The exchange of unknown knowledge is a complex and huge project, especially on the premise that there is little trust between the two sides.

In order to avoid being deceived, whether it is Cheng or iolem, they are very careful at the beginning, try not to contact those expensive core knowledge and technologies, but choose gadgets that are never too important but can distinguish the value of the system.

After a full ten hours, they had exchanged hundreds of spells, as well as many magic item making, scroll transcription and alchemy skills.

Finally, Zhang Chengcheng pointed directly to the last few pages of the list and said, "I want all the creative technology of the core of Mishra and the floating city!"

"Oh? You want to make your own floating city?" the tone of iolem revealed a trace of surprise.

"No! Not yet!" Zhang Cheng shook his head gently. "I'm just a little curious about what kind of magic can make a mountain float in the air for a long time, and what kind of technology can ensure the continuous absorption of magic energy from the surrounding environment."

"Hehe, you know what? You're not the first one who wants to get the data of the floating city, and you won't be the last one. But I want to say that the floating city is far less powerful than you think, especially the core of Mishra. It needs a relatively stable energy input state, that is, the magic net. It can't directly draw power from the manic original energy, otherwise the disaster will happen that year When difficulties come, they will not fall directly from the sky. Of course, the most important thing is that this knowledge is very expensive, "iolem explained patiently.

"I've decided! Please make an offer!" Zhang Cheng was obviously not interested in listening to this and put on a straight face.

The reason is very simple. As the most important cornerstone of the ancient netherric civilization, the core of Mishra means that the magic effect can be constant without consuming too much energy, provided that you stay within the influence radius of the core of Mishra.

No caster would not desire such a treasure.

What's more, several powerful spells for creating floating city, one can instantly flatten a mountain peak, and the other two can reverse gravity and make thousands of tons of rocks float in the sky. Even as a large-scale destructive spell, the power is still considerable.

"OK! If you insist..." iolem sighed indifferently, quickly scanned the list in front of him, and then clicked it with his tentacle. "I want the method of making and controlling evil energy, and the demon rune system."

Zhang Cheng narrowed his eyes, hesitated for a moment, quickly nodded: "no problem! Let's exchange!"

The voice just fell!

Both of them took the corresponding memory fragments from their own minds and handed them to each other.

moment

Massive knowledge is directly transmitted to the cerebral cortex through spiritual connection, and then stored in the hippocampus from the cerebral cortex until it finally enters the long-term memory area.

For a moment, Zhang Cheng couldn't help feeling dizzy with a large amount of complex and astringent knowledge.

Fortunately, he is now an absolute divine creature. Otherwise, this behavior of forcibly pouring memory into the brain alone will lead to cerebral hemorrhage and even brain death.

I don't know how long it took, maybe a few minutes, maybe an hour or two

In short, after he fully understood these astringent and difficult knowledge, iolem had begun to try to distort the arcane energy and create a large green evil energy flame.

Although it can not be completely controlled, it undoubtedly brings this powerful and evil force into its own control.

"How do you feel?" the great arcane master asked carelessly while fiddling with the power he had just obtained.

"Fortunately, there should be no big problem. Let's go on." Zhang Cheng shook his head.

"If I guess correctly, the next thing you want should be to create the immortal brain and the magic integrated with it, right?" iolem joked with a smile.

"Yes! I found that most creatures in the world have an upper limit on intelligence, and this upper limit is determined by the brain capacity. Only the mind grabber brain that can infinitely increase the volume can get rid of the limit." Zhang Cheng did not intend to hide and gave a straight answer in the affirmative.

In fact, the two biggest purposes of his trip are to obtain a complete set of construction technology of the floating city and the magic ceremony integrated with the mind snatcher's brain.

"I don't understand! You are already a divine creature. In principle, as long as you continue on this road, you will inevitably obtain the power of divine power. At that time, the attribute of mortal is nothing at all. Why bother to do so?"

"I never intend to be one of the gods! Plundering divinity is just to find out what God is and how to really kill them. Maybe you won't believe that even the dragon body I have now is only a temporary shell. I don't mind doing some crazy and dangerous experiments with it."

"I see. Your own body didn't enter the world, did you?" iolem seemed to realize something and said meaningfully.

Zhang Cheng opened his mouth and nodded with a smile: "that's right. So I don't care about death at all. I even have no scruples."

"Very interesting! Can you venture to ask, is it because of some magic technology or something unexpected that you can come to this world?"

"It's because of a piece of parchment! Generally speaking, I'm more like a puppet under control or a mercenary on duty. It may be a little complicated to explain, but you should understand after reading this..."

After that, Zhang Cheng took out the magic parchment scroll in no hurry.

Perhaps it was the hope that the greatest caster in human history could crack the secret behind the parchment and give himself some guidance, so he made such a bold move.

But when the parchment scroll appeared, I don't know why it released a dazzling golden light!

Next second!

Boom!

A terrible energy fell from the sky!

Hit iolem on the head!

Although he foresees the danger in advance, he holds up a huge protective lock.

But these shields woven by dozens of protective magic didn't hold for ten seconds, so the field was broken, and the left half of the brain was fried with the remaining energy.

Fortunately, the energy came and went quickly. After smashing the brain pool on the left, it disappeared without a trace, as if it had never appeared.

"Damn it! Put it away! Come on!" yollam growled madly without demeanor.