Master, you go first!

Gu Jiugang had just walked down a few stairs, and Tian Yuxin, who had not yet walked down the stairs behind him, said,

"Wait a minute, there seems to be something over there."

Hearing this, Gu Jiu quickly retreated with Shen Nian and Chang Linger who had already gone down the stairs.

Gu Jiu carried the spirit stone lantern and walked towards the direction pointed by Tian Yuxin. Where the light came from, he saw a box. The box was made of gray and black metal. It was really easy to miss it in this environment without paying attention.

"It turns out you're opening a treasure chest. You don't have to fight monsters, so that's easy."

However, here comes the problem. The box is so strong that it cannot be pried open, not even with spiritual power. It seems that there is also a formation to prevent spiritual power. Looking at the keyhole, Gu Jiu knew that he still had to find the key.

"It seems you need to find the key to open it."

"What should we do? How about we split up and find it faster?" Shen Nian suggested splitting up to find the key.

"Okay, but for safety's sake, I'll bring this with you." Gu Jiuyi gave a talisman.

"What kind of talisman is this?"

"Short-distance teleportation talisman, yours is a sub-talisman. After use, it will be teleported to my main talisman. The distance is not far, but it is enough here."

Several people nodded and took the talisman, and began to look for the keys to the box separately.

Gu Jiu wasn't looking for it very attentively. He was still thinking about the spiritual fire, his main goal.

According to previous observations, the spiritual fire is likely to be deep underground, and it is not necessary for him to open the box now.

Thinking of this, he used the clairvoyance talisman again. Although he couldn't see people through the wall, he could see the light spots of spiritual power.

He glanced around, and most of the people who came in just now were still on the ground. Only the three people from Yang Botao's direction entered the underground floor.

After thinking for a moment, he felt that he had to hurry to the bottom, otherwise if the three doors of the palace all lead to the same underground, others might get there first.

"Yes, if you can't find the key for too long, just go to the bottom floor, get the spirit fire, and then come back and find the others slowly." Gu Jiu made a decision to himself.

After a while, Chang Ling'er suddenly teleported to Gu Jiu. At this moment, Gu Jiu had given up searching and stopped at the entrance of the stairs, waiting for them to come back and go directly to the ground.

"Fellow Daoist Gu, I found it." Chang Ling'er said happily.

"Then can you contact your senior sister to come back?"

"Okay, I'll pass a message to her."

"it is good."

So both of them sent news to Shen Nian and Tian Yuxin who had not yet returned to the team. It all came back after a while.

"Let's go and open the box. But I just thought about it. Let's go directly to the bottom floor. I want to see if it's the spirit fire I want. If I can get it, I can come back to find other things."

"Okay, let's go after this box is opened." Chang Ling'er said.

The two junior sisters were just following the dungeon, and they could earn as much as they could, so there was no reason to oppose Gu Jiu's decision.

Next to the box where several people came together, Chang Ling'er put the key into the keyhole, turned it clockwise, and the box opened.

A burst of light flashed, and a magic weapon lay quietly inside the box, which was like a piece of defensive inner armor made of silk.

"Wow, what level of armor is this?" Chang Ling'er asked happily.

"It should be of heaven level."

Gu Jiu reached out and picked it up and felt it. Now he is quite familiar with these things. After all, he has been closely associated with the Qiu family of Baidu Peak in the past two years, and from time to time he has to build some magic weapon arrays.

"So beautiful." Chang Ling'er's eyes flashed with gold, and she wanted it very much, but they were bastards and were too embarrassed to ask for it.

"Take it."

Gu Jiu handed it to her casually. He and Shen Nian were wearing heaven-level armor, but they didn't like it. After a while, they found the materials and wanted to ask their ancestors to build holy-level armor.

"Is it really okay?" Chang Ling'er asked in surprise, her expression looking like she wanted but was embarrassed at the same time.

"Well, let's do this. We will take whatever we can find here, such as materials, and give you the finished instruments."

Gu Jiu and Chang Ling'er said this with some considerations. Judging from the strength of the secret realm here, the magic weapon that can be produced should not exceed the heaven level. Heaven level is not rare for them, the sect can make it themselves.

The demand for materials is greater. Even for refining holy-level magic weapons, heaven-level auxiliary materials are indispensable. In this way, everyone will be happy, and the team with bound interests is less likely to change.

Chang Ling'er happily accepted the heavenly armor. The few people followed the plan mentioned by Sheng Jiu and went directly to the lower levels of the underground to explore.

The journey went smoothly, except that when we reached the ninth floor, the stairs were blocked by the door and there was no way to continue going down.

Gu Jiu checked in front of the door for a while. There are grooves on the door, but it is obviously not in the shape of a spiritual stone. It should be different from the way of opening the door in the previous training base.

Except for a groove, there is no other special feature.

"Maybe I need something to open the door. Let's check on this floor. It's still the same as before."

Gu Jiu also gave several people talismans, and then began to explore the ninth floor.

The four people went in four directions. In this gloomy nine floors underground, the surrounding environment was really depressing. With the main colors of gray and black and dim lights, it seemed that danger might appear at any time.

Time passed little by little, and about as long as it took to drink tea, a relatively wide hall appeared in front of Gu Jiu, with six large black stone pillars on both sides.

Gu Jiu walked carefully and slowly into the hall. There was a vague "hissing" sound in his ears. When he looked up, he almost fell down in fear.

I saw a big snake coiled on one of the pillars, hissing and spitting out snake messages. A pair of vertical pupils glowed with a faint red light.

Gu Jiu immediately exited the hall, but luckily the big snake didn't chase him out.

He lit up his talisman, and the other three people teleported over instantly. If the main talisman of this talisman is used, it will summon other people who have the sub-talisman.

The three of them were still confused when they were pulled over, and Gu Jiugan immediately told them the situation.

"Master, can you beat that big guy?"

"You can try it."

"What about you?" Gu Jiu turned to look at the two girls from the Feixian Sect.

"Okay, let's go together." Tian Yuxin nodded.

"Okay, be careful later and I'll set up a formation for you." After Gu Jiu finished speaking, he began to look for the formation plate.

"Give us a formation?" Shen Nian looked at him with disdain, "Aren't you going to do it yourself?"

"Go up, you have to go up. Don't dare to disobey the master's orders." Gu Jiu laughed.

After a moment, Gu Jiu set up a formation at the door. It was a formation that could enhance the attributes of spiritual roots. Gu Jiu chose this after thinking that the opponent might not be strengthened if he were a monster, and that there should be no spiritual roots before the transformation.