Another dragon roar rang out. This time, it was Saine's father-in-law, Baxia, who had let out the bellow.
Baxia had likely realized as well that when it came to pursuit, his massive, cumbersome body was indeed unsuited to the task.
So Baxia charged straight toward where Saine and Wang Wang were.
Defensive warfare was Baxia's specialty.
It was only a pity that the Wizard World's Ancient Leviathan had not come. Otherwise, he, Usotos, and the Ancient Leviathan could have formed an iron triangle of defense.
However, the Immortal Domain also had powerful turtle-type creatures.
Aside from Black Tortoise, one of the Four Symbols, whose defensive power was exceptional, Baxia's younger brother Fu Xi was also near the Prehistoric World battlefield and was continuously rushing toward Baxia.
The appearance of the Immortal Domain's defensive forces left the Nether Bone Demon Ancestor looking extremely grim.
What angered him even more was that, as a Level-8 Peak Demon Ancestor wielding a Civilization Supreme Treasure, he still could not do anything to a Level 7 Immortal Domain Formation Master?
The urging from the Bright Blue Demon Ancestor, along with the orders of Lord Secluded Bamboo Supreme, left the Nether Bone Demon Ancestor with no way out.
Especially as more and more Immortal Domain experts arrived, the time available for the Nether Bone Demon Ancestor to act grew increasingly scarce.
A savage look crossed the Nether Bone Demon Ancestor's face. Clenching his purple right fist, he suddenly slammed it against his own chest.
A great spray of deep-purple Demon Ancestor Blood Essence burst from the Nether Bone Demon Ancestor's mouth.
These Evil Tide powerhouses were all ruthless characters. The Nether Bone Demon Ancestor was normally not as flamboyant as the other Demon Ancestors, but at critical moments, he could be just as merciless with himself.