Pollution Zone!

The next day, as dawn broke.

The cold air carried the unique, damp scent of vegetation characteristic of the Star Dou Forest. Bibi Dong didn't say anything more; her purple eyes swept over Lin Xia and Ivysaur, who were all ready to go, and she simply uttered a single word.

"Walk."

The operation began.

What followed completely overturned Lin Xia's understanding of the word "investigation".

Bibi Dong did not lead Lin Xia to cautiously explore the forest, nor did she use her wide-ranging mental perception to painstakingly discern the truth.

Her method was simple, direct, and shockingly brutal, yet it possessed a chillingly high efficiency.

She led Lin Xia and Ivysaur as if strolling in her own backyard, yet with deadly precision.

Selecting an area, Bibi Dong's spiritual power instantly captured the aura of a Soul Beast, like an invisible thread—it could be a hundred-year-old badger Soul Beast munching on berries, a thousand-year-old venomous python lurking in the bushes, or even a bird flying through the forest.

Without any warning, Bibi Dong didn't even need to move.

She merely narrowed her gaze slightly, Lock-On her target.

The next moment!

Puff!

A purplish-black Soul Power, condensed to its extreme and as thin as a hair, pierced through the Soul Beast's head or heart with unparalleled precision, like the fingertip of death!

The Soul Beast didn't even have time to let out a mournful cry before its life force was extinguished, and it collapsed limply to the ground.

The entire process was lightning fast and completely silent. Apart from the slight, muffled piercing sound and the faint thud of the Soul Beast falling to the ground, there was no other noise.

There was no earth-shattering light from the Soul Skill, nor any violent fluctuations of Soul Power leaking out; only an aura of death, restrained to the extreme, flashed by.

Lin Xia's eyelids twitched, and he felt a chill run down his spine. This control over power, this way of killing with such precision yet treating life as worthless, was the instinctive manifestation of Bibi Dong as the controller of the laws of death.

"Go."

Bibi Dong's voice was cold and emotionless.

Lin Xia immediately understood and quickly stepped forward with Ivysaur.

The Four-Colored Light Wheel on Ivysaur's back began to spin faster, especially the purplish-black pattern that represented the Rakshasa Divine Power, which began to glow slightly.

Lin Xia also fully activated her Plant Affinity Perception, extending her mental energy like tentacles towards the corpse of the recently deceased Soul Beast.

They carefully sensed the residual energy fluctuations, the scent of blood, and even whether there was that unsettling, cold, and sticky feeling deep within the cells of the corpse.

At the same time, Lin Xia also used her plant senses to examine the vegetation around the corpse to see if there were any traces of erosion by polluted energy.

A few breaths later, Lin Xia raised her head, looked at Bibi Dong, and shook her head.

"Master, this one doesn't have that. The surrounding environment is also very 'clean'."

"Um."

Bibi Dong nodded slightly, as if she had merely discarded a useless item.

"Continue."

She continued walking without stopping, then scanned the area again with her mental energy, Lock-On onto her next target.

Puff!

Another silent surge of deathly Soul Power.

Lin Xia and Ivysaur went forward to test again.

"Not this one either."

This process is repeated.

Lin Xia followed behind, watching Bibi Dong act like a ruthless and efficient quality inspector, killing and "examining" corpses as she went.

The chosen Soul Beast, regardless of their strength, are as fragile as ants in her presence.

This investigation method, which treats the lives of Soul Beast as mere consumables, made Lin Xia, a soul from another world, feel slightly uncomfortable. However, he also clearly recognized that this was indeed the fastest and most reliable method at present.

Faced with imminent crisis and time constraints, Bibi Dong chose absolute efficiency over useless benevolence.

The efficiency is indeed astonishingly high.

Areas that would normally require a great deal of time and careful exploration and perception were quickly filtered out using Bibi Dong's "bloody sampling" method.

No contamination found, mark the location, and immediately move on to the next area.

However, when they took samples in a place called "Shadow Forest," near the boundary between the outer and inner areas of the Star Dou Forest, things changed.

Bibi Dong used the same method, killing a three-thousand-year-old Demon Eye Lynx with a single burst of Soul Power.

Lin Xia and Ivysaur forward.

As soon as it got close, the purplish-black stripes on Ivysaur's back suddenly lit up, emitting a light several times stronger than before!

Lin Xia's Plant Affinity Perception instantly detected an extremely familiar yet repulsive aura—that cold, sticky feeling hidden deep within the flesh and blood of Soul Beast's corpse, like a maggot clinging to its bone!

"Master!"

Lin Xia's voice was solemn.

"This one is contaminated! Very slightly, but it's definitely there!"

Bibi Dong's purple eyes instantly sharpened like knives, her cold gaze sweeping over the lynx's corpse before slowly rising and casting its light upon the lush, dimly lit "Shadow Forest."

A cold smile curved her lips.

"Very good. It seems we've found the entrance to the mouse hole."

The next step was a direct upgrade from "sampling survey" to "regional cleanup"!

Bibi Dong stopped moving slowly and suddenly accelerated, like a purple Ghost type darting through the forest.

Her mental power spread out like a giant net, no longer Lock-On a single target, but covering an entire area!

The auras of all Soul Beast within the perception range were instantly captured and marked!

Then came a one-sided, silent storm of slaughter!

Bibi Dong didn't even need to stop.

As she passed by, faint "puff puff puff" sounds echoed from the shadows of the surrounding woods.

The sound was as dense as raindrops hitting thick fallen leaves!

Lin Xia followed behind, her pupils slightly contracted.

He saw the Wind Wolf, which had just raised its head from the bushes on the left, have its skull instantly pierced.

The Ghost-Faced Owl, which was flapping its wings as if about to take flight on the right side of the tree canopy, suddenly froze and fell to the ground.

The venomous Venom Scorpion lurking beneath the withered leaves was instantly crushed by an invisible force...

Each sound signifies the instantaneous death of a Soul Beast, utterly powerless to resist!

Corpses fell like harvested wheat along the path Bibi Dong traveled.

The smell of blood began to permeate the air, but it was quickly masked by the humus-like aroma of the forest itself.

Lin Xia and Ivysaur could barely keep up with Bibi Dong's speed, and could only quickly inspect the corpses of the fallen Soul Beast in the areas she had cleared.

"It's only slightly contaminated!"

"This one is too!"

"The pollution level has worsened!"

"Master! The pollution here is very heavy!"

Lin Xia's voice rang out continuously, rapidly reporting the test results.

The purplish-black light on Ivysaur's back was almost blindingly bright when it got close to some of the corpses.

Bibi Dong remained silent; her actions spoke volumes.

Based on the level and location of the pollution reported by Lin Xia, she continuously adjusted the scope and intensity of the "cleaning".

She sped past the lightly polluted area.

In areas with dense pollution, her killings became even more thorough, as if she were scraping repeatedly with the sharpest scythe, ensuring no blind spots were left.

This area, known as the "Shadow Forest," seemed to be trapped in the realm of death.