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The cartographer mentions in his notes that there is an "Ancient Teleportation Array" beneath this sea area, and that only through this array can be reached in the Organ City, and it is also specifically noted that the "Ancient Teleportation Array" is located in a large whirlpool on the surface of the sea, which is easy to find, but in fact, it is ......

"This, this is too cheating," Yin Jian secretly complained. (Please search, or enter directly to see the latest chapter)

There is nothing else in this sea area, but there are countless whirlpools, densely covered with the sea, and at a glance it looks like a beehive, and it is impossible to tell which is the right entrance.

Yin Jian didn't dare to try them one by one, firstly, there was no extraterrestrial time to play the elimination method, and secondly, if he chose the wrong entrance, he would not be allowed to get into the vicious trap and go in vertically and come out horizontally.

Hanging above the sea, Yin Jian muttered to himself, "Judging from this map, the entrance to the Organ City originally did not have this difficulty, and the ten ** is the labyrinth circle added by the ghost ship owner to prevent outsiders from breaking into the Organ City, if it can be cracked, the real entrance will be revealed." "However, his own cultivation of the magic circle is shallow, and the magic circle of the supernatural power class is quite a little experienced, and the maze class is completely unable to play.

Rumble...... Rumble......

When he was worried, he overheard a series of crashing sounds coming through the tide, Yin Jian suddenly became alert, followed the direction from which the sound came, and flew over a shoal, only to see a huge turtle lying on the shallows, with its tail and limbs all retracted into the shell, and most of the turtle shell was exposed to the water, like a small island.

Around the shell was a group of monster sharks with one-horned heads, and they were swarming into the shell, and the horns on the top of the head were three feet long, so sharp that each impact would rub a spark on the shell

Yin Jian was secretly surprised when he saw this, and waved his hand to release the Great Yan Divine Technique to scan the sharks and the giant turtle.

――Did you detect that Zixia had information about the target in her thoughts, and did you call it immediately?

"Yes"

- The target has been scanned, and the intelligence is displayed as follows:

Jiao Shark (x hundred, health: good)

Overview: One of the four demon clans under the ghost ship owner, a shark spirit with a single horn, and a pack of wolves in the sea

Spiritual Power: 4-star (9 stages)

Attribute: Water

Weakness: Dirt mines

Skill:) Four-grade talent divine power (explosion power increased by 4o.)

Four-rank talent naval combat mastery (all attributes in naval combat are increased by 4o.)

Magic weapon: Four-grade wave breaking cone (single horn on the top of the head)) four-grade armor-piercing

Four-grade puncture

Four-product Detective Auraki (Anti-Stealth)

The divine light swept over the sharks and scanned the turtle shell, Yin Jian looked strange, this time he didn't have to call Zixia's thoughts, he recognized that the giant turtle was his "old friend" Mr. Tian Yuan.

"Jiao Shark" is one of the three major demon clans under the ghost ship owner, and Mr. Tian Yuan is the staff of the Ten Thousand Demon Palace's Lord Poison Dragon Demon Lord, who has participated in the battle against Baicao Valley, and both sides are enemies, Yin Jian originally wanted to sit on the mountain and watch the tiger fight, but after reading the reconnaissance information in detail, he changed his mind.

The Jiao Shark clan followed the ghost ship owner to kill innocents indiscriminately, and all of them were guilty of heavy karma; That turtle master is not, although he was born in the Ten Thousand Demons Palace, he has 60,000 merits, which shows that he is a good person and has a good character.

This made Yin Jian's impression of Mr. Tian Yuan change greatly, and he couldn't bear to sit back and watch him being beaten by the Jiao Shark, so he flew to the battlefield with his sword in a flash, grabbed a stack of "poisonous miasma talismans" from the treasure bag and threw it down.

After several explosions, poisonous clouds covered the coast, and the sharks were caught off guard and were caught off guard, and they were paralyzed by inhaling poisonous smoke. Yin Jian took the opportunity to release four flying swords and slashed indiscriminately, killing nearly half of the Jiao Shark in an instant.

Jiao shark is a tiger in the water, but it is not good at air combat, and it is painful after being poisoned, where do you dare to resist stubbornly, so frightened that you turn around and scatter, and there are several corpses left on the beach.

Yin Jian put away his sword light and landed to clean up the battlefield. The dorsal fin of the shark is the best ingredient, cut it and bake it in the hunting bag, and bring it back to stew "shark fin soup", Xiaoqing's specialty dish.

