After the warriors had cleared away the Black Magic Crystals.
Ang, along with the two Archmages, Tuwen and Montgomery, mounted Magic Brooms and flew toward the northern side of the canyon.
From high above, scattered figures of Demons could already be seen in the distant wasteland, silently approaching the canyon.
Ang's heartbeat quickened slightly, not from fear, but from the resolve stirred within him by the defenses about to be built.
He turned his head to look at Tuwen and Montgomery beside him. Both wore focused, determined expressions.
He nodded slightly, and the three landed lightly, taking their places in order along the edge of the canyon, keeping a tacit distance between one another.
No words were needed. The three cast their magic at the same time.
With an earsplitting roar, the earth shook violently, and a Stone Wall three kilometers long rose from the ground. Its rough surface radiated an unshakable presence.
Ang poured his magic into it, feeling his mana drain rapidly as fine beads of sweat formed on his forehead.
Tuwen and Montgomery gave it their all as well, their faces tense as sweat glimmered in the sparse sunlight.
The Stone Wall continued to rise until it reached thirty meters, when the three finally began to run out of mana and were forced to stop.
Panting, they took several steps back and stared at the towering barrier, feeling both exhaustion and accomplishment.
Ang wiped the sweat from his forehead and said steadily, "This is only the first step. We'll build it in three stages: first, this wall will stop the Demons; then we'll raise it to fifty meters; finally, we'll thicken it to improve its durability."
He pointed at the two twenty-meter-wide gate openings deliberately left in the wall. "These gaps are meant to lure the enemy