The surrounding space is pitch black and full of eerie feelings.

Jia Yan shook his six long feet, which were full of strength.

Each one is as thick as a chopstick, and even the details at the end are no longer slender, but have a layer of clotted armor to protect those parts that are easily damaged.

If you move a little, you can tear the air in half!

Even Jia Yan himself has an immeasurable powerful force!

The originally slender and thin body was like putting on another layer of armor on the periphery of the body at this time, the armor was thick and strong, and those clots were stacked on the surface of the body repeatedly and repeatedly to form such a scale of armor, it was precisely because Jia Yan had suffered too many serious impacts that his physiology was mutating, and he instinctively chose the direction of defense!

The eleven waist and abdomen are like growing muscles, and pieces of tissue are stacked here, so that the originally weak abdomen is no longer weak and impervious.

The powerful muscles after the third mutation contracted in the abdomen, and Jia Yan could feel that as long as he used a little force, the tail needle at the end of the abdomen could make a sound that pierced the air, stabbing the enemy to death!

As for the tail needle, it also continues to mutate in the direction of perfection at this time!

His length reached two centimeters, and if these two centimeters were added, in fact, the total length of Jia Yan's current body would reach fifteen centimeters.

On the surface of the tail needle, several wounds that were originally bitten by bats are completely gone!

At this time, the whole presents a streamlined shape, which originally evolved from the raw and colonized pliers, so the appearance of the slightly unsightly knot-like structure has become a smooth line like a one-piece molding.

Because of this silky and streamlined shape, Jia Yan can definitely pierce harder objects, that is to say, his attack methods will become more deterrent because of the existence of this tail needle!

Because the mutation was interrupted by the blast wave of the explosion, Jia Yan's current body mainly focused on defense.

In terms of attack, due to the limitation of the size of the body, although it has strength, the length of the mouth needle and tail needle is not enough, and it cannot be regarded as a very lethal weapon.

However, the lost attack power, because of the focus on refinement and condensation in the mutation process, gives him incredible defensive power!

Cellular tissue is like doubling muscle tissue!

And that thick shell armor!

Jia Yan has always been a weak mosquito, and now these defenses have brought him an unprecedented sense of security and self-confidence!

Even in this unknown dark space, Jia Yan felt that his worries and fears had decreased a lot!

He's really strong!

After Jia Yan finished observing his body, he looked up and looked at the passage where he had fallen.

But when I looked up, there was only darkness in my eyes, and I couldn't see clearly at all.

"The pipes in that boiler should be connected to some gap in the ground, and then I fell all the way down the gap and ended up here......"

Jia Yan was analyzing.

One of the most important components of the Northeast Wild Tiger plant is the metal boiler in the second workshop.

So what's the most unique of the boilers?

There may be other things added to it, but the most important thing, no matter how you look at it, is this gap that leads to the underground!

"What's the secret here...... So that the Siberian wild tiger can make purple-red liquid, and even the boiler fired it is the dark night liquid that is stronger than the purple-red liquid! ”

Jia Yan looked around.

It's an empty cave that's not too bright, but some faint algae, growing on the top of the cave, are able to release light, giving the space a little bit of light......

This kind of algae, Jia Yan doesn't know!

He even felt that the oxygen content in the air here far exceeded that of the outside world, and this pure oxygen made him more powerful when he acted.

There are so many weird things.

Fortunately, the huge fiery red centipede that shook in front of Jia Yan's eyes before. It has given Jia Yan a little resistance, and now that he sees something weird, he won't feel like a big deal.

"Let's see if we can fly."

Jia Yan looked at his wings, which had also become wider after the same mutation, with some concern.

His so-called organs comparable to human strength were actually the two wing muscles located on the side of his chest, of course Jia Yan was not completely sure that this part of the strength had reached the human level, but at least the wings gave him the feeling that this was the case.

Now that he is about to fly, Jia Yan is a little worried, if the strength of his wings is not increased too much, he will not be able to fly now.

Don't look at the body is not big now, but the musculature and coagulated shell have made him weigh at least five times or so! And with such a heavy body, relying on the previous wings, it is impossible to fly.

Syllable!

The wings trembled, and Jia Yan found that the sound of the wings was actually much crisper than before.

Bang Bang Bang ......

He controlled his wings and began to slam hard!

The beating frequency, more than 200 beats per second!

Buzz Buzz......

Beat frequency, more than 500 beats per second!

Groaning -

The huge and heavy body finally slowly rose from the ground!

A big stone at the bottom of Jia Yan's heart finally fell.

