Lu Chen's first letter was an intelligence report on the barbarian tribe to the north. The spy mentioned that the Barbarian Tribe Goddess seemed to have invented some kind of war formation with immense power.
When the Barbarian Tribe used this war formation, they could even conjure up some illusory entities that could directly destroy a mountain peak.
Lu Chen thought to himself, War formation?
Although there were war formations in the world before, they were just ordinary offensive and defensive tactics.
Normal war formations couldn't conjure up any tangible entities.
Such illusory things didn't seem like they belonged to this world at all.
Could it be that this Barbarian Tribe Goddess...
Came from the Misty World?
The prohibitions of the Misty World had loosened long ago. Since Wu Junwan and the Yue Emperor could return from the Misty World, it was naturally possible for other people from the Misty World to come out as well.