Finally, a black iron box fell, and Peach's task was completed.

The crowd gathered around with joy and curiosity.

Xiao Tao also slid down the rope, jumped on Jiang Zhengxin's shoulder, and looked at the thing that had kept it busy for a long time.

I saw a faint cold light on this black iron box, and a crescent moon emblem was printed in the center, which was unique and mysterious, and people couldn't help but want to get a glimpse of the mystery in the box. However, a delicate black lock hangs from the iron box, which locks all the secrets inside.

Because Li Yuan had instructed him to check the contents of the box, and he must not hand over important things such as the troop deployment map, Luan Shu neatly pulled out the saber on his body and slashed directly at the black lock. He was confident that he could cut off the black lock with a single sword, because the You Hong Sword was a royal saber, extremely tough, and could pierce armor and break shields.

Unexpectedly, after a bang, You Hong's knife broke into two, but the black lock was intact.

Luan Shu's ears were a little hot, he threw the broken knife, turned around and pulled out the sword on the ground, and poured all the strength of his body into the black lock again.

After the sparks splashed, Luan Shu felt a tingling in the tiger's mouth, and when he lifted the sword and looked at it again, there was an extra gap on the sword, but the black lock was only slightly white.

Everyone was shocked, they couldn't imagine that this seemingly ordinary black iron was so indestructible.

Jiang Zhengxin saw that Luan Shu was about to swing his sword and cut again, so he hurriedly stopped him, and said earnestly: "Luan Shu, do you know why the first emperor put the sword on the main hall?" ”

Luan Shu shook his head, he didn't understand why Jiang Zhengxin would ask this question that had nothing to do with opening the box.

"Because the emperor treasured it, and wanted to watch it all the time. If you treat the sword that followed the birth and death of the first emperor like this, even if the first emperor cheated the corpse, I am afraid that he will settle accounts with you. ”

After listening to Jiang Zhengxin's explanation, Luan Shu suddenly realized, and hurriedly raised his sword to bow to the coffin of the emperor, and repented deeply.

Jiang Zhengxin smiled, he didn't expect to be so funny as Luan Shu.

At this time, Luan Shu couldn't find a tougher weapon to open the iron lock, and sighed: "Miss, I didn't expect this iron to be so hard." ”

Jiang Zhengxin frowned and said, "In this way, this iron box may not be made of ordinary black iron, could it be... Darksteel? … Oh, my God! What kind of thing could be hidden in such a treasure box? ”

The Northern Dark Iron has always been something that can be encountered but not sought, and the rarest thing for people like Jiang Zhengxin who like institutions is such a rare material. If she can get a piece of dark iron and refine it into a mechanism, it will definitely be a work of inheritance. So she became more and more curious about what kind of treasure needed to be held with the Northern Dark Iron.

In fact, when the first emperor got this dark iron box, he didn't know what was inside. It's just that when Gu Yanjiao was bloodbathing in the Cold String Palace, he was looking for this iron box like crazy. The first emperor was worried that after the destruction of the Hanxian Palace, the power of the Gu Yan Sect would gradually become stronger, and then dominate the martial arts, and this iron box might one day be used to suppress the Gu Yan Sect. Therefore, the first emperor did not hand over the iron box, but brought it into the underground palace, hoping to keep the country stable forever.

Jiang Zhengxin patted his shoulder and released Xiao Tao again.

Xiao Tao rummaged through the treasure bag, took out a small silver needle and inserted it into the keyhole, and then put her ear on the iron lock, carefully listening for the sound of the silver needle contacting the shrapnel in the lock.

At this time, everyone held their breath and did not dare to make a sound.

Although the first emperor had found many skilled craftsmen, but they could not open the iron lock, the monkey ears were much sharper than the human ears, and the hands and feet were more flexible, so Xiao Tao did not take too long to successfully pry the lock open.

The guards all sighed, and they were even more impressed by the little monkey.

After the box was opened, everyone couldn't help but sigh.

There was no treasure in it, but a thin book with yellowed pages written on it, and when it was opened, it was actually a music score.

Even Jiang Zhengxin felt incredible, why did a music score need to be filled with Northern Dark Iron, could it be that there was any secret hidden in this music score?

While everyone was still pondering and speculating, several black shadows swept by, acting like ghosts, and the guards where they passed immediately screamed and fell to the ground.

The rest of the guards drew their swords in a panic, but they were all frightened by the ghosts, and all the knives they swung out were missed, and they had no ability to resist the enemy, and they were killed by the black shadows one after another.

Jiang Zhengxin was shocked, could this really be a resentful soul asking for his life? Although she didn't want to believe that there were demons and monsters in the world, she had believed in everything since she met her fairy grandfather.

At this time, a hand shadow quickly reached out to snatch the iron box in Jiang Zhengxin's arms.

