Xia Rufei tried hard to control Qu Shuang Fei Jian and Biyou Xian Jian and continued to attack the camel.

His mental power control is very accurate, and the camel thorn will not dodge, so he can accurately slash the Biyou Fairy Sword and Qu Shuang Fei Sword at the same position.

However, even so, the two consecutive attacks at the same position only left a white mark on the camel thorn. I'm afraid I don't know how many more times it will take to cut it off.

Moreover, after the camel thorn was attacked twice, when facing Xia Rufei's third attack, it would have actively released thorns to interfere with the flying sword, making it difficult for Xia Rufei to control the flying sword to slash the same position.

The thorns of camel thorns can also be retracted, so the attack is almost infinite.

Xia Rufei tried it a few times and then took back the Qu Shuang Fei Sword and the Biyou Fairy Sword because he knew that such an attack was meaningless.

If his cultivation level reaches the Nascent Soul stage and the level of the flying sword is higher, he may be able to directly sweep the camel thorn bush by relying on his strong attack.

But under this situation, it may be difficult to measure the time he took to deal with this camel thorn. If he wants to successfully reach the location of the light spot, he needs to at least remove all the camel thorns on this side, otherwise it will inevitably trigger their attacks.

There are at least dozens of camel thorns within twenty meters on this side. For safety reasons, more must be removed.

In this way, the time spent is probably in years.

What's more, Xia Rufei saw that after a while, the white seals that were slashed by two flying swords on the camel thorn had disappeared. In other words, the camel thorn not only had amazing defense, but also had very fast recovery.

Seeing this scene, Xia Rufei completely gave up his plan to attack.

Since there is no way to attack with a flying sword, I can only find another way.

Xia Rufei frowned slightly, the first thing he thought of was the formation.

However, it is very particular about what kind of formation to choose. If you choose the right formation, the effect will naturally be very different, and it is likely that you can achieve twice the result with half the effort.

Some ready-made formations are not useful, including the trapping formation that has been tried and tested on the previous several levels of trial towers. They will not have any good results when facing such a large range of camel thorns.

Xia Rufei stood up, took the picnic chair into the spiritual map space, and then slowly walked back to Ling Qingxue.

"Ruofei, how about it?" Ling Qingxue asked with concern, "Are you okay?"

Xia Rufei shook his head and said, "I'm fine! But these camel thorns are squinted here, so it's not easy to deal with them."

"Yes! Their attacks are very powerful. I see that you used the flying sword to attack them just now, but they basically have no effect." Ling Qingxue frowned slightly.

"The direct flying sword attack is definitely not good. It is too low in efficiency, and its recovery ability is quite strong. The speed of damage caused to him is not enough to keep up with its recovery speed, which is equivalent to in vain." Xia Ruofei said, "So I consider using formations to deal with them."

Speaking of this, Xia Rufei looked at Ling Qingxue and asked with a smile: "Qingxue, if it were you, what kind of formation would you choose to deal with this camel thorn?"

Ling Qingxue tilted her head and thought for a while, saying, "I don't know the formation either! What should I say about this? But when dealing with this plant, fire attack should be more effective!"

Xia Rufei couldn't help but lit up when he heard this and said, "It really reminds the dreamer of a word! I analyzed the advantages and disadvantages of several formations, but I didn't expect the simplest truth! Qingxue, you are right, using fire attack should be the best effect!"

Ling Qingxue couldn't help laughing and said, "Ruofei, you might be coaxing me, right? You wouldn't have imagined such a simple truth, and you still need me to remind me?"

Xia Ruofei smiled and said, "Sometimes it's like this. Thinking too much can easily complicate simple problems! Of course, whether fire attack is effective for this camel thorn remains to be verified, but this is a good idea!"

"Then it depends on you!" Ling Qingxue said happily. She felt that it would be helpful to provide Xia Rufei with some ideas.

Xia Rufei nodded and said, "I think about it, what kind of formation is good to use."

Xia Rufei obtained a lot of ready-made array diagrams from the inherited jade talisman. In addition, his level of formation paths is no longer the same as before. Many array knowledge has been integrated, and he can also adjust and transform it according to the array diagrams of his predecessors. For example, the previous trapping formation was transformed by him based on several ready-made array diagrams, and the effect is surprisingly good.

