It was already ten days late after leaving the auction hall. There were a lot of stalls on both sides of the street. Obviously, many of them had closed their stalls, or they had not set up stalls at all today, so they went to attend the auction.

Lin Chen shook his head and walked directly to the Xiancheng Inn, but at this moment, Lin Chen suddenly felt a chilling gaze from behind.

"Hmm?" Lin Chen narrowed his eyes and couldn't help looking back.

Since he came to the Immortal City, he has been watched almost every moment. After all, it is rare for a warrior with the peak cultivation level of the True Dao Realm to come to the Immortal City, but it is the easiest to be the target of others killing and catching treasures. Therefore, many people look at Lin Chen intentionally or unintentionally, and his soul power is extremely powerful and he can easily detect the gaze of everyone around him. Lin Chen has long been used to this kind of gaze and ignored it.

However, the look he felt just now was like being reminded by a poisonous snake, and the ghost was wandering around him, making people feel thrilled.

He turned his head and looked back, and happened to see the white-haired old man looking at him with resentment, his expression unspeakable viciousness, as if he would not give up until he killed Lin Chen.

"It's him!" A hint of surprise flashed in Lin Chen's eyes.

Lin Chen still remembers the incident in the Fenglei Mountains that day. If it weren't for the seventh-level monster appearing, I'm afraid he, Xia Lan and the little guy wouldn't have escaped the pursuit of the white-haired old man. However, Lin Chen didn't expect that the white-haired old man would actually appear in the fairy city. Similarly, Lin Chen was a little surprised. Since the white-haired old man was in the fairy city, why did the red-haired old man, the younger brother of the white-haired old man, try every means to rob Lin Chen's fairy city invitation post?

The red-haired old man obviously did not know Lin Chen, but happened to meet Lin Chen and after learning that he had an invitation to the Immortal City, he took action. However, Lin Chen didn't know that the red-haired old man didn't know that the white-haired old man was in the Immortal City. Otherwise, he could have asked the white-haired old man to help bid for him some treasures he needed.

"I've been discovered! This kid has such a keen perception." When the white-haired old man saw Lin Chen, he couldn't help but feel a little surprised. You know, there were many people around him paying attention to Lin Chen. He was only one of Lin Chen, not eyeing, but was still noticed by Lin Chen.

Since he was discovered, the white-haired old man didn't want to hide anymore! He looked at Lin Chen coldly, his expression was extremely gloomy.

"Lin Chen, I dare to kill my brother, I swear, you will die miserably!" The white-haired old man spoke coldly. Thinking of the unwillingness in his eyes when the red-haired old man died, his expression became more and more ferocious, and he wished he could remove Lin Chen from pieces immediately.

The auction has just ended at this moment, and the surroundings are very noisy, but Lin Chen's soul power is so powerful. Even if the white-haired old man's voice is small, he can hear it clearly even if it is noisy.

"You'd better pray that you don't meet me outside the fairy city, otherwise you will be the one who dies miserably." Lin Chen sneered.

Lin Chen is now more powerful than in the Fenglei Mountains. The sword intent of time and the sword intent of destruction have made great progress. Even the early stage of the Baoyuan Realm, Lin Chen is confident that he will fight the previous battle.

If he meets an old man with white hair outside the fairy city, he doesn't mind teaching the latter a lesson.

Lin Chen could clearly hear the words of the old man with white hair, and the latter could also hear Lin Chen clearly. The old man with white hair was stunned when he heard this, and he looked a little angry and wanted to speak, but when he thought of Lin Chen's situation when he killed the old man with red hair, he couldn't help but swallow the words of his mouth.

Although the red-haired old man is not as strong as him, he is not much weaker. If Lin Chen can easily kill the red-haired old man, it may not be so easy for him to defeat Lin Chen.

Just as the white-haired old man thought for a while, Lin Chen had turned around and mixed into the crowd and soon disappeared.

Seeing this scene, the old man with white hair couldn't help but look even more gloomy, as if he had been slapped in a furious leopard.

...

In the Fairy City Inn.

Lin Chen sat cross-legged on the bed, turned his hand and took out an ancient book with only a few dozen pages. It was at the auction that Lin Chen used thirty low-grade Yuanshi to capture the ancient book of ancient formations.

According to the host's explanation, this ancient ancient formation book records hundreds of ancient formations, and some of them have even been lost and are quite precious. Of course, if this precious ancient formation book is placed in the hands of the formation master, it is definitely a priceless treasure, but it is worthless in front of warriors who are not interested in the way of formation.

Lin Chen looked carefully.

There are 358 types of formations recorded in this ancient book of ancient formations, ranging from simple to difficult, covering various formations. However, among these formations, Lin Chen did not see them in the formation letter given to him by Mr. Yan.

"Old Yan has not been studying the way of formation for a long time, and the formations he has studied are also the most common formations at present. He doesn't know about this kind of ancient formation." Lin Chen shook his head. The formations arranged in the way of formations and the techniques of setting up formations are very different from those in the ancient times. Lin Chen naturally could not see them in the old formation letters of Yan's formation, which are the same formations as those in the ancient book of ancient formations.

