The only source of light in the carriage was the emergency light located next to the door that Dahan turned on when he entered, and the dim red light rendered the entire carriage a disturbing color of blood.

Qi Lin and Dahan didn't dare to act rashly, and no one knew if the monster above their heads would suddenly tear open the steel mesh and iron sheet on the top of the carriage and jump into the carriage.

The train was still moving in the tunnel, but at the moment there were only three extremely muffled breathing sounds, except for the grinding of the wheels against the metal tracks and the sharp whistling of the wind blowing through the windows.

Two came from Qi Lin and Dahan, and the third came from the top of their heads.

"Poof!"

Without warning, a sharp claw about ten centimeters long suddenly pierced through the iron sheet on the top of the carriage and appeared in the field of vision of the two of them.

The claw was extremely sharp, with tiny barbs at the tip, a series of sharp serrations extending from the tip to the end, and in the gaps between the sawtooth were a lot of rotting flesh.

The two looked at each other, and instead of attacking, they took a step back together.

The shell of this green car is very thick, not to mention the claws of mutated creatures, even if you shoot a 54-style pistol at the carriage, the bullet can easily penetrate it.

But just because a single claw just got the creature inside didn't mean the monster could enter the carriage - the protective net welded with steel bars was the real barrier compared to the fragile iron sheets that made up the carriage.

Qi Lin bowed slightly, holding the 56-style three-edged military thorn in his hand, with his strength, he could easily pierce the skull of a bison from the front until it was stalked, but such an injury, for many mutated creatures, could not be instantly fatal.

In the face of the death-defying counterattack of mutant creatures, even the most seasoned hunters must be cautious.

The claw that had penetrated the roof of the carriage was retracted, leaving a round hole with a diameter of one inch on the carriage, but unfortunately, at Qi Lin's angle, when he looked out through the round hole, he couldn't see anything.

"Tick, tick—"

Just when Qi Lin wondered why the monster didn't continue to tear the carriage, a faint strange sound came from above, and it sounded as if something was dripping onto the roof of the car.

Is it blood? This monster is injured?

"Tick, tick...... Snort-"

The "ticking" sound was accompanied by an even stranger sound, which was like throwing an effervescent tablet into water......

Wrong! This is the sound made when strong acids react with metal, and the dripping on the carriage is not blood at all, but a very corrosive acidic substance!

As if to confirm Qi Lin's guess, the roof of the carriage was quickly eroded by this substance into several irregular holes, and a drop of turbid liquid leaked out of the hole and fell on the floor of the carriage, and many fine foams immediately bubbled out, and soon, this small drop of liquid eroded a small hole into the floor spliced with patterned steel plates.

"Damn, this monster is corroding steel with this!"

The big man reacted immediately, raised his shotgun, and pulled the trigger on the roof of the car!

"Bang!!"

With a loud bang, dozens of steel balls erupted from the barrel of the gun, instantly piercing the roof of the car and hitting the monster.

"Shhhh

The monster on the roof of the car let out a scream that was enough to tear the eardrums, and a creepy piercing sound sounded, and the attacked monster quickly tore the iron sheet on the top of the car, and then poked its upper body into the car-

After seeing the true face of the monster, the big man and Qi Lin both gasped.

It was the upper body of a human, with shoulders, upper arms, protruding collarbones, and even ribs, which were almost indistinguishable from humans, but on the top of its neck was a conical head similar to that of a mole.

On this cone-shaped head, there are many clefts irregularly, each of which is a mouth of the monster, which is filled with fine and sharp teeth.

The corrosive, acidic liquid is the saliva that comes out of these many mouths.

", what is this?!" The big man let out an exclamation, but the movements in his hands did not stop, and immediately pulled the second trigger of the double-barreled shotgun.

"Phew!"

The shotgun fired again, but instead of a dense ball of steel and iron sand, a single shot shot came out of the second barrel!

The one-headed bullet hit the monster's head, and the huge kinetic energy attached to the bullet directly tore off a large piece of flesh with many fangs and glands from the monster's head - this shot almost knocked off a quarter of the monster's head!

It stands to reason that any creature that has suffered such a heavy blow, even if it does not die on the spot, should lose its combat ability in an instant, but after losing a quarter of its head, this monster became more and more violent, ignoring the sharp iron sheet on the edge of the breach cutting one after another on its body, and desperately burrowed into the carriage.

"! What the hell is this! The big man was shocked, and hurriedly retreated to the edge of the carriage, and hurriedly broke the barrel of the shotgun, withdrew the empty cartridge case, and loaded the chamber with new bullets.

Before the shotgun could be reloaded, the monster with its drill-like conical head had fully burrowed into the carriage and landed on the floor of the carriage with a thud.

Only then were they able to see the monster in its entirety.

Except for the drill head with no facial features and only a lot of bloody mouths, the part below the monster's neck is not much different from a human, and there is even a pair of dirty and torn jeans on the lower body of the monster, almost mixed with mud.

This monster ...... It was once supposed to be a human ......

It's just that now, after suffering from radiation mutation, this guy should also be infected with the foreign genes of some mutated creatures, plus the virus that has completely mutated because of radiation...... It has completely become a thing that has nothing to do with human beings.

Where there should have been fingers and palms, only a pair of thick and sharp claws remained, and in the bare places such as the chest, shoulders and back, there were patches of fine black scales embedded in the erosive flesh and blood, Qi Lin noticed that although the first shot fired by the big man beat the monster's chest into a blur of flesh and blood, but in the place protected by scales, it was still intact.

"These scales ...... It should have a protective ability that is no less than that of a ceramic insert......"

The monster that jumped in with the roof of the car stood between Dahan and Qi Lin, a scaly tail that came out of its jeans and dragged behind it, constantly slapping the floor of the carriage.

The monster had no eyes, but the big man felt that it was staring at him, and he couldn't help but panic, and his hand holding the bullet trembled, and the deer bullet with a transparent plastic shell filled with steel balls fell to the ground, rolling to the monster's feet.

"......" Dahan cursed in his heart, and hurriedly stretched out his hand to the bullet belt on his chest, wanting to find another bullet.

At this moment, the big dog that had not made a sound before suddenly rushed to the edge of the cage and barked at the monster -