He Zhiyuan didn't bring all the biochemical creatures this time, but the number of biochemical creatures in the miniature barracks was at least a few dozen.

These biochemical creatures are relatively monotonous - there are only three types of biochemical creatures: Blade Brontosaurus, Dragon Scorpion, and Water Arrow Celestial. But every biochemical creature is equipped with the individual weapon of the Zaka Zerg.

The combination of metal and beasts, the combination of technology and savagery, is extremely fierce and sharp, giving people a rather shocking visual impact.

What's more, He Zhiyuan, these biochemical creatures, are not just good-looking......

Armed to the teeth, the fierce, and incomparably disciplined biochemical creatures are enough to crush most of the underground monsters. Coupled with the fact that there is Wangcai and the Golden Thunder Dragon Beast team as the backbone and leader, the combat effectiveness will be even stronger.

After Wangcai was released, he looked quite excited - it was quite surprising that this little thing, who was originally timid and only interested in food, was now excited about killing.

It seems that after a drastic evolutionary process, this little thing is indeed a different temperament.

However, for He Zhiyuan now, it is also a good thing that Wangcai has become more ferocious.

Wangcai can command the Golden Brontosaurus, and naturally he can also command ordinary biochemical creatures. At this moment, a group of underground demonic beasts happened to emerge from the dark depths of the earth, and they immediately became the target of prosperity.

With a loud roar, Wangcai instantly turned into a golden afterimage, and took the lead in rushing towards these underground demonic beasts. And the Golden Brontosaurus and the biochemical creatures behind him also rushed towards those underground demonic beasts almost at the same time.

A fierce battle ensued.

Underground Demonic Beasts have an absolute advantage in numbers, and new Underground Demonic Beasts are constantly appearing in the shadows to join the battle. And this mine cave secret realm. After all, it is the home of these underground monsters, and fighting here, the combat power of these underground monsters will definitely have a bonus.

If He Zhiyuan had released only a few dozen ordinary biochemical creatures, I am afraid that he would have been defeated long ago.

But He Zhiyuan, these dozens of biochemical creatures, are heavily armed monsters armed to the teeth, and their strength is much stronger than ordinary biochemical creatures.

What's more, there is also a strong and perverted backbone in this group of biochemical creatures.

The Golden Thunder Dragon Beast, which has the first-level strength of the god body, is almost full of killing weapons, claw tearing, mouth biting, kicking, tail sweeping, and charging hand cannon bombardment...... However, the three Golden Brontosaurus were like three flesh harvesters. stirred up a bloody storm in the sky.

However, these three golden thunder dragon beasts are compared to Wangcai. But it seems quite "gentle".

At this moment, Wangcai has completely turned into a killing god. His movements were so fast that they could barely be seen, and from a distance, Wangcai swept back and forth like a golden hurricane. And all the underground demonic beasts that were swept up by this golden hurricane would instantly turn into a puddle of blood and flesh.

Just a few minutes. I don't know how many underground demonic beasts died at the hands of Wangcai.

In front of such a perverted Golden Brontosaurus squad. The underground demonic beasts that were supposed to have an absolute advantage were quickly defeated. Wangcai led the biochemical troops to rush and kill. He repelled countless underground demonic beasts and left behind hundreds of corpses of underground demonic beasts.

After the victory, the biochemical and biological troops quickly cleaned up the battlefield and looted hundreds of demonic cores of underground demonic beasts. The unification was handed over to Wangcai.

Wangcai took out a nano storage box—this nano storage box was the one He Zhiyuan got from Nian Yonglie—and put all the demon cores into it. Then he led the biochemical troops towards the deeper part of the secret realm of the mine.

He Zhiyuan, who witnessed the whole process, nodded secretly. He is quite satisfied with the monster farming efficiency of the biochemical biology army led by Wangcai, and it seems that the monster farming matter will be handed over to Wangcai. And He Zhiyuan himself has other plans.

He Zhiyuan himself is not good at area killing skills without using ultimates and big killing weapons, and when it comes to the efficiency of monster farming, it is really not necessarily stronger than Wangcai. So in the matter of farming monsters, there are not many more of him, and no less of him. In this case, He Zhiyuan wanted to try his luck in the deeper part of the secret realm of the mine.

In the map released by the military of Suluo City, there are four layers of secret realms in the mine. However, with the exception of the first layer, the rest of the levels have almost zero exploration. The information given by the military in Suoluo City is also quite limited.

But one thing is for sure, the lower the mining area, the more powerful the underground demonic beast is, and the higher the value will naturally be.

If He Zhiyuan could hunt a few high-level underground demonic beasts, its value would far outweigh that of him farming monsters on the first floor. Even if his character is very poor and he can't hunt high-level underground demonic beasts, he can still go to the lower mining areas to explore the way and provide valuable information for his own people.

Based on this consideration, He Zhiyuan decided to leave Wangcai and biochemical biology troops on the first floor of the secret realm of the mine to continue to farm monsters, while he went to the lower mining area to explore and explore.

With the map of Langqiu, He Zhiyuan is quite clear about the terrain of the first layer of the Mine Cave Secret Realm. Without much effort, He Zhiyuan had already found the passage to the second layer of the Mine Secret Realm.