Xia Rufei quickly passed the formation diagrams he had mastered in his mind. There were many fire attack formations, but they really didn't meet the requirements.

First of all, the range of this formation must be large enough.

This ring-shaped area formed by camel thorn clumps has an outer ring diameter of at least one kilometer and an inner ring diameter of about 950 meters. In other words, the depth of camel thorn clumps is about fifty meters.

When Xia Rufei uses fire attack, he must have a large enough range of formations to cover at least one kilometer of area.

The array diagrams recorded in the inheritance jade talisman are not without large ranges, but among the formations dominated by fire attack, such a large range is relatively rare. There are one or two, and Xia Rufei is not particularly satisfied with the power and effect.

He couldn't help but smile bitterly and said in his heart: It seems that he still has to change the formation by himself...

This is obviously time-consuming, but no matter how you calculate it, it is faster than using brute force to remove camel thorns.

Seeing Xia Rufei thinking seriously, Ling Qingxue didn't dare to disturb her, so she stood quietly aside.

It is naturally not that easy to change a formation.

Xia Rufei simply took out two chairs from the spiritual map space and said, "Qingxue, sit down and rest first! I have to think about how to arrange the formation!"

Ling Qingxue said obediently: "Well! Don't worry, think about it slowly, no one is urging us..."

As soon as she finished speaking, Xia Rufei found another line of prompt text appeared in the field of view of her perception mirror: The fifth-level chain of tasks of the Trial Tower is opened, the first ring cracks the Star Fern Spike Ring and obtains the fourth-level task reward of the Trial Tower. The task time limit is four hours. If the timeout is not cracked successfully, it is considered a failure of the task. The journey to the Trial Tower is over. After two hours, the task reward at the center of the Star Fern Spike Ring will gradually decrease with the passage of time. If four hours are spent, although the first-level task can be determined to be completed, the fourth-level task reward of the Trial Tower will be cancelled.

Xia Ruofei couldn't help but burst into laughter and cried. He looked at Ling Qingxue and said with a wry smile: "Qingxue, your mouth is so bright! You can come whatever you say..."

"What's wrong?" Ling Qingxue was confused.

Xia Rufei said: "I just received a task prompt. The thing in front of us that looks like camel thorns is called Star Fern. Cracking this Star Fern Spike ring is the first ring of the chain mission on the fifth level of the trial tower. We must complete it within four hours, that is, within eight hours, otherwise we will be judged to have failed the trial and will be directly teleported out of the trial tower. And we'd better complete it within two hours, that is, within four hours, otherwise after more than two hours, the rewards of our previous level of mission will gradually decrease until it is completely cancelled."

Ling Qingxue widened her eyes. She already knew that Xia Rufei had received the reward from the Perception Mirror when completing the task and could receive the task prompt as soon as possible. However, she was still very surprised by this task limit.

"No!" Ling Qingxue said, "That is the reward for the fourth floor of the Trial Tower. Why should we limit ourselves through the fifth floor tasks? This is unreasonable!"

Xia Ruofei smiled and said, "The rules are set by others, and it is up to us to decide whether they are reasonable or not. Besides, you just said that we have not been under any dangerous test on the fourth floor of the Trial Tower, so it doesn't matter whether we get the reward or not!"

"I'm just talking!" Ling Qingxue said coquettishly, "We have all completed the task, and we have completed it with a record breaking. Why don't we give rewards?"

Xia Ruofei laughed and said, "It makes sense, so we will solve all these star ferns as quickly as possible and complete the task within the specified time! No one can stop us from taking our own rewards!"

Xia Rufei was so arrogant that Ling Qingxue couldn't help but show a hint of confusion in her eyes. She looked at Xia Rufei and said, "I believe you can do it! Come on!"

Xia Ruofei nodded and said, "Sit down and rest. I have to think about the formation..."

"Just use the time flag!" Ling Qingxue said, "This way you will have more time!"

Xia Rufei slapped his forehead and said, "It's really... I seem to have a short circuit in my mind today! I ask you to remind you every time, maybe I'm so excited after seeing my wife... Hehe!"

Ling Qingxue couldn't help but give Xia Rufei a blank look and said, "This is the countdown. Are you still in the mood to talk about it? Why don't you set up a formation quickly?"

