Just as Xia Liang was planning the Undead Domain's future development, a shrill roar suddenly rang out in his mind.
It did not sound like a human voice, but that of a beast—a Wraith Roar from some beastly undead creature.
Now that his Undead Attribute had risen to a higher level, Xia Liang's perception of the undead had become far sharper.
What puzzled him was that he was currently in the waters of the Ice and Fire Yin Yang Well, at an unknown depth. By all logic, no undead should have been able to exist here.
Yet he had clearly heard the voice of an undead being.
Only then did Xia Liang remember that beneath the bottomless abyss of the Ice and Fire Yin Yang Well lay the corpses of the Two Dragon Kings of Ice and Fire.
Could the undead cry that had entered his mind have come from the Two Dragon Kings? Lowering his head to stare into the waters below, Xia Liang saw nothing but darkness. He was still far from the depths of the bottomless abyss.
So, it was not because his perception was exceptionally powerful that he could hear the Two Dragon Kings' Wraith Roar.
Rather, the undead of the Two Dragon Kings were simply too powerful. Their Wraith Roar could travel this far even from beneath the bottomless abyss.
The Undead Attribute was also a form of soul power.
One had to be especially cautious when using soul power. If the opponent's soul was stronger than yours, there was a risk of being countered.
If he descended into the bottomless abyss, would his soul be destroyed by the undead of the Two Dragon Kings?
At that thought, Xia Liang's heart trembled. At first, he had planned to search for Soul Bones from the corpses