What made He Zhiyuan a little surprised was that the connection between the first and second layers of the Mine Cave Secret Realm was actually a portal.

It's not easy to set up a portal, it requires a high-level Monster Master, and a lot of precious materials - obviously, this Mine Secret Realm was really not an easy place in the first place. What's even more surprising is that the fact that this portal has been in operation for at least three hundred years, according to the records of the military in Sora City, is still in normal use, which highlights its extraordinaryness.

You must know that the people of the Beast God Continent arrange portals completely by relying on some kind of experience and intuition, and the portals usually arranged are very unstable, and they rarely have long-term effects. However, with the technological means of the Zaka Zerg, it is easy to arrange a portal that can work for hundreds or even thousands of years, but the portal arranged by the natives of the Beast God Continent can rarely operate for more than ten years.

However, since he met Zhi Tianluo, He Zhiyuan knew that there were also perverts in this world, and someone could arrange a portal that could operate for more than three hundred years, although it was incredible, it was not completely impossible.

So he didn't feel for long, He Zhiyuan collected his mood and entered the portal.

With a slight feeling of weightlessness in front of him, He Zhiyuan had already stepped on the ground on the second floor of the secret realm of the mine.

Complex, cobweb-like mine paths. Indiscriminately discarded, old mining equipment. and sporadic veins of soul stones. And the underground monsters that are everywhere in the shadows, extremely arrogant and not afraid of humans at all...... Aside from the darker light, the second floor of the Mine Secret Realm seems to be no different from the first floor of the Mine Secret Realm.

However, He Zhiyuan saw the difference at a glance.

First of all, the soul power stone veins in this second-layer mining area are obviously denser than those of the first layer, if you organize a certain number of people, you can already produce a lot of soul power stones in this second-layer mining area......

Of course, for the current He Zhiyuan, this is not important. The important thing is that the underground demonic beasts in the second-layer mining area are obviously a little different from the first-level mining area.

The one with the most underground demonic beasts in the first-floor mining area is the giant armored rat that Xuanhua once mentioned. In addition to the Giant Armor Rat, the other Demonic Beasts are also Monsters with the same strength and value as the Giant Armor Rat.

But as soon as he entered the second-layer mining area, He Zhiyuan immediately saw a group of earthworm-like underground demonic beasts covered with golden scale armor - this was a golden-scaled earthworm, in Xuanhua's mouth, it was an intermediate underground demonic beast that could only be hunted by the elite team of the Phoenix Legend Alliance.

And in the underground demonic beasts next to these golden-scaled earthworms, some He Zhiyuan knows, and some He Zhiyuan doesn't. The ones He Zhiyuan knew were all intermediate underground demonic beasts with the same value as the golden-scaled earthworm, and those he didn't know were obviously too.

Of course, even in the second-tier mining area, the Giant Armored Rats are still the most numerous underground demonic beasts - this kind of underground demonic beast with the most widespread distribution and the largest number is indeed worthy of its name. So if there is really a way to capture this kind of magical beast in large quantities, it will really be very beneficial......

It's nice to have a subordinate who can use his brains......

However, these mid-level underground demonic beasts are still not He Zhiyuan's target - their value is certainly much stronger than that of low-level underground demonic beasts, but this is definitely not the limit of He Zhiyuan's ability.

What He Zhiyuan wants, at least those high-level demonic beasts, are only weaker than super underground demonic beasts like the one-horned golden immortal-top-level underground demonic beasts like the one-horned golden immortal, of course, He Zhiyuan can't hunt them, but he knows in his heart that hunting top-level demonic beasts will inevitably consume more energy, more time and energy, and on the whole, it should be more cost-effective to hunt high-level underground demonic beasts.

The plan to hunt the top-level underground demonic beasts can only be hunted according to Xuanhua's battle plan after waiting for Nuyi and the other three girls to join, so as to have good efficiency. It's just that if he is alone, it is better to hunt high-level underground demonic beasts.

The high-level underground demonic beast should be active on the third layer of the secret realm of the mine. However, now He Zhiyuan no longer has a detailed map, and it is really not easy to find the entrance to the third layer of this mining cave secret realm......

Relying on the dual assistance of the Demon Eye Insect Detection System and the Shadow Pupil, He Zhiyuan's level of deafness and clarity in this secret realm of the mine cave is still above these underground demonic beasts. It was also relying on this advantage that He Zhiyuan carefully avoided most of the underground demonic beasts and did not waste time on them.

Of course, he couldn't avoid all the underground monsters. After all, these underground demonic beasts are really elusive and unpredictable. If you encounter something that you can't hide, He Zhiyuan will cook it easily, no matter how small this mosquito is, it's meat.

Just fight and hide. Soon, He Zhiyuan had been exploring the second floor of the secret realm of the mine for more than half an hour. With the assistance of the Demon Eye Insect Detection System and the Shadow Pupil, in the past half an hour, He Zhiyuan has carefully explored a considerable area. However, the passage leading to the third floor of the Mine Secret Realm was still hidden in the mist. (To be continued......)