Within the hundred regions of the Eastern Continent, there was a canyon.
This canyon was called One-line Sky, with towering mountains on both sides that reached the clouds. Only at the end of the horizon could one see a thin strip of sky, resembling a line.
Originally, it was the first wonder of the Divine Punishment Star located in the east.
After the divine punishment, One-line Sky became a place densely populated by undead creatures. At the late stage of boundary opening, these creatures could move freely, and many high-level undead gathered here.
If there were still two hundred thousand undead creatures on Divine Punishment Star, about fifty thousand were gathered in One-line Sky.
Even Martial Artists had to avoid the areas with high-level undead. In the end, more and more undead converged here, turning One-line Sky into a forbidden zone for martial artists. Even powerhouses like Qin Jianfeng could only slowly linger around the edges and gradually clear the area.