At this time, Mr. Tian Yuan felt that the shark had escaped, and he was embarrassed to continue to shrink his head and pretend to be dead, turned into a human form and stood up, and gratefully said to Yin Jianzuo: "Young Master Yin, it's been a long time" Thinking back to the various festivals between the Ten Thousand Demon Hall and Yin Jian's family, his smile showed a little embarrassment.

Being in the dangerous "Returning to the Ruins Secret Realm", Yin Jian didn't want to make enemies everywhere, so he deliberately avoided those past grievances, and smiled politely: "Master Turtle, your old man doesn't stay in Taixuan Lake to enjoy Qingfu, what do you want to come to the Returning Ruins Secret Realm." ”

Mr. Tian Yuan did not hide it, and replied calmly: "The old man came to ask for 'Tianyi Holy Water'. ”

Yin Jianxin Dao was as expected, he had checked the rank of this old man with the Great Yan Divine Technique just now, the five-star and seven-stage, and it was time to start preparing for the tribulation.

"Since it's for the 'Tianyi Holy Water, why did you do nothing when you were besieged by the Jiao Shark just now? You old man, you obviously have the strength of a half-step demon fairy, so you won't be afraid of a few sharks, right? ”

Mr. Tian Yuan shook his head and argued with a serious face: "If a gentleman doesn't use his mouth, wouldn't it be insulting for a scholar to fight and kill." ”

Yin Jian disagreed with his "gentleman's creed", secretly laughed at the old man's pedantic, but he was not interested in arguing with him, this guy was originally a turtle spirit, and it was reasonable to shrink his head in case of trouble, and asked him if he could know where the entrance to the undersea trap city was hidden in the whirlpool.

Mr. Tian Yuan smiled slightly: "Young Master Yin doesn't know, these whirlpools you see are all illusions created by the Nine Palace Mystery Array, and the real entrance is hidden behind this magic circle. ”

Although Yin Jian is not very good at maze formations, he has also heard the name of "Nine Palace Traces" for a long time, and when he heard what Mr. Tian Yuan said, he suddenly became interested and asked: "Old man, do you have a way to crack this formation."

Mr. Tian Yuan stroked his horn beard, although he did not answer his question, his arrogant demeanor showed that he was sure of the method of breaking the formation.

Yin Jian asked repeatedly, and Mr. Tian Yuan said with a difficult face: "Young Master Yin, you and I have different positions, if I help you crack the Nine Palace Maze Array, I will be suspected of disloyalty, but if I don't help you solve this difficulty, you will become an ungrateful person again, this is ...... Alas, loyalty and righteousness are difficult to achieve, and the old man really doesn't know what to do."

Yin Jian was already surprised by his pedantic brains, and said angrily: "The cowhide blows very loudly, in fact, you can't crack the Nine Palaces Maze Array at all, right?" Old man, don't pretend, admit frankly that you don't have that ability."

When Mr. Tian Yuan heard this, he couldn't stand it, so he was so angry that his forehead burst into blue tendons, and he said angrily: "What is the Nine Palaces Maze Array, the old man can crack it without much effort."

Yin Jian struck while the iron was hot: "There is no basis for what you say, but you broke it for me to see"

Mr. Tian Yuan shook his head: "That's not possible, otherwise the old man won't be hit by your radical method, if you don't believe it, you can use other problems to test me, no matter the formation or astronomy, geography, medicine and astrology, the old man is proficient."

Yin Jian felt frustrated, and secretly scolded this old turtle for being cunning, how could he have time to fight with him. Turning his back and going, he took out the map of the ruins and re-examined it, trying to find new clues about the entrance to the undersea trap city

His eyes swept over the different colored sections of the map, and he suddenly thought of a difficult problem for Mr. Tian Yuan, so he turned to him and asked, "Old man, do you dare to bet with me?" ”

"How do you bet?" Mr. Tian Yuan asked cautiously.

"I have a problem about the magic circle, and I have not been able to reach a conclusion, if you can solve the answer in a stick of incense, I will admit that you are an expert in the formation, otherwise, you will have to take me into the undersea organ city."

"No problem," Mr. Tian Yuan agreed, "As long as it is related to the magic circle, it will be difficult for the old man." ”

"Don't blow the atmosphere first, wait a minute, you have a headache" Yin Jian spread the map on the sand, pointed to the area divided into different colors, and said: "Old man, listen carefully, assuming that each map can be dyed with no more than four colors, so that the color of the adjacent area is not the same, now what you have to do is to verify the authenticity of this proposition, let's start"

Mr. Tian Yuan didn't take his so-called "problem" seriously at first, but when he listened to it, he smiled and muttered, "Interesting, this question is very interesting, wait for the old man to deduce it"

With that, he sat cross-legged on the sand, staring at the map and pondering.

