Long Yi deleted the mutual perception of each other in the contract, and added the part that was absolutely confidential about Long Yi. As a modern young man, Long Yi's article description is unobstructed. Tyer just smiled and watched Long Yi toss. Tyer must have something to do, but it has nothing to do with Long Yi. He really needs Long Yi's contract to help him complete some things, but this itself does not interfere with Long Yi. In other words, as long as the contract exists, it doesn't matter what the terms are.

As for what Long Yi was worried about, it would not happen at all, because he did not intend to do anything harmful to Long Yi.

In the secret room, the contract was signed, and Long Yi was relieved.

"Well, we are going to go to Hefeng Plain to hunt the big monsters. Do you have any suggestions?"

"What!"

Tyer was startled. He originally thought that Long Yi was going to go to the rear of the Black Dragon Empire to play tricks, so he specifically sought advice from him. Unexpectedly, he actually wanted to go to Hefeng Plain!

"The suggestion is that it's better not to go," said Thiel.

"Switch to a more constructive one." Long Yi asked.

"You really want to go?"

"Looking at my honest face, do you seem to be lying?"

"If I hadn't just signed a contract, I really wanted to tear off your honest face. I wanted to go there yourself, don't take my children with you." Tyre said fiercely.

"Hey, right? After all, you are the leader of the Black Dragon Empire back then. You fought with our old dean to death. Why did you suddenly become so cowardly?" Long Yi used the method of provoking.

"Don't try it, this trick is useless to me..." Tyer saw that Long Yi was not joking. He could only sigh and said, "Boy, you must be crazy about Crystal Core. But if you really go, I have something for you to see."

As he said that, Thiel took out a metal tube from his own private space.

Open from one end, inside are complicated maps. Tyre selects one from the inside and gives it to Long Yi.

This is the layout of the Black Dragon Empire on the Hefeng Plain. The route above is their fixed patrol route. Wherever you slide with a red pen, you are all places where plane scars may appear. It would be fine if you are close to the White Dragon Empire, but if you are close to the Black Dragon Empire, you need to bypass these routes or solve them in advance.

Tyer didn't say anything, Long Yi just looked at it, and just as he was about to put it away, Tyer raised his hand: "I can't give this thing to you. I've made a vow."

As a black dragon, Tyer was able to run to the White Dragon Empire. Naturally, he had to use the most stringent oath to ensure that he would not use the knowledge he knew to harm the interests of the Black Dragon Empire.

However, because the oath is very colloquial, there are still some loopholes and tricks.

For example, now, Long Yi wants to go to the Hefeng Plain. Whether it is the Hefeng Plain or the plane scars, these places are neutral to the Black Dragon and the White Dragon. Tyer showed the map to Long Yi. Although the essential purpose was to let Long Yi understand the arrangement of the Black Dragon Empire, it can also be explained with the excuse of "let Long Yi remember the location of the plane scars". Moreover, Tyer also emphasized that this thing cannot be given to you.

So, under the ambiguity, the oath was not violated, but Thiel's purpose had been achieved.

Long Yi and Erin both had good memory. They recorded the map together, confirmed each other and made sure that it was correct, and returned the map to Thiel.

"Then, uncle, what are your experiences in controlling monsters?" Since I asked, I naturally had to ask a comprehensive question.

"Control the monster?" Tyre thought for a while.

"I have never done this kind of thing before, but I have a way to try it out," said Thiel.

"What's the solution?" Long Yi was just asking casually, but he didn't expect that this old black dragon actually had a solution!

"The Black Dragon Empire has been conducting research on necromancers and manipulation techniques that combine necromancers and puppet techniques. In this way, as long as there is a person who is proficient in spiritual spells - yes, I mean Xiao Zi. In theory, it should be possible to force a monster to stop the self-destruction process by force. But the time when this spell takes effect depends on the strength gap between Xiao Zi and the monster. The larger the gap, the longer the casting time. The longest or even ten minutes may be achieved before it can take effect initially."

Tyer said, teaching this spell to Xiao Zi.

"In addition, when casting this spell, the Black Dragon Empire was controlled by some kind of artifact. I don't know how to make that thing. I think maybe you need to get it from the Black Dragon Empire first." Tyer added.

Hearing this, Long Yi and Xiao Zi looked at each other and smiled.

"Uncle, see if this thing works."

As he said that, Long Yi took out a dragon heart-shaped object from his private space. There was a complex mechanism around the thing, but there was a dragon heart in the center. This thing was one of the two puppet hearts that Long Yi got from the island deep in the magma. The other one was left at the Royal Academy to study the necrotic arts of the Black Dragon Empire, and this one was naturally kept by himself.

"Puppet Heart? Where did you get this from? I remember that the Black Dragon Empire no longer made this kind of thing a long time ago." Tyre took the puppet Heart in surprise and said.

