Zhang Yifeng looked down and at this time his right thumb was pressing on the word "Tong" on the treasure box, but the word "Tong" was now concave. When he opened the box, his eyes suddenly became solemn.

I saw a messy pattern appearing at the bottom of the box. The pattern consists of small pieces of small squares. At a rough look, it is about dozens of pieces.

Seeing these patterns, Zhang Yifeng's eyes slightly condensed. This turned out to be a puzzle mechanism.

He had met the puzzle mechanism once before when he got Tianjizi, so he also had experience. He knew that if he wanted to open the dark grid at the bottom of the treasure box, he had to crack the puzzle mechanism first.

Looking at the puzzle mechanism in front of him, Zhang Yifeng felt a sense of heat in his heart.

Is the magical art of refining the Netherworld Demon Lord mentioned in his letter hidden in the dark square under the puzzle mechanism?

Thinking of this, he stopped hesitating and began to stare at each piece of the puzzle and study it. Gradually, his eyes suddenly lit up. He was surprised to find that these puzzles seemed messy, but if you look closely, the puzzles should describe a scene, and he happened to see that scene, which was the Netherland where he and Guan Mufeng and others had been to before.

A hint of joy appeared in Zhang Yifeng's eyes and he began to fight.

Click!

After moving the first piece of the puzzle, Zhang Yifeng's expression suddenly changed. He was surprised to find that when he moved the first piece of the puzzle, the other small pieces of the puzzle were changing. When he looked at the puzzle again, the small pieces of the puzzle in his mind changed their original positions.

Zhang Yifeng sneered. If he hadn't been to the Netherland and was not familiar with it, he might have to be helpless in the face of such a situation, but he had been to the Netherland. No matter how small pieces of the puzzle change their positions, the scene in his mind was always the scene of the Netherland.

Concentrating on the center, Zhang Yifeng looked at a small piece on the puzzle and moved it gently.

Another crackling sound came out, and the other small pieces of the puzzle changed positions again. Zhang Yifeng was unmoved, and his hands kept pushing the small pieces of the puzzle in front of him, and a crackling sound was endless.

After about ten minutes, the scene of the lake pavilion in the Netherlands was clearly presented in front of him. Zhang Yifeng's mouth showed a confident smile, and he pushed the last small piece of the puzzle forward a grid.

At this time, a magical scene appeared.

Crack, Crack, Crack!

As the sound of a rotation axis sounded, the small piece of the puzzle in front of him suddenly rotated automatically, and then, a raised button slowly rose from the center of the puzzle.

Zhang Yifeng pressed the button, and the puzzle in front of him suddenly separated to both sides, and a secret grid clearly appeared in front of Zhang Yifeng's eyes.

In his sight, a very old ancient book appeared in the dark grid. The ancient book seemed to have been torn off by someone, which was a little incomplete.

"Is this the magical art of refining weapons mentioned in the letter of the Netherworld Demon Lord?"

Looking at the broken ancient books in the dark grid, Zhang Yifeng looked excited and took out the ancient books.

When he opened the ancient books and looked at the content on the first page, a burst of excitement suddenly burst out in his eyes.

This forging magic technique is indeed a lost soul blood casting technique.

The first page clearly describes the principles and power of the soul blood casting technique. Youruo must have understood it based on the content of this page, thus creating the Nine Netherworld Flag.

Zhang Yifeng took a closer look and became more shocking the more he read it. Zhang Yifeng didn't know that the book was the original version, but the content recorded on it was even more detailed than his mentor, Mr. Fu, and almost all the essence.

But this is not what excited Zhang Yifeng the most. What excited him the most was that in addition to the introduction of the soul blood casting technique, this fragment also records the meteor hammer technique, and it is the hammer method after 512 refinements.

I don’t know how long it has passed, but Zhang Yifeng breathed a sigh of relief. He turned his eyes away from the ancient books, and a hint of regret appeared in his eyes.

What the Netherworld Demon Lord said is indeed correct. The ancient books that record the meteor hammer method are indeed incomplete. Although this book records the hammer method after the 512th hammer of the Meteor Hammer method, it is not all. It only records the content of the 513th hammer to 1,024 hammers of the meteor, and as for the other content, all are lost.

Although Zhang Yifeng was prepared in his heart, he still couldn't stop feeling lost.

According to his estimate, if he learned the meteor hammer technique between 513 and 1,024 recorded in ancient books, he would be able to refine a level nine weapon, and even if the materials were good, the first-level magic weapon could be refined.

However, people should be content.

"I've been idle these days, so I'll start studying."

Shaking his head, Zhang Yifeng did not hesitate and focused on learning the meteor hammer technique.

In the next few days, Zhang Yifeng, in addition to feeding Linglu a jade deer a elixir every day, devoted all his time and energy to learning the meteor hammer technique.

The meteor hammer method emphasizes coherence.

After knowing how to hit the hammer method later, Zhang Yifeng actually made a big splash and hit the 888th hammer!

If he hadn't been exhausted, he could have even beaten all 1,024 hammers at once!

Zhang Yifeng understood that the meteor hammer technique became easier to practice as soon as it went. It took less than seven days to make Zhang Yifeng a complete 1,024 hammers. The only thing he lacked was the argument in practice.

This speed was faster than he thought.

No wonder the Netherworld Demon Lord called the meteor hammer technique for forging magic.

In addition, during these six days, the Linglu finally recovered from its injuries and became as agile as before. The only difference is that its eyes when it looked at Zhang Yifeng were filled with deep trust and attachment.
Chapter completed!