There were Mimic Blade Beasts inside the fortress.
When Wu Man said this, Daoist Wang and the others all thought they had misheard him.
How could there be Mimic Blade Beasts inside the fortress?
The residents of the Fortress Era all knew that fortresses had become humanity's last refuge for three main reasons.
First, Underground Fortresses were structurally easy to defend and difficult to attack.
At the very least, they would not repeat the tragic sight of surface cities being swept away and devoured by overwhelming Blade Beasts.
Second, Underground Fortresses could continuously strengthen their defenses by thickening their outer walls and setting up underground mine networks, effectively preventing Mimic Blade Beasts from infiltrating.
Third, they made it convenient to carpet-bomb the surface with airburst nuclear weapons.
If Wu Man's senses were not mistaken and Mimic Blade Beasts had indeed appeared inside the fortress, then there were only two possible sources.
Either the Mimic Blade Beasts had taken the opportunity to slip into the fortress during this Fortress Siege Battle;
Or they had infiltrated during one of the fortress's routine intervals for exchanging supplies with the outside world.
No matter which possibility it was, it pointed to one problem—the Psionicists of Fortress No. 76's Psionic Home had neglected their duties and done nothing. They clearly possessed instruments capable of detecting Mimic Blade Beasts.
As for Wu Man's sensing ability...
It could also be considered Wang Jixuan's contribution.
After the Resentful Energy of the Remnant Soul of Blade Beast that had constantly been eating away at Wu Man's body was extracted, Wu Man's Beast Speaker-like ability was further strengthened.
Although Wu Man could not understand the information exchanged between Blade Beasts, he could receive the commands of the Young King Insect, roughly comprehend those commands, and further sense the Mimic Blade