Meng Chao took a deep breath and dived into the turbid spring water.
Enveloped by both his spirit magnet and spirit shield, he seemed to grow into an extremely large mass, and his density became incredibly high.
He sank into the mud deep in the spring water, like a weight sinking into butter.
Very soon, Meng Chao found traces of the underground river water that was hidden under the mud at the bottom of the spring. It was more than ten meters deep.
Judging from the cracks on the broken rock layer that had not eroded, Meng Chao guessed that the underground river water had formed not long ago.
The spring should have formed recently too.
A few months ago, this underground river was probably located in the deeper part of the rock layer. The river channel was surrounded by dense rocks, so strong radiation and high-pollution substances in the river water could not penetrate the rock layer and pollute the surrounding land.
