Once the Level 25 Rapid-Fire Armor-Piercing Cannon was synthesized, Lin Feng immediately activated the Rapid Pursuit attribute!

With a firing rate of ten shells per second, it unleashed high-explosive armor-piercing shells with a damage of up to 550 points!

As Lin Feng slowly released the finger that held down the trigger, even he didn't know how many shells he had fired.

But it was at least six seconds!

That is, sixty shells, with power greater than a 155 mm grenade cannon, were fired from the muzzle of Lin Feng's 2.5-meter-long giant cannon towards the Tier Two Mid-Stage Corpse Wolf and the entire tunnel.

About a dozen shells hit the Tier Two Corpse Wolf, while most of the other shells grazed its iron fur, striking the tunnel walls behind it.

The power of the synthesized armor-piercing cannon was not only evident in its armor-piercing damage to the Tier Two Mid-Stage Corpse Wolf, but also in the shells' impact on the ceiling!

Due to the slight angle of shooting, many shells only struck the ceiling after flying seven or eight hundred meters, triggering the detonator like a steel needle piercing deep into the reinforced concrete, followed by a secondary armor-piercing explosion!

The successive dual explosions reverberated, causing the entire arch structure of the tunnel ceiling to collapse with a thunderous sound.

The vibrations from the subsequent dozens of shells further triggered a chain reaction of collapses, rapidly expanding the collapsed area of the ceiling.

Consequently, at the node where a secretly constructed emergency shelter was situated, the collapse of the overhead tunnel caused the load-bearing walls to fracture, leading to a more severe secondary subsidence.

This man-made disaster even affected the mountainous surface between these two shelter ruins, causing hundreds of meters of mountainside to sink.

A thunderous noise erupted from within the mountains, causing the entire hillside to fracture and gradually sink dozens of meters underground…

But this had little to do with Lin Feng.

Having completed the hunting and collection plan and the mission with Zong Shiyue, he stowed the synthesized armor-piercing cannon and sought to quickly exit the collapse-filled, smoke-choked tunnel.

Grasping the colossal Tier Two Mid-Stage Corpse Wolf, which weighed a full twenty tons, he retreated without looking back.

This fearless Tier Two Corpse Wolf charged through the barrage of fire, only to reluctantly fall before Lin Feng.

As the tunnel's collapse continued to spread, Lin Feng had no time to investigate, only to grab his spoils and escape the collapse area.

With adrenaline surging, Lin Feng unleashed power he had never used before, running a kilometer with the Tier Two Corpse Wolf in hand.

However, as time went on, the weight of the wolf carcass became increasingly manageable.

After dragging a nearly twenty-ton load for two kilometers, Lin Feng looked back to see most of the flesh and blood of the Tier Two Corpse Wolf left behind on the path.

Much of it was already buried under rubble.

Hurrying forward, Lin Feng discovered the Corpse Wolf's abdomen was blown open by an armor-piercing shell, with intestines thicker than a human arm and other various viscera spilling out during the retreat.

Thankfully, on closer inspection, he found the main heart organ still throbbing, with several large arteries still intact, ensuring the enormous wolf heart remained in the Corpse Wolf's chest cavity.

The wolf heart, as the Evolutionary Meat of the Desert Wolf, was rich in Life Source Material, and when Lin Feng leaned in to inspect it, he felt a heavy genetic radiation…

This suggested that the wolf heart still contained Tier Three cells, acting as the Wolf King's suppression of Zong Shiyue's pollution source within the Fei City Ruins.

However, with the loss of the Corpse Wolf's flesh and blood carrier, the Tier Three Wolf King cells began to shrink and entered a dormant state.

Looking at the now stable tunnel in the distance, Lin Feng planned to perform dissection and harvesting post-departure.

After resting for a minute to catch his breath, Lin Feng dragged a twenty-meter-level Corpse Wolf out of the dusty tunnel entrance.

By now, the Mutant Beasts and Werewolves in the train station had all vanished, scattered like birds and beasts. Most of them perished in the Mutant army summoned by Zong Shiyue.

The latter's silhouette gradually emerged beside a Tier Three Distortion King, watching the spoils Lin Feng brought out, and spoke with a complicated expression:

"Take it to the upper three levels as soon as possible. Every minute spent here exposes us to genetic contamination…"

"I've arranged for the cooperation crate to be sent by a Mutant to the exit of the negative third level. Accompanying it is a batch of three tons of bullet manufacturing materials."

"This includes one ton of brass and two tons of gunpowder, enough for you and your team to use for a while."

Lin Feng nodded, frowning slightly at the three wolf corpses in front of him.

The two Tier Two Early Stage Corpse Wolves previously lured and killed each weighed over ten tons, and along with the Mid-Stage Corps Wolf brought back from deep in the tunnel—though having lost most of its organs—it still had a muscle and bone mass over ten tons.

The three revived wolf corpses together weighed more than forty tons, and unless Lin Feng made three trips, he couldn't move such a heavy load, even with all his might.

Zong Shiyue recognized the problem and spoke up:

"Just move them to the negative third level. Once the Scorching Sun Forbidden Area arrives, everything under the Curse Energy will be ignited and burned to ashes."

"So take care of dissection there."

Lin Feng calculated that it was only fifteen kilometers round trip from the negative fifth level to the negative third level, which was manageable.

If they had to move everything to the surface, an additional twenty-five kilometers would be too much of a strain, even for a Tier Two Evolver.

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