Seeing the four men collapse in an instant, the red mist that had appeared in Li Yan's other hand within his sleeve finally vanished again.
The pitiful four Spirit Transformation cultivators had probably never imagined that one day, they would encounter a Soul Cultivator, an exceedingly rare breed in the cultivation world.
After merely one exchange, before they even felt the slightest stabbing pain in their souls, they had all fainted.
Li Yan had used the "Lost Soul and Scattered Spirit" spell. This technique primarily caused one's soul to lose its way. He had come here to infiltrate the military camp, so naturally he could not casually take lives.
The "Lost Soul and Scattered Spirit" spell he had cast could cause even a Body Fusion Realm cultivator to suffer a brief spell of dizziness as long as it struck them, giving him time to judge his next move.
Only after the four had fainted instantly did Li Yan clearly see their cultivation levels with his Divine Sense. As expected, none of them were mid- or high-level cultivators, and he let out a great sigh of relief.
"Hit them too hard. I'll have to feed them pills!"
Li Yan could not help muttering. These four were too weak. Originally, a soul-losing technique at merely twenty percent strength would have been enough to deal with them, but in his excessive haste, he had struck far too heavily.
If the plan was to continue now, he could only give the four of them medicinal pills. Otherwise, if he expected them to wake up on their own, sleeping for several decades would probably be perfectly normal.
As Li Yan withdrew the deadly poison into his sleeve, a thread of Divine Sense also retracted from behind him. The Heaven-Stealing Kerchief still silently covered that spot.