He now feels that the muscle tissue of the wings is not seriously tired, so he estimates that the frequency of his extreme wing flapping should reach about 700 times, which is even higher than before, and because the body tissues have undergone some subtle changes in adaptation to aerodynamics, his maximum speed is definitely more than before!

As for how fast the limit speed is, we will only have to test it when we have the opportunity to try it.

Jia Yan waved his wings and flew towards the top of his head.

Sure enough, at the top of the cave, there was a huge cavity with a diameter of about two meters!

This is clearly a naturally formed cavity, which should have been formed by the flow of groundwater over a long period of time.

It was covered with large and small raised stones, and these stones were the reason why Jia Yan hit his body when he fell!

So, just fly up this passage and you can return to the factory!

Jia Yan flew for a distance, and then stopped again.

This cave is really weird, and the main source of the secret recipe of the Northeast Wild Tiger Factory is estimated to have been obtained from this underground cave!

Even in the past, the Wa Kingdom built three buildings on the ground, and it was for this cave!

Besides, Jia Yan also saw that huge centipede just now, it really didn't look like a natural product!

This suggests that there may be something strange about this place.

"If you don't explore now, you won't have a chance to come in the future. The fiery red centipede from before was indeed dangerous, but I was able to fly, and he was not much of a threat to me! ”

After Jia Yan hesitated for a moment, he controlled his body to turn around in the passage and returned directly from the same place!

He decided to explore the mysterious cave below.

At this time, more than a kilometer of vertical distance from the ground, the three buildings were alone in the middle of a large forest.

In the past, it was a busy place, but now it is a little quiet.

The roar of the machines on the factory floor stopped, but on the contrary, in those two workshops, there were constantly shouts and angry shouts of workers!

The workers are imprisoned inside the factory by the Siberian Wild Tiger!

The most important boiler was damaged, and the other machines in the No. 2 workshop were also damaged to varying degrees, plus a series of mutations and gunfire, the workers of this factory were like frightened birds. One by one, they submitted their resignations and asked to return home.

The Northeast Wild Tiger and others couldn't suppress it at all, so they had to grit their teeth and detain all these workers!

"Boss, what the hell are you going to do?"

Standing in front of his desk was a young man with glasses.

This down-and-out college student who was recruited from the job fair does not plan to give up his boss at this time, which makes the Northeast Wild Tiger very pleased!

"The next period of time should be the most difficult moment since the establishment of the factory!"

"Just in case, I'll call the senior addict back, and he will deal with the team sent by some unfriendly people, fortunately, I just talked to a big man on the phone, and he has promised that the police and officials on the surface will not do anything to me for the time being, as long as I can solve the team that came secretly, he will soon arrange an excellent official identity for me."

The Siberian Wild Tiger pinched the tip of his nose tiredly, as if all the energy that should have been used up had been squandered at this time.

"That's good, as for the passage in that boiler, now I wonder if you can explain it to me? I've long guessed that most of the potion formulas we produce are substances that don't have much effect, but now that I think about it, the most important thing should be from this boiler that you've been keeping secret from me before, right? ”

The man in glasses asked with some confusion.

The Siberian Wild Tiger looked at him deeply twice, and then nodded: "That's right, this passage, according to my great-grandfather's record, directly connects to a very deep underground. Decades ago, there were seven or eight exploration teams of more than 100 people who went down, but only two people came back in the end. My great-grandfather didn't know exactly what was going on, but he knew that after that, the formula in my hand was matched by the medical staff of the Japanese Kingdom, and the boiler was installed in the workshop on the second floor. Unexpectedly, after several decades, it actually exploded. ”

The Siberian wild tiger was a little embarrassed.

"I see, I just don't know what kind of place is underground! It can actually make more than 100 people in the Wa Kingdom go and never return, and can also use that passage to create these purple red elixirs. It's really incredible! The man with glasses was stunned for a long time before he said in disbelief.

The two chatted a few more words, and the man with glasses said goodbye and left.

After he turned to open the back of the door, the cold words of the Siberian wild tiger sounded.

"You're not going to betray me too, are you?"

The man with glasses grabbed the palm of his hand on the lock of the office door, trembling slightly, but soon, he showed a smiling expression.

"You have the grace of knowing me, and I naturally will not betray you!" After speaking, he closed the door and left......

"That's for the best!"

Inside the closed door, the Siberian wild tiger was a little unclear in the dim light, but it just felt very cold.

To be continued. Little Carvin, so the release was late. What's the deal with tipping, there are very few people tipping today!

Thank you 'safcaf', '878kh', 'I laughed and cried and forgot', 'One season/another silence' and other book friends have rewarded again and again, thank you!

I would also like to thank the 'sasadaeffe' book friends for the 5 6000-word update votes, this step is a certainty, thank you!