The four of them went together, and in front of several houses was a wide field with a radius of black rocks.

"What kind of rock is this?" Tong Bai crouched down curiously and carefully examined the rock.

Suddenly, the door of the house on the far left opened, and several monsters walked silently into the black rock-paved field.

"These monsters seem to be similar to the monsters we killed at the foot of the mountain." Chen Long said.

And Chen Long was thinking in his heart, could it be that the second wave of monsters in the copy appeared? No, it should be the third wave, the first wave is the monster in the lake on both sides of the bone road, the Yamashita Square is the second wave, and this is the third wave.

So, there should be a big boss at the end?

And at this moment, the door of the tallest house in the middle opened.

A creepy roar rang out! The four of Chen Long looked at each other and changed color, and the threat contained in this beast roar was very terrifying!

Immediately after, a tall and mighty monster suddenly jumped out of the middle house and fell to the ground with a bang.

Chen Long and the others, who were nearly 100 meters away, all felt the trembling of the earth.

"Grass, this can't be a mini-boss, right?"

This monster is very different from the monster killed by Chen Long and the others at the bottom of the mountain, the muscles are well-proportioned and strong, and it is generally similar to a human body, but it has two curved tentacles on its forehead, and its arms, knees, and chest are covered with bone armor. It is three meters tall and has a pair of eyes that are blood-red.

"Princess, this monster beast is very strong." Tong Bai said cautiously, "The strength has reached the early stage of the sixth order. ”

The Chen Long who was present was the strongest, his soul cultivation had reached the peak of the ninth order, and his soul cultivation had reached the peak of the seventh order.

But what kind of strength Chen Long is, Yan Qingwu and Tong Bai don't know, they only know that they are only the peak of the monarch. That is, it is quite the fifth-order peak cultivation that Chen Long said.

Before the age of thirty, with the cultivation like now, this is already a super genius.

But the monarch is the monarch, even if it is the peak of the monarch, it is not the opponent of the powerhouse in the early stage of the monarch, not to mention the demon beast.

However, Chen Long found that the monsters here were different from the monsters outside, because they had no wisdom and could not speak.

Outside, although the sixth-order demon beast can't transform yet, it can already communicate with humans.

In other words, the monsters in this secret realm only have instinct to kill, and they don't have much wisdom!

Any living being, if it does not have intelligence, can only be a beast, not a demon.

Although there is no wisdom, only the demon beasts that are killed are more terrifying!

"It's so strong!" Even such a fierce beauty as Yan Qingwu shot shock in her pupils.

After the appearance of the powerful demon beasts, originally, the few low-level fifth-order demon beasts that appeared at the beginning also shrank back timidly.

But the powerful monster kicked with all four legs, shooting at several low-level demon beasts, bone claws flying, and blood rained all over the sky.

Chen Long and the others were stunned, what happened to this monster? Even its kind hunted?

And what surprised Chen Long even more was that after this monster killed the same kind of monster, after the death of those demon beasts, they also had a trace of blood-red thin lines, fluttering and flying towards the powerful little boss monster.

"Damn, this monster hunt between them can also return this blood line? What exactly is this bloodline? ”

I saw the little boss roar, as if with endless joy, it opened its huge mouth, sucked violently, and sucked a few blood-red threads into its abdomen.

"This?" Seeing this scene, not only Chen Long didn't understand, but Yan Qingwu and others didn't understand either.

With a few crackling explosions, the body of the powerful monster became more and more swollen, and the position of the bone armor on its body became more shiny and strong. Look at the breath, it's a little stronger than before the killing.

"Like...... Those blood-red threads, which have a great effect on this monster, can promote their ...... Evolve? Chen Long looked at himself and Ji Ruxue's bodies, each with a thin red thread entangled, "Hurry up!" ”

Chen Long pulled Ji Ruxue and ran away.

"Princess, why are they running? That monster is strong, but it's not the enemy of the four of us, is it? "As a young general of the Yanlong Dynasty, how could Tong Bai run away for no reason?

"If my guess is correct, this should be a Colosseum! The monsters we encountered at the foot of the mountain should be just food and fertilizer! Truly powerful monsters, feed on these weak monsters and strengthen themselves! ”

Yan Qingwu is a smart woman who understands some questions in an instant.

"Princess, then you won't run away, no matter what kind of monster it is, just kill it." Tong Bai said.

"Do you think there's only one powerful monster here? Since there is such a large Colosseum...... There must be a lot of tough monsters, and, look at us! Yan Qingwu pointed at herself and Tong Bai.

"Princess, what is this?" Tong Bai only realized at this time that there was a thin thread of blood on his body.

"With these blood threads on our bodies, it means that we have also become food for monsters!" Yan Qingwu guessed.

Tong Bai was about to speak, when he suddenly heard a beast roar sounding again below them, at the original mountainside! And in the other four or five places on the mountain peak, the same familiar roar came, and in some places even a group of beasts roared in unison, and the sound was earth-shattering!

These powerful monsters seemed to be able to track down the red silk threads on Chen Long's body, and they kept chasing after them.

And Chen Long, the powerful monsters they encountered in the Colosseum at the beginning, the closest to Tong Bai, have been roaring and chasing frantically.

"What a dog!"

Chen Long was very unhappy at the moment, and he didn't know which bastard designed it.

In the square at the foot of the mountain, as long as someone passes by, monsters will be resurrected, and as long as you kill these monsters, you will be stuck with blood lines, so that you will be targeted by more powerful monsters after going up the mountain! Isn't this a cheat?

As long as one monster roars, it will attract more equally powerful monster companions, who would have attacked each other and devoured each other's bloodlines, but after discovering Chen Long and their aliens, the monsters have a new target.

Chen Long turned his head and saw that the monsters chasing behind him had reached as many as three. As they roared, more and more alien beasts let out echoing roars.

"Made, the tiger is not powerful, you are ...... you" Chen Long scolded, raised his hand and took out a bazooka, and shot at the monster chasing at the front.

Rumble!

Although the strength of the sixth-order monster is very strong, and the skin defense is also very strong, it is also a tragic word to be suddenly hit in the eye by a cannonball!

Yan Qingwu saw the bazooka in Chen Long's hand, and was shocked in his heart, "What kind of weapon is this?" ”

Seeing Chen Long take out a bazooka, Ji Ruxue also took out a bazooka and fired at another monster!

Rumble!

The roar of the shell explosion injured the monster, but it did not kill.

"It seems that it will be good when we can strengthen the bazooka!"

The bazooka is very powerful for ordinary people, but it is not fatal for a monster with sixth-order strength.

This is just a monster without intelligence, if it is a demon beast, or a human with sixth-order strength, such a bazooka will not be able to blow them up at all.

Because they have a lot of reflexes, they dodge easily.