Within the Northern River City Defense Formation, all the cultivators felt a shiver in their hearts the moment the Black Demon Flower appeared.
Especially the General of Northern River Pass, who had a dramatic change in expression.
Initially, they didn't recognize what this strange plant was, but they all sensed a hint of danger.
At this moment, Lu Qingshan, who also rushed to the Northern River Pass city wall to observe the situation, appeared even more solemn compared to the Northern River Pass cultivators.
He recognized these three strange plants.
Not long ago, during the attack on Feather Demon City, he had seen the Black Demon Flower.
This was the foundation of Feather Demon City, a wondrous artifact comparable to the city defense formation of the Human Race.
At that time, even just one blossom could enhance the combat power of all the demonic cultivators in Feather Demon City.
The strength it released rendered Lu Qingshan temporarily powerless.
