Chapter 1604: Puzzle mechanism

The Nine Nether Underworld Banner is a powerful treasure. Three thousand Nether Guards melt a drop of their own essence and blood into it. As long as the essence and blood energy in the Nine Nether Underworld Banner is not exhausted, the three thousand Nether Guardians will continue At the peak of combat power, tireless.
However, although the Nine Nether Tong Ming Banner is against the sky, it has a side effect. Once the energy in the Jiu Nether Tong Ming Banner is exhausted, the owner of the essence and blood will enter a deep sleep state until the essence and blood in the Nine Nether Tong Ming Banner. Energy recovery.
Seeing this, Zhang Yifeng's eyes burst into light.
The Nether Demon Lord has three thousand Nether Guards, he has a hundred war bandits, and with the power of the Nine Nether Tong Ming Banner, if it is allocated to a hundred war bandits, then...
"However, compared with Nether Guardian, the cultivation base of One Hundred Bandits is still a bit low."
Zhang Yifeng sighed, and decided in his heart that he must improve the strength of the hundred bandits as soon as possible.
Shaking his head, Zhang Yifeng continued to look at it.
Youruo succeeded in refining the Nine Nether Underworld Flag, and the Nether Demon Lord was like a tiger with wings, and led three thousand Nether Guards. They were invincible, but one day they met a powerful enemy, powerful enough to be the peak of Netherworld. Demon Lord is not an opponent either.
As soon as the man came, he asked You Ruo for the forging method of the divine weapon refining technique, but the Nether Demon Lord refused without even thinking about it.
In his opinion, only his wife Youruo is qualified to possess such magical and powerful refining techniques. As for others, they are not even qualified to take a look.
The man couldn't ask for it, so he launched a fierce battle with the Nether Demon Lord. The result of the battle was somewhat unexpected. The invincible Nether Demon Lord was not that person's opponent!
After a fierce battle, the Nether Demon Lord was defeated and seriously injured. He relied on three thousand Nether Guards to die before and after, and then took You Ruo to escape to the Nether Land.
It didn't take long for the enemy to chase him, and in the hope of fleeing, the Nether Demon Lord and the remaining Nether Guards launched a decisive battle with the enemy.
In the end, his wife, You Ruo, sacrificed the Nine Nether Underworld Banner, and at the expense of her and a group of Nether Guards' lives, severely wounded the enemy back.
The former subordinates and his wife died one after another, and the Nether Demon Lord had reached the end of the crossbow under the shock of his heart. He left this letter and the Jiuyou Treading Profound Treasure Box and fell to the Nether Land.
At the end of the letter, there is a piece of advice from Nether Demon Lord.
He said in the letter that the magical refining technique is the supreme refining technique. Once exposed, it will inevitably lead to a storm. He warned future generations that once they have the magical refining technique, if they do not have enough strength, they will give up learning it. Content, otherwise it will inevitably lead to death.
Seeing this, Zhang Yifeng could no longer remain calm, a touch of excitement appeared on his face.
Does the refining magic technique mentioned in the Nether Demon Lord's letter have anything to do with the meteor hammer method?
Qiu Xue gave him several clues, but only said that the tempering method behind the Meteor Hammer was in the northwest. He thought it would take a long time to find it, but he didn't expect to get something that might be related to Meteor Hammer in the Sunset Mountains. clue.
Could it be that the magic forging technique is the soul blood casting technique?
Thinking of this possibility, Zhang Yifeng looked down at the treasure box with a look of eagerness and expectation in his eyes.
Taking a deep breath, he tried to calm himself down. He looked at the contents of the box. What he saw was an old scroll, but when he saw the contents of the cover of the scroll, his expression was stagnant and his eyes revealed There was a deep disappointment.
What he saw before his eyes was an old booklet. The cover of the booklet read "You Ruo" in two beautiful small characters. Zhang Yifeng opened it and found that the content on the booklet was Youruo's experience and knowledge about some refining tools. Conception.
He sighed, dispersed the loss in his heart, and continued to watch with patience.
Gradually, the loss of color on his face disappeared completely, and he changed to a look of surprise. His gaze at the book in his hand was like a treasure.
Although Nether Demon Lord mentioned in his letter that his wife is a master craftsman, Zhang Yifeng never expected that You Ruo's talent in craftsmanship was so outstanding. He guessed that You Ruo might be a master craftsman. .
In the refining notes, some of the insights and ideas that You Ruo put forward, even Zhang Yifeng didn’t even notice it. At this moment, there was no loss in his heart. The book in front of him, although not the follow-up refining tool of Meteor Hammer. Fa, but its preciousness is enough to make many refiners jealous.
"I have learned the Meteor Hammer Technique and the quiet refining technique. In the future, I can give it to my subordinates, and maybe I can train a refining master."
Zhang Yifeng put Youruo's refining notes aside, then looked at another volume of booklet with "Nine Nether Profound Art" and opened it.
Just taking a look, Zhang Yifeng's eyes widened. This volume of book called Jiuyou Profound Art turned out to be the cultivation technique of the Nether Demon Lord. Moreover, the Nine Nether Profound Art is not only a gong-method, it is even all-encompassing and contains a lot of knowledge.
Zhang Yifeng couldn't help but be surprised, but he didn't plan to practice Jiuyou Profound Art.
Although Nether Demon Lord is powerful, his cultivation method is not the same as his own. Jiuyou Profound Art is more like a magic art, although powerful, it is not suitable for his cultivation.
Zhang Yifeng looked at it for a while before putting away the Nine Nether Profound Art, and then looked at the last thing in the treasure box, which was a jade slip.
"Could it be that the magic weapon refining technique Nether Demon Lord said is in this jade slip?"
With anticipation, Zhang Yifeng picked up the jade slip and sank his mind into the jade slip. The information in the jade slip was clearly presented in his mind.
He couldn't help but his expression changed. The jade slip originally recorded the training method of the Nether Guardian.
Zhang Yifeng couldn't help being disappointed. Although Nether Guard's training method was precious, what he wanted more at the moment was the magic weapon refining technique that Nether Demon Lord said.
"Could it be that these are the only things in this treasure box?"
Zhang Yifeng's eyes revealed a sense of unwillingness. He always felt that since the Nether Demon Lord mentioned in the letter, then the artifact refining technique he said must exist, but why is it not in the treasure box?
Suddenly, Zhang Yifeng looked at the box in his hand, his eyes condensed.
I didn’t think about it just now. Looking back, he couldn’t help but feel a bit of doubt in his heart. Jiuyou Taxuan is a treasure box used by the Nether Demon Lord to keep his inheritance. It stands to reason that he will set up complicated institutional shackles to prevent others. Open it easily.
But just now, he opened the treasure box easily, without encountering the slightest obstacle, not even the most common mechanism lock.
He took a deep breath and took the Jiuyou Tingxuan Box in his hand and studied it carefully, but after watching it for a long time, he still didn't see what was wrong.
Zhang Yifeng couldn't help being disappointed. He closed the treasure box and was about to put the box into the storage ring. At this moment, a small voice suddenly rang.
Click!