Chapter 1437
The sudden appearance of holy light within the Undead Sea quickly drew the attention of many powerful undead creatures. One after another, Sky Rank undead led vast Undead Armies into the area shrouded by holy light. These undead cared nothing for losses; nearly a million were purified every minute. But to the Undead Sea, which covered the entire land like an ocean, such losses meant nothing.
As long as these undead could drain even a bit of their opponents' mana, the tactic was working. This was the Undead Sea strategy—using sheer numbers to exhaust the enemy. Even a Sky Rank mage, faced with this relentless attrition, was doomed to be worn down.
No one can maintain spellcasting forever. Even Leon, with his natural semi-plane, couldn't do it. Mana consumption could be ignored, but the drain on soul power was something no one could overlook.
Leon hid within the radiance of the holy light, waiting quietly. The Skeleton King holding the Heart of the Plague hadn't appeared, so Leon wouldn't risk stepping out.
Soon, undead above level forty appeared—the first was a level forty-two Bone Dragon. When it flew within fifty kilometers of Prometheus, the surrounding holy light suddenly condensed into a giant sword over a hundred meters tall, piercing through the Bone Dragon's skull and body. Blinding white light exploded from within, and its metal-like bones were purified to ash, raining down from the sky.
Every undead above level forty that approached within fifty kilometers of Prometheus was instantly purified. They couldn't even get close, let alone interrupt his spellcasting.
As the undead below were slowly purified, a thick layer of black-gray ash blanketed the ground. Amid the ash, fragments of broken bones could be vaguely seen. The land within a hundred kilometers had become a zone of absolute death.
Yet outside the area covered by holy light, more undead continued to charge in, sacrificing themselves. Prometheus's body had become a miniature sun, advancing deeper into the Blighted Plains and purifying the undead with the radiance of holy light.
In just over ten minutes, every undead within a three hundred kilometer radius had been purified. The sheer number defied calculation—no one knew how many had been cleansed in those minutes. Even Leon, who had stayed with Prometheus the whole time, couldn't count them.