Outside Emperor Land, in the Starfall Sea.
Unlike Ao Fen, Eel Thunder Emperor had prepared thoroughly. Coupled with his seasoned cunning, this allowed him to hold out for a long time before he was severely wounded.
Just as the Demon Emperor was about to deal the killing blow, Emperor Shui Ku stepped in to stop him.
With his potent poison, Emperor Shui Ku hindered the Demon Emperor for a long time, but the Demon Emperor was too powerful, and he was still defeated.
Then Emperor Yanwen intervened and saved Emperor Shui Ku.
Ao Fen, Eel Thunder Emperor, and Emperor Shui Ku were all immensely powerful. They had not fought with their lives on the line, only sought to obstruct the Demon Emperor. Though they had not threatened his life, they had consumed a great deal of his power.
After fighting Emperor Yanwen for several dozen breaths, the Demon Emperor realized that he was spending demonic power faster than he could replenish it. Emperor Yanwen was actually stronger in many respects than the four Emperor Realm opponents before him. Furious, he brought out a Half-Sage treasure, and only then managed to gain the upper hand over Emperor Yanwen.
But after obtaining the star-bearing stone, Emperor Yanwen's strength had grown rapidly. He had also benefited from entering and leaving the Hall of Doom. He might have fallen short in other respects, but as a member of the Rock Race, his ability to take a beating was first-rate.
After a long while, just as Emperor Yanwen was about to give out, the Yungen Emperor intervened.
The Yungen Emperor could not inflict the slightest injury on the Demon Emperor. However, having mastered the power of nothingness, the Yungen Emperor frequently dissolved into nothingness, easily evading the Demon Emperor's attacks.
In the end, the Demon