The moonless night, the winds high.
Though the Immortal Emperor and Mister both considered this when designing the battlefield.
There is an extremely vast plain between the mountains and the city walls, precisely so that the moment the enemy steps onto the plain, they can be spotted and prevent a sneak attack.
However, if the Nefarious Demon Region deliberately conceals their movements and presence, the Mortal and Immortal Realms would still lose much of their prep time, which would surely impact their defense.
Fortunately, Ye Qiubai and the others discovered this in time.
Before they set out, the Immortal Emperor had given Ye Qiubai and his group a voice transmission jade pendant to report situations at any moment.
Now, it seems that was put to use ahead of time after all.
The moment the message was sent out—
The defenders atop the city walls began defensive preparations, and the Immortal Emperor sent people to lay traps on the plain outside the walls.
