"Don't be fooled by their output. They eat far more than they produce. A single washbasin-sized Crude Oil Rubber Insect can consume 30 kilograms of rotten Soul Beast corpses a day just to produce less than 5 kilograms of crude oil."
As they spoke, Dean Wu led Han Ning to the area where the Crude Oil Rubber Insects were being raised.
By now, everyone had completely cleared out the sporadic Soul Beasts that had been wandering the southern part of the academy grounds.
To Han Ning's pleasant surprise, in the eight or nine days he had been away, the academy's teachers and students had worked with Da Yan to reinforce the perimeter walls and raise them by another section.
The stone used for the reinforcement and heightening was all created by Da Yan, who solidified it by manipulating the Earth Element.
