This was actually a deeply unsettling question.
Zong Shen still had many things he did not understand about the Blood-Burning Demons' invasion back then.
As an era transition marked "failed" in the Strategy Guide notes, Zong Shen believed that age must have concealed countless unresolved mysteries.
The Blood-Burning Demons, who had made such a powerful entrance only to suddenly disappear, might have possessed many unknown traits as well!
After giving it some thought, Zong Shen suddenly recalled the Condemners descending to purge the greater demons.
That had been a corrective intervention and error fix for the era transition of the Endless Continent.
He swiftly sorted through the timeline of the Blood-Burning Demon invasion at the end of the previous era.
First came the end of the era. The Blood-Burning Demons launched a surprise assault, and over a hundred Demon Legions that had long been poised for action deployed in full force.
Every Blood-Burning Demon Legion contained over a million demons of various ranks. For the dimension inhabited by the Blood-Burning Demons, this was no different from a total mobilization of the entire populace.
By contrast, neither the nonhuman factions nor the human factions of the Endless Continent had been prepared.
Zong Shen had already discovered many related records in the rubble of the Azshara Ruins.
In other words, the Blood-Burning Demons possessed an information advantage. They had very likely learned intelligence related to the attack beforehand, including the distribution of great cities across the Endless Continent, the major factions, their combat strength, racial characteristics, and so on.
Only that could explain why the Blood-Burning Demons had been able to appear so precisely above the major great cities of every major faction and launch lightning-fast blitzkrieg assaults.
Many great cities fell because they had been caught unprepared.
In truth, if those