The poisonous pill's spirit was initially the inner core of Ghost Mo, which was a top-grade spirit beast. It was formed after Ou Yangming refined it using a unique power.

In the secret realm, it underwent a wonderful change after devouring too many Plant Poisonous Pills, where it eventually gained wisdom.

The change was considered one in a million. If Ou Yangming did not possess the Heavenly Phoenix Fire and the Devouring attribute and had not provided sufficient Plant Poisonous Pills, the poisonous pill's spirit could not have been born.

Nonetheless, since it was successfully born, it naturally possessed superb abilities that could not be owned by ordinary powerhouses.

It was worth noting that any form of poison was a delicious meal to the poisonous pill's spirit.

The poisonous fog that was released by the Insects was extremely toxic indeed, to the extent that it could slowly erode the Beast King Sect's Big Mountain-guarding Formation. If ordinary people came into contact with the fog, they would have been eroded into pus right away.

On the contrary, the poisonous pill's spirit lived freely like a fish amidst the poisonous fog.

In the beginning, the poisonous fog was dense, but it could not conceal everything yet. Since the 3 insect Venerable Ones were also paying attention to it, the poisonous pill's spirit dared not overdo it when it wanted to absorb the poisonous gases in the air. It was afraid of causing too big of a movement, which would catch the Venerable Ones' attention.

Nevertheless, the poisonous pill's spirit was suddenly stunned at this moment. The centipede-like spiritual body got up high.

Poisonous fog had already filled the sky. As far as one's eyes could reach, colorful poisonous gases were entangled, causing one to be afraid.

The intensity of the poisonous gases had even possessed a certain substantial trait, by which even a Venerable One would not dare to release mental power into them.

One's mental conception was invisible but one must be tired of living to have the guts to release it into a poisonous fog of such intensity.

On the other hand, the connection between Ou Yangming and the poisonous pill's spirit came from a mysterious power, which was why he could connect with the spirit without regarding the interspatial distance and the environment between them.

The poisonous pill's spirit looked around it and slowly grew in size.

It was a spiritual body without a real physique. If it had sufficient energy, it could even become 5,000 kilometers long.

After receiving Ou Yangming's instruction, the poisonous pill's spirit made its body grow as long and as big as it could. With that, the surface area of its body that was in contact with the air increased by a few times.

When the centipede's size increased until the limit that could be maintained by it at the moment, it used its legs to carry the poisonous pill.

Following that, its body quivered slightly as the poisonous fog around it gushed into its body crazily.

"Run!"

Ou Yangming closed his eyes. Through the mysterious connection between them, part of his mental conception was attached to the body of the poisonous pill's spirit, allowing him to sense its state and the environment around it.

Therefore, he immediately gave it an order.

The giant centipede instantly moved its legs and ran fast amidst the poisonous fog.

Even so, it maintained an incredibly stable rate when it ran.

At the same time, abundant poisonous fog flowed into its body. After being cleansed and refined by its large and long body, the poisonous gases' essences were delivered into the poisonous pill.

The centipede was like a machine that would never be exhausted as it kept absorbing poisonous gases around the Big Mountain-guarding Formation. Having said that, under Ou Yangming's deliberate control, it did not go all-out. Instead, it kept shifting about to absorb the gases so that the overall intensity of the poisonous gases was maintained on a steady level.

On the top of the mountain, Yuqi the Venerable One stood proudly and focused on the poisonous gases outside the big formation. Although he looked like he did not attach much importance to them, he did.

The most critical point of the Insects' invasion was not the fight between both parties, but if the Insects could break through the Beast King Sect's Big Mountain-guarding Formation.

As long as the big formation remained, the Beast King Sect would be as stable as a rock. If not, even if the top-grade powerhouses could escape from the war, if plenty of the ordinary disciples were killed, the sect's foundation would also be shaken.

This was why Yuqi the Venerable One constantly observed the poisonous gases outside the big formation.

As the 3 races from the Insects released poisonous gases faster than before, the intensity of the gases accumulated outside the Big Mountain-guarding Formation increased. Once the intensity reached a certain level, the big formation would be seriously affected.

By then, it would be time for Yuqi the Venerable One to adopt some unique backup means.

Despite that, even though the means were powerful, they would cause some negative impacts on the formation's foundation, which was why Venerable Ones from past generations would not anyhow use them unless it was absolutely necessary.

However, Yuqi the Venerable One found it strange because while the poisonous fog kept becoming more intense, each time it reached a certain level, it seemed to become less dense again.

