After storing the third piece of rubble in the System Space, Jiang Liu immediately seized the time to circulate the Saintly Sky Art.
The black corrosive gas was becoming increasingly scarce. Jiang Liu could not bear to waste even a little of it.
Jiang Liu still did not know whether this black corrosive gas could only be found in the pits dug out of the rubble.
Or whether he would be able to find it after digging up the entire pale-yellow area.
He did not dare gamble on that.
If he dug up this area and failed to find any black corrosive gas, that would still be acceptable.
But if digging up this area caused the gas to erupt on a massive scale, whether he could withstand it would truly be a major problem.
Moreover, the black corrosive gas would seep out from the pit until it completely disappeared in the end.
That showed that perhaps what was happening here was not as he had imagined.
Therefore, if he wanted to uncover the secrets of this Nether River, he had to strengthen his body to the extreme.
Even though he did not know whether, after strengthening his body to the extreme, he would be able to resist the possibility of even more intense corrosive gas appearing beneath the pit.
Jiang Liu had already decided to investigate the truth behind this.
Feeling the black corrosive gas inside his body, far stronger than that from the second pit, Jiang Liu felt satisfied.
His meridians, which had already been completely restored, once again became riddled with holes.
Moreover, the rate at which they decayed was clearly much faster than during the previous attempts.
Having gone through this several times already, Jiang Liu remained completely unflustered. He continued absorbing the black corrosive gas into