"This thing is a long story, it must be a good luck anyway." Long Yi said with a smile.

"Well, with the help of this thing, the success rate of puppet technology will be greatly improved." Tyer did not study it deeply. There were more secrets on Long Yi than him, and Tyer was not interested in knowing Long Yi's secrets.

Tyer still showed great concern about Yi's operation. Even if he went directly to fight the Black Dragon Empire on the front battlefield, he would not have such concern, but that was a monster. Even the smallest monsters carried extremely terrifying crystal poison. Although people have found many ways to limit crystal poison over the years, people have become more and more aware that those crystal poisons that can be restricted are actually not crystal poisons. The real crystal poison actually comes from the big monster.

In the past battles with the great monsters, no one has recovered so far once they were infected by the crystal poison of the great monster. Even in the last hunt of monsters across the country, several dragon knights still died at the hands of the great monsters. They did not fail to beat them, but they were just accidentally infected by the crystal poison. Once they were infected by the crystal poison of the great monsters, they would not even have too much pain. In order to prevent them from becoming monsters, they would plead with their companions to kill themselves.

This is far more glorious than becoming a monster.

These stories will never be told to ordinary people. All the relatives of these dragon knights know about them was that they died in gloriously.

"This bastard...is really crazy..."

The black dragon Tel watched Long Yi and the others leave, shook his head helplessly. Then he returned to the secret room alone. The contract in his soul shone brightly. Tel had planned many coincidences to try to make Long Yi accept the contract. Sometimes he felt that he was also funny. The powerful dragon protecting the country back then had to find a way to make others accept his contract. But unexpectedly, he got Long Yi's contract so simple.

Since the contract has been obtained, all the plans need to be carried out in the next step.

Tyer changed out of the priest robe he had worn for many years and put on a black dress. This dress was the first time that Tyer became a human, and he specially customized it for his Dragon Knight to visit the tombs. Since he became a human, he has only worn it that time.

"The clothes are a little big."

Tyer looked at himself who was thin in the mirror. He was far less energetic than before, but he had a little calmer. At this time, Tyer's heart began to be beating violently. Even he himself did not expect that after planning for so long, he would still be a little nervous once this time came.

"Go and say goodbye to your old friend."

Thiel said to himself.

Thiel opened the temple door and was about to leave, but saw the dean standing there, with a light flashing in his eyes.

"Are you leaving?" asked the dean.

"Yes, my old friend, I'm leaving." Thiel said with a smile.

"You got the contract from Long Yi?"

"Yes, everything is as I expected."

"So, are you going to return to Dragon Island?"

"Yes."

Two old men and two old dragons stood opposite each other. For a moment, no one knew what to say.

"Why……"

In the end, the dean sighed heavily.

"Don't be so nervous, old friend. We have been fighting for a lifetime. I'm about to die now. Are you unhappy?" Tyre said, patting the dean's shoulder.

"If you really die, I might be happy for a few more days, but I'm afraid you won't die thoroughly." The dean shook his head and smiled bitterly.

Thiel was stunned for a moment, his smile slowly calmed down: "You guessed it?"

"Contract, ghost dragon, and your belief in revenge. As a dragon, what other choices can you have?" said the dean softly, "or do you think that you are the only one who wants to avenge your knight?"

Thiel was completely stunned, and then his smile gradually spread out.

"Old friend, if you didn't have different colors, I think we should be brothers." Thiel said.

The dean sighed heavily and said, "Hey! If this is the case, Dragon Island will never let any of you and me survive."

Thiel nodded and said, "Yes, the balance in war is the only thing the immortals think about, and for this, they will spare no expense!"

Speaking of this, Tyre's eyes were filled with anger!

"But this time, they will pay the price! As a dragon clan, I may not be as cunning as humans, but the ones who have made all these plans for me are the few smart people in the entire human world!"

The dean was stunned and said, "Wait, did he formulate your plan for you?"

Tyer nodded slightly and said, "Yes, otherwise, as a black dragon, why would you rather make the most harsh vow than come to the White Dragon Empire?"

Hearing this, the dean couldn't help but smile bitterly: "First I will help you formulate a revenge plan, and then push Cry to the throne. Who knows what else is next? This game of chess is too big, and I can't understand it anymore!"

"Okay, my old friend, I'm leaving now. If I'm lucky, I'll arrive at Dragon Island tomorrow evening. Then, all this will fail and there will be an answer soon."

Thiel said, reaching out his hand with a calm smile on his face.

The dean also reached out and held Tyer with him, and then the two old men hugged each other heavily. Tyer heard the dean's words: "If you fail, I have a second plan until the day the White Dragon Empire destroys the Black Dragon Empire."

Tyre was stunned, then smiled and said in a low voice: "Don't worry, it's not your turn."

The two old men separated, and they both saw the determination in their eyes.
Chapter completed!