Two hours passed in a flash.
Han Ning sat on a chair in the temporary laboratory, eyes closed, focused on the vision of the advancing Rock-Breaking Ants.
Before he knew it, the three Rock-Breaking Ants had burrowed to a depth of about 300 to 500 meters. Each one had traveled a total distance of nearly a thousand kilometers.
Their underground exploration wasn't a straight line. Instead, they moved in looping, arcing paths to survey the subterranean conditions as thoroughly as possible.
So, a total distance of one thousand kilometers didn't mean they had actually advanced that far from their starting point.
Since the All-Encompassing Spiritual Silkworm wasn't very intelligent, it couldn't distinguish which terrain was suitable for constructing a power station. It could only mechanically direct the ants to explore onward slowly.
Han Ning had instructed it to alert him only when the Rock-Breaking Ants entered a region with a higher temperature.