Fortunately, Luan Shu stood beside Jiang Zhengxin, his wrist flickered, and a sword flower pulled it over, and the hand fell from the black shadow's body, spilling blood on the ground.

It turned out that the other party was not a ghost, but a martial arts master dressed in black. It's just because their exercises are too treacherous that people will mistake them for ghosts. These people followed Jiang Zhengxin and them in, and waited until Jiang Zhengxin found the iron box before they showed up to rob it.

Luan Shu shouted: "The other party is not a ghost, don't panic, see the person who is coming, and protect the young lady." ”

Luan Shu's words were like a reassuring pill, and the guards all came to their senses, and they began to carefully identify the direction of the black shadow's attack, and calmly responded to the enemy. These guards are not weak in martial arts, and they can barely resist behind enemy lines calmly.

But who knew that something even more terrible happened next, those black-clothed people who had their hands and feet cut off grew new hands and feet, and the wounds on their bodies were also healing rapidly, and they could not be killed. Because of this, even if those men in black were pierced and their arms were cut off, they could rush forward and kill their opponents without any fear, which was even more terrifying than ghosts.

Even the battle-hardened Luan Shu had never seen such a powerful enemy, and he was worried that if this continued, these men of his would be killed by the men in black sooner or later. But he couldn't think of a way to fight against the immortal body for a while, so he could only turn the sword in his hand into countless sword flowers, weave a dense net, and protect Jiang Zhengxin inside.

Jiang Zhengxin also knew that if he continued like this, he would be tantamount to sitting still, and he had to find a way to trap the man in black, and then escape with everyone. She whispered to Luan Shu: "Luan Shu, if you hold on a little longer, I'll see if I can activate the mechanism in the hall." After the mechanism is activated, you take everyone to the Gen position, and then go to the dry position, so that you can escape safely. ”

"What about you, miss?"

"Don't worry, I'll join you when I'm done activating the mechanism."

Luan Shu couldn't feel at ease in his heart, and said nervously: "Miss, I'll accompany you to protect your safety." ”

"If you follow me, no one will be able to take them out."

"We are not afraid of death, but if Miss is injured, we will die......"

Jiang Zhengxin didn't wait for Luan Shu to finish speaking, he quickly ran to the coffin of Emperor Ming Wu, and then kicked it. But her strength was small, her feet hurt from kicking, and the coffin only shook slightly.

The corners of Jiang Zhengxin's mouth curled slightly, she knew that this was enough. Then she raised the iron box in her hand and shouted, "Don't you want this broken iron box, I'll give it to you." ”

In an instant, the attention of the man in black was attracted by Jiang Zhengxin, broke free from the entanglement of the guards, and quickly flew towards her.

At this moment, the ground moved. The stone bricks of Emperor Mingwu's coffin were opened at the same time, and four bronze flying tigers jumped out at once. These bronze tigers are huge, with bronze wings on their backs, and can run like the wind and fly like eagles. The teeth in the Bronze Tiger's mouth are as thick as a human arm, which can easily bite through boulders, and it has a repeating crossbow mechanism built into its abdomen, and the sharp arrows that fly out of its mouth can shoot enemies at a distance of 100 paces.

This mechanism, called Fenghu, was made to protect the coffin of Emperor Wu of the Ming Dynasty from being invaded by tomb robbers. If Emperor Mingwu's coffin was touched slightly, the four bronze flying tigers would fly out of the ground and kill the tomb robbers.

Jiang Zhengxin knew that the guards were in awe of Emperor Ming Wu and would definitely not touch his coffin. It didn't take much effort to destroy this mechanism just now, but now it seems that it has done them a great favor.

The Bronze Flying Tiger began to attack the man in black who flew towards the coffin of Emperor Wu of the Ming Dynasty. Even if those men in black were not injured or killed, they could not defeat these bloodless tigers, and they were either pressed under the feet of the flying tigers and could not move, or they were nailed into the wall by sharp arrows and could not break free.

Because these flying tigers are specially designed to protect the coffin of Emperor Wu of the Ming Dynasty, they will definitely not infringe on and destroy the coffin. At this moment, Jiang Zhengxin stood quietly beside the coffin, and was not hurt in the slightest. She saw that Luan Shu had already fled safely with the rest of the guards, and she also ran to join Luan Shu and them according to the formation.

When the man in black saw Jiang Zhengxin fleeing with the iron box, he was in a hurry, and hurriedly used his internal strength in his palm, turning into a circulating charm fire that attacked her.

Jiang Zhengxin didn't know martial arts, and he saw a few balls of magic fire flying towards him quickly, but he couldn't dodge at all.

Luan Shu had already run towards Jiang Zhengxin, but he was too far away from Jiang Zhengxin to rush over to rescue him. He knew that if Jiang Zhengxin was hit, he would be killed on the spot, and when he saw the magic fire getting closer and closer to her, he felt infinite despair in his heart.