Subsequently, the 3 races from the Insects would continue to spit poisonous gases to increase the poisonous fog's intensity, but the intensity reduced again after it arrived at a level.

Yuqi the Venerable One twitched his mouth. Even he became baffled.

'What exactly are the insect Venerable Ones up to?

'Are they only using the poisonous gases as a camouflage? Are they secretly using unnoticeable tricks?'

Yuqi the Venerable One released his mental conception and connected it with the Big Mountain-guarding Formation to scan every corner on the mountain.

The big formation's controller was the only one with the authority to do that. It was a remarkable tool that could be used to monitor the situation inside and outside the formation, and it could also be used to overlook the outside world. That said, since the periphery was filled with poisonous fog, the big formation could only monitor the situation inside.

Even after a round of scanning, Yuqi the Venerable One was surprised because there was nothing unusual inside the sect.

In spite of that, he dared not relax at all because the situation was too odd.

In actuality, he was the one that sent Ou Yangming's poisonous pill out of the big formation. Nonetheless, everyone thought that the young fellow only wanted his poisonous pill to slightly absorb the poisonous gas in the outside world so that it could be a bit more powerful.

Who knew, the poisonous pill had given birth to a spiritual body, which was so mighty that it could affect the poisonous fog so much.

This had exceeded their understanding, hence even Yuqi the Venerable One never thought about that.

The Venerable One was not the only one that noticed the ongoing situation.

Immortal Fox furrowed its eyebrows and asked, "This is strange—why does the poisonous fog keep changing? Are the Insects up to something?"

The other top-grade Spiritualists frowned as well. The situation was advantageous for them, but it exceeded their understanding. At times, such a situation would be more frightening and worrying than if the Insects suddenly went all-out and were going to erode the Big Mountain-guarding Formation.

This was because the powerhouses had the experience to counter the former no matter how dangerous the situation would be. As for the latter, though the change seemed better, nobody knew if the formation would crumble soon.

As such, those that were more well-informed were more worried.

Bear Li blinked and asked, "Sir Venerable One, this is your trick, isn't it? Can you teach us so that we won't be baffled anymore?"

Everyone focused on Yuqi the Venerable One at once. They were eager to find out about the truth.

They suddenly came to a sudden realization after hearing what the spirit bear said. Yes, this was the Beast King Sect, which had a foundation that had been inherited for countless years. If Yuqi the Venerable One kept watch over the sect and controlled the Big Mountain-guarding Formation, nobody knew if he could develop wonderful abilities.

Not to mention outsiders like Immortal Fox and the rest, even Mao Jianbi and the others thought the same.

Yuqi the Venerable One was dumbfounded for a while, and he had a weird look in his eyes.

'Motherf*cker, how would I know what's going on?'

Nevertheless, seeing how eager the powerhouses were, Yuqi the Venerable One could not bring himself to tell the truth.

He exhaled deeply and cast a mysterious look at the people as he uttered, "It's confidential, so I have no comment."

Immortal Fox and the others shrunk their neck. They expected Yuqi the Venerable One not to reveal the details. After all, it was certainly a core secret, which was probably only known by very few people from the Beast King Sect.

The only thing was that they felt slightly regretful.

That being said, since Yuqi the Venerable One had such a marvelous trick, they stood a higher chance of being victorious.

※※※※

Outside the Big Mountain-guarding Formation, in front of the Insects' formation, it was chaotic.

The Insects' formation comprised elite powerhouses from the 3 races. There were no top-grade spirit insects, but there were high-rank and middle-rank ones.

Moreover, the spirit beasts' biggest trait was they possessed poisons that surpassed that of their kind.

Even among powerhouses from the same race, despite having the same living environment, they were adept in different aspects.

The only specialty of the insects that were gathered here was their poisons, which were far more intense than that of their peers. Even if they were only half-spirit beasts, they must not be underestimated.

However, the insects seemed to be in poor states at the moment.

They did their best to squeeze their bodies to release poisonous gases that had been accumulated for some time. Under the control of the 3 Venerable Ones, the gases gathered and attacked the Big Mountain-guarding Formation without any reservations.

Theoretically, the big formation was formidable, but it would also be seriously affected after being eroded by the poisonous gases for a long time.

The insects had almost exerted all of their forces through their hearts, livers, and lungs, but the Big Mountain-guarding Formation was as tough as it was from the start, so much so that it did not seem to have been shaken at all.

Upon realizing this, the 3 insect Venerable Ones looked at each other in disbelief.

This was because they knew it was not because one of them had made a mistake, but because something was too unusual about the big formation.