Lin Fei activated his Heaven Concealment Technique and began to shadow the five Merfolk. They were patrolling this stretch of sea, clearly functioning as guards of some sort. Realizing that simply following them wouldn't yield any valuable intelligence, Lin Fei decided to take a risk and silently seize control of one of them. By capturing one and extracting its soul memories, he could gain significant information about the Merfolk tribe.
The risk lay in the fact that Lin Fei could not gauge the Merfolk's soul power level. If the target’s soul power exceeded his own, using the Soul Control Technique could result in a backlash. Therefore, the safest approach was to determine their specific soul power levels first before proceeding.
He moved closer; they were completely oblivious to his presence. He could have swum right in front of their noses without them noticing a thing.
Chapter 1698