As her divine sense gradually deepened, Jiandan discovered that at the lowest level there were individual cages containing human immortal cultivators. Some were unconscious from severe injuries, some were at their last gasp, and others were still somewhat clear-headed, though their expressions were rather gloomy. One could easily imagine that being captured by the Zerg would not lead to a good end.
Among these people, surprisingly, not a single one was of the Demon race. Jiandan was well aware that this was due to the special drug used to mark the soul, refined from a mixture of Mubi grass and Yingzong grass, which played a decisive role. The Zerg knew very well that even if they captured members of the Demon race alive, they could not use their skins to infiltrate the Demon Domain, which was why they focused their targets entirely on the immortals of the Immortal Realm.
Otherwise, the Zerg would not have meticulously plotted in Wanhuacheng, approaching Bailian and Luocui simply to seize the Mubi grass. She still remembered that the spy from the Cui family had never appeared, and she had no idea whether they had been caught later on.
Chapter 1508