The Formation protecting the fortress was a wall of seven-colored light, built by dozens of ninth-tier sorcerers. It not only shielded the fortress, but extended out on both sides as far as the eye could see, like a dividing line.
The seven-colored barrier was thick and solid, like crystal, and gave off a gentle glow.
The sorcerers of the Holy Light Continent might not measure up to the divine path cultivators of Tianyuan Star, but they still had their ways. The Formation they had set up could keep the demons outside from invading, yet did not prevent any beings other than Abyss demons from entering or leaving.
Beyond the barrier lay a shattered region more than a hundred thousand miles long, stretching toward the horizon on both sides.
This broken stretch was the front line where the Sky Dragon Empire fought the Abyss demons. After a year of war, the earth had been torn apart and mountains had collapsed; the ground had sunk by hundreds of miles.
The number of lives buried here could not be counted. Not even a single intact skeleton could be found. Blood had stained the ruined earth a dark purplish-black, and the baleful aura of blood soared into the sky.
The slaughter between the Sky Dragon Empire and the Abyss demons had never stopped from the very beginning.
Demonic energy filled the world, and Abyss demons ran rampant without end. Every moment, hundreds of thousands of people poured out of the fortress to fight them, but fewer than one in ten made it back alive.
Almost every living being who left the fortress to fight the demons made arrangements for what would happen after their death beforehand, because ninety percent of them would never return.
The cruelty of war defied description, all the more so