Immortal cultivation starts with copying.

Three days later, Chen Yunhao was sent to the outside world by Tianyan Mansion while he was meditating.

After all, we were in an unfamiliar sea area, and it was the middle of the night.

The ocean is very lively after nightfall, because many sirens are nocturnal and hide during the day, and this time period is exactly when they hunt.

When Chen Yunhao was sent out by Tianyan Mansion, he was only two or three feet above the sea surface.

As soon as he appeared, a huge mouth emerged from under the sea and bit towards his legs.

Chen Yunhao snorted coldly, waved his hand downwards, and a green sword light slashed through the air, directly cutting the big fish monster covered with fangs into two halves.

As the blood spread, the sea became more lively. In a short while, the siren was eaten by other sirens.

The ocean was pitch black after nightfall, and it was impossible to tell the direction.

Chen Yunhao boarded the flying boat and set off in a random direction.

Within half an hour, they found a deserted island.

This deserted island is less than a mile in circumference and has no grass growing on it.

When Chen Yunhao landed on the deserted island, he saw traces of animals crawling on the island, and they were traces left by huge creatures.

Chen Yunhao guessed that it should be a sea snake, a siren, as thick as a bucket and three or four feet long. He could also smell a faint fishy smell when he got closer.

It's different from the fishy smell of fish in the sea, but a disgusting fishy smell.

Chen Yunhao decided to spend the night on this deserted island. He didn't know the direction, so it was normal for him to run thousands or tens of thousands of miles in one night. In order to avoid going the wrong way, he could only wait until dawn to set off again.

To be on the safe side, Chen Yunhao took out the Tiangang Formation for the first time.

He waved his hands around repeatedly, and thirty-six formation flags were placed within a few dozen feet around him. He held the formation plate in his hand, found a clean place to sit down, and began to meditate and practice.

Less than an hour after he entered into meditation, the formation plate at his hand began to vibrate slightly, and a faint light flickered.

Chen Yunhao woke up in shock. Although there was a formation restriction between them, he could still sense a sea monster attacking the Tiangang Formation.

Chen Yunhao pointed at the formation plate with two fingers, and then the thirty-six formation flags flashed with light, changing from a completely defensive state to an integrated offense and defense state.

Outside the Tiangang Formation, it was a giant sea snake that was attacking the formation.

Moreover, it is a third-level early stage siren, which is equivalent to the early stage of Jindan.

This is the thick tail of the sea snake, whipping the Tiangang Formation like a whip.

This island is where it usually lives. It will naturally not give up if it is suddenly occupied by someone!

Chen Yunhao held the formation plate in his hand and turned left and right several times in the Tiangang Formation. He came to the edge of the formation and only then could he see the full picture of the sea monster outside.

The early stage of the third level siren made him feel more at ease. Even without relying on the formation, he could easily defeat it.

However, Chen Yunhao has been in the boundless ocean for so many years and has some understanding of some sea monsters in the ocean.

He knew that this sea snake was extremely poisonous and could spit out poisonous mist. Even if a cultivator in the Jindan stage smelled a little bit of it, he would feel dizzy at best, or die on the spot at worst.

Therefore, this kind of sea snake is a more difficult sea monster to deal with. Now that the Tiangang Formation has been set up, the easiest thing to do is to lure the sea snake into the formation.

Relying on the power of the formation and his cooperation, the mermaid can be captured without any danger.

Chen Yunhao lightly drew two lines on the array plate with his two fingers, and a gap appeared in the originally airtight Tiangang array.

This mermaid was quite smart. It swam back and forth at the gap in the formation twice, and even stretched its tail into the gap, probing back and forth several times.

But after all, the sirens were not as patient as humans, and they had never seen human formations. After several attempts and seeing that there was no danger, they dived into the Tiangang Formation.

Chen Yunhao tapped the array plate lightly with his finger again, and the gap was restored to its original state.

The Tiangang Formation has thirty-six flags, which means there are thirty-six variations, that is, thirty-six ways to trap and kill the enemy.

Although Chen Yunhao had already refined the Tiangang Formation, this was the first time he used it in actual combat!

He held the formation plate in his left hand, and put two fingers of his right hand together to draw a symbol on the keyboard.

This symbol is the same as the one used to make talismans, all written with runes, this is a fire rune.

After the sea snake entered the Tiangang Formation, what it saw before its eyes was not the familiar island, but a sea of ​​fire.

Rolling magma slowly emerged from the ground, and flames in the sky fell like falling meteors, continuously.

The siren turned around and wanted to retreat, but found that the way it came had disappeared and turned into a place full of earth flames and sky fires.

“Hiss…hiss…”

The sea serpent siren hissed, twisted its huge body, and floated into the air.

All third-level sirens can fly, but some are good at flying, while others can only perform simple levitation.

The mermaid in front of him was indeed very good at flying. Its body was like a loach, and its shape was extremely flexible and changeable.

However, this is only the first level of change of the Tiangang Formation, and its power is the smallest.

Of course, there was also the factor of Chen Yunhao testing the formation. Since he obtained the Tiangang Formation, he had never used it in actual combat.

This time I also intend to use this siren to practice.

Chen Yunhao drew another rune on the turntable, and the scene of raging flames suddenly changed.

There was a strong wind, yellow sand filled the sky, and huge rocks were circling in the air like meteors.

Huge rocks hit the body of the mermaid. Although it tried its best to dodge, the rocks moved in the air by the wind left no trace and could not be avoided just because it wanted to.

The huge rocks shattered after hitting the body of the mermaid, but with the howling of the wind, the broken rocks quickly turned into huge rocks again.

This second change only lasted for four or five breaths before Chen Yunhao changed to the third change.

From the siren's perspective, the sky was filled with yellow sand one moment and turned into ice and snow the next.

The cold wind was howling, and huge ice cones fell from the sky. The extreme cold caused the mermaid's body to become stiff and her reaction to become slow.

Although the siren had thick skin and tough flesh, the ice cones as thick as thighs falling from the sky still caused the siren to suffer great pain and scream continuously.

The siren was also feeling extremely frustrated at this time. She didn't see any human figure and she really couldn't use her strength. It was all in vain that she breathed out that poisonous mist.

Chen Yunhao switched through five or six different Tiangang Formations in succession, leaving the sea monster covered in wounds and exhausted. Finally, he used the Qingmang Sword to cut off the sea monster's huge head.

This sea snake has a poison sac in its mouth, which is also a treasure. Chen Yunhao has his own use for it.

What's left are snake gall, snake tendons and snake skin, all of which are useful.

Although it is not as good as the demon corpse in the transformation stage in his storage bag, it can still be exchanged for a lot of spirit stones.

There was also the demon pill, which was directly absorbed by the ancient mirror.

After the demon pill was absorbed by the ancient mirror, it turned into a stream of energy and fell on the sleeping spirit of the weapon.