Xu Xin did not continue to hold on to the ancient bronze sword, but let go and dropped