Xia Ruofei smiled and took out the time array flag from the spiritual map space. He waved his hand and sprinkled it directly, and the array flag fell accurately in their respective directions.

Now Xia Rufei is already extremely skilled in setting up the time formation, and it can be said that he just waved his hand.

Xia Rufei grabbed the chair with one hand and said to Ling Qingxue with a smile: "Qingxue, just wait outside the formation! This way you don't have to wait that long!"

Ling Qingxue nodded, clenched her fist and made a cheering gesture to Xia Rufei.

Xia Rufei took the chair and stepped into the formation step by step, then sat down in the formation and began to deduce the transformation plan of the formation in his mind.

He then took out paper and pen from the spiritual map space, quickly recorded some of the ideas in his mind, and began drawing and calculating the picture on the paper.

Xia Rufei was completely immersed in the ocean of knowledge of formations and completely forgot the passage of time.

When he dropped the last stroke, he had already thrown away the scraps of waste paper, and there were still twenty or thirty pieces of useful manuscript paper.

Xia Rufei's eyes showed a look of satisfaction. After complicated calculations, he finally combined the three formation transformations. The newly transformed formation has a maximum range of effect that can reach a radius of three kilometers, and it mainly focuses on fire attack.

Xia Rufei also borrowed the black and sharp flames in the trapped killing formation. This new formation can be said to be very powerful in terms of fire attack.

Xia Rufei picked up all the manuscript papers, read them one by one, and deduced them in his mind, confirming that there were no obvious mistakes. Then he reached out to flick the manuscript paper with satisfaction, stood up and walked out of the formation.

"Ruofei, have you thought about what formation to use?" Ling Qingxue came up and asked quickly.

Ling Qingxue didn't know that Xia Rufei was going to create a new formation. Although this was not created out of thin air, even if it was transformed and integrated on the original formation map, it was very amazing. After all, the formation maps of our predecessors were all tempered and tried to move the structure inside, leave the functions they wanted, and add the attributes of other formations. How easy is this?

Ling Qingxue didn't know all this, but she still admired Xia Ruofei very much.

Xia Ruofei smiled and said, "I have prepared a formation. The specific power is still unknown. Whether I can deal with this star fern thorn ring belt is still unknown, but it is worth a try, right..."

When Xia Ruofei said this, he glanced at Ling Qingxue and asked, "How long have I been in?"

Ling Qingxue said without hesitation: "It's just 30 minutes!"

Xia Rufei was shocked after hearing this. You know, the time array flag he arranged can provide almost ninety times the time flow difference, which means that he has been in the time array for 45 hours, nearly two days and two nights!

Xia Rufei was completely immersed in the ocean of knowledge of the array and did not feel the passage of time at all. He thought he had just entered for a while, and compared to the outside world, time had almost never passed! Unexpectedly, it had been nearly two days and two nights.

After reaching the Golden Elixir Stage, Xia Rufei was already infinitely close to fasting. Even if he didn't eat for a few days, as long as the spiritual energy could be fully replenished, there would be no problem at all. Therefore, he was in seclusion for two days, and he still had no sense of hunger without eating or drinking.

Fortunately, Xia Rufei has the time array flag, otherwise it would not be enough to study a set of arrays just for four hours. I'm afraid he didn't even design the array, and the time came, and then he was teleported away directly.

It took half an hour to study the formation theory alone, and Xia Rufei felt even more urgent.

He said, "Then I have to prepare the materials needed to arrange the formation quickly! Qingxue, you can rest for a while! When I clean up these star ferns, I will take time to accompany you!"

"Yes!" Ling Qingxue nodded and said, "Don't worry, I can't eat hot tofu in a hurry. Now there is still enough time!"

"I understand!" Xia Ruofei nodded and said.

Then, he stepped into the time formation again, took out a large amount of array materials from the spiritual map space, and started to process them in full swing.

It took about three hours, or about two minutes outside, Xia Rufei finally prepared all the materials for this formation.

He waved his hand to remove the time formation and said to Ling Qingxue with a smile: "Qingxue! The formation is ready, I will arrange it now, just wait and see these star ferns burning their bodies with flames!"

:.:m.x
Chapter completed!