared on his face. This level wasn't bad. Besides consuming some of his blood and soul power, the consumption of his companions was not much.

When Tang Wulin passed the second level, he realized that if there were many more assessments to come, they needed to distribute their soul power reasonably now. 。l. This method allowed for the extraction of the core energy from rare metals, followed by purification and compression. 。And these source volumes are very small; a one cubic meter block of lead can e...