"The chain formation, the chain formations with less than thirty formations are low-level formations, with more than thirty formations arranged, less than 68 formations, and more than 68 formations arranged, and more than 68 formations are advanced chain formations. This formation can arrange up to 108 formations at the same time."

The chain formation, also known as the array formation, is one of the most difficult formations to arrange, and is also an attack, defense, and siege trinity formation. Lin Chen once encountered this formation in the Snowy Night Valley, the inheritance land. At that time, Lin Chen and the little guy were trapped inside. If the little guy hadn't happened to hit the eye of the formation, and the formation arrangement was too long at that time, many places were incomplete, so one person and one beast escaped.

It was because Lin Chen saw a large number of formations arranged by the ancients in the inheritance that he wanted to study the way of formations. Now, as soon as he saw the arrangement of chain formations in ancient books of ancient formations, he was immediately attracted.

"A chain formation composed of one hundred and eight formations, even if a strong man in the Nirvana Realm is trapped inside, he may die!" After looking at the introduction of this formation, Lin Chen immediately became a little excited.

However, it is not so easy to arrange a total of 108 formations and combine 108 separate formations to form a chain formation. Lin Chen is only able to arrange a simple formation now.

"Ho huh." When the little guy saw Lin Chen immersed in the research of the formation, he immediately did not hesitate and lay on the pile of spirit stones. He began to absorb the spiritual energy of heaven and earth again, and cultivated the vitality of heaven and earth.

Originally, the little guy's cultivation level was already at the top level of level 6, and he was only half a step away from entering the seventh level. However, because he came to the Immortal City, the little guy also absorbed a lot of heaven and earth energy, but it also delayed the breakthrough.

After all, the spiritual energy of heaven and earth and the vital energy of heaven and earth are two different energies. Warriors below the Baoyuan realm absorb the spiritual energy of heaven and earth, while warriors above the Baoyuan realm absorb the vital energy of heaven and earth.

The little bull bear absorbs the vital energy of heaven and earth at the top level of level 6. Of course, it is very difficult to absorb and refine. It is precisely because it began to practice with the vital energy of heaven and earth. What the little guy needs when he breaks through is not all the spiritual energy of heaven and earth, but also requires huge vital energy of heaven and earth. Fortunately, this is the fairy city, and the vital energy of heaven and earth in the fairy city is richer than other places.

While Lin Chen was immersed in studying the formation, the little guy worked hard to practice, and a blink of an eye passed in the night.

The next morning.

Lin Chen looked at the ancient ancient formation book in his hand, his eyes were red, and he looked excited: "Okay, okay, okay! So that's it, it turns out that the principle of the combination of serial formations is like this."

Last night, when Lin Chen was thinking about the principle of combining formations between formations.

After a night of exploration and research, Lin Chen finally understood the key.

"The formation is already related to the formation. Simply put, the arrangement structure of the formation can be divided into lines. The formation with hundreds of lines is extremely complicated. The individual formations that arrange the chain arrays must have at least hundreds of lines. Then, the main line of the lines in these individual formations must be connected to the main line of another individual formation."

"The end of the formation must also correspond to the beginning line of another individual formation..."

Lin Chen couldn't hide the excitement in his heart and murmured to himself: "In this way, it would be very cumbersome and complicated to arrange a chain formation composed of 108 formations. However, once the arrangement is successful, it is almost impossible for even a formation master to find a cracking of the chain formation, unless he can crack all 108 formations of the chain formation, and these individual formations are very complicated, and the array eyes are almost no trace to be found..."

No wonder, once this formation is successfully deployed, even if the powerful Nirvana Realm is trapped in it, it may fall.

Lin Chen took a deep breath and closed the ancient book of the ancient formation with joy. He only read a formation in the ancient book of this formation that night. Lin Chen still has a long way to go to make the arrangement successfully. You must know that there are more than 300 types of formations recorded in the ancient book of the ancient formation!

If Lin Chen understands all these more than 300 formations thoroughly, even if he knows nothing about the formation method before, he can become a generation of formation masters. The ancient ancient formation books captured by thirty low-grade Yuanshi are absolutely worth it!

As I was thinking in my heart, a sudden shock burst out suddenly, covering the entire room.

"Hmm?" Lin Chen felt this momentum, and his first reaction was to look at Xiao Baoxiong.

At this moment, the little bear was lying on the ground, surrounded by the rich spiritual energy of heaven and earth that had almost turned into water droplets. The little guy was absorbing these spiritual energy and vitality in big mouths. A stream of powerful aura erupted from it. This momentum was so strong that even Lin Chen felt a little pressure.

"This guy finally broke through?" Lin Chen smiled at the corner of his eyes.

The little guy's situation is obviously about to break through to level seven!

The little bear was about to break through two months ago. Now, after a few days in the fairy city, the little guy finally broke through to level seven.
Chapter completed!