Yin Jian took out a stick of incense from the treasure bag and lit it and inserted it on the sand, glimpsing the old man racking his brains, he couldn't help but laugh secretly, and said in his heart If you can solve the "four-color problem" in a stick of incense, then it will be called a hell of a yawn, lying on the beach to bask in the sun, waiting for Mr. Tian Yuan to admit defeat.

After a while, when he was drowsy, he suddenly heard Mr. Tian Yuan laughing.

"Haha, the old man has figured it out, this assumption is valid, wonderful"

Yin Jian was so frightened that he got up, and said in amazement: "You, did you really figure it out?" ”

"Of course," Mr. Tempore thought and showed him the derivation process.

Yin Jian glanced at it suspiciously, wiped a cold sweat secretly, and had to admit that he underestimated Mr. Tian Yuan, "This old Wang Ba is really not covered, he actually solved the four-color problem that once stumped many mathematicians with mental arithmetic, and this deduction ability is not much better than that of my Xiaobai."

Turning his head to look at the incense sticks planted in the sand, he secretly breathed a sigh of relief.

"Old man, even if you push the show, you will lose, you see, the incense has already burned out."

Mr. Tian Yuan was very unwilling, and opened the sand pile and said: "Obviously, there is still a small section that has not been burned, and the sea is windy, and the incense burns faster than usual...... Why don't we have another competition? ”

"No problem, Ben Shaoxia doesn't believe that it is difficult for you old turtle" Yin Jian happily responded, and after a little thought, he quickly listed the next line of calculations on the beach.

"When the integer ut2, there is no positive integer solution to the equation u^, you have to prove the truth of this proposition in a stick of incense" Yin Jian patted the sand on his hand, and Mr. Chongtian smiled strangely, "Old man, I can't hide it, this is the magic circle created by the ancient Otherworldly Immortal Fermat Zhenren, the mystery is incomparable, you can take out how much you can do, if you lose again, you are not allowed to rely on the account"

"Even if Young Master Yin puts one hundred and twenty hearts, how can the old man do that kind of thing." Mr. Turtle glanced at the equation, and was immediately intrigued, and squatted on the beach to concentrate on deducing.

In the blink of an eye, the incense stick was exhausted, and Mr. Tian Yuan did not deduce the conclusion of the performance, but he was not in a hurry, so he simply sat cross-legged and concentrated on calculating.

"Old man, time has passed, what are you doing, hurry up and admit defeat" Yin Jian urged beside him.

Mr. Tian Yuan didn't raise his head, and stroked his beard and said indifferently: "The old man admits defeat." ”

"Then don't take me on your way"

Mr. Tian Yuan waved his hand impatiently: "What's the hurry, wait for the old man to unravel this 'Fermat Zhenren, it's not too late to go to the magic circle that has been handed down"

When Yin Jian heard this, he wanted to vomit blood, and secretly regretted that he had chosen such a perverted topic to embarrass him. This old man has been studying endlessly, and if he can't prove Fermat's theorem, he won't move his nest, what can this Nima do if it is counted as ten years and eight years? Ben Shaoxia, this is really called smart, but it was mistaken by cleverness

In desperation, I had to hope that he would do his best to calculate the result, while taking a bottle of soda out of his treasure bag to quench his thirst.

After about a stick of incense, Mr. Tian Yuan suddenly raised his head to the sky and roared, startling Yin Jian and knocking over the soda.

"Old man, what the hell is your name, are you really pushing the show?"

"Of course" Mr. Tian Yuan was full of joy: "These two problems are very enlightening to the old man's practice, Yin Jian Xiaoyou, please accept the old man's worship" and bowed to Yin Jianshen.

Yin Jian hurriedly returned the salute, thinking that although this old man was a little pedantic, his fanatical energy for academics was really admirable, and if he was born in the civilized world, he would be a great master of mathematics.

"Old man, a gentleman is willing to gamble and lose, don't rely on it this time."

Mr. Tian Yuan rubbed his hands, and his face was ashamed: "In fact, the first time he deduced the 'four-color magic circle', the old man lost, plus this 'Fermat magic circle, and lost the bet, the bet is just to crack' the Nine Palace Mystery Array, the words are too light, if Young Master Yin is interested in the way of the magic circle, the old man has an original Taoist technique called the Luo Tian Ji Technique, and he is willing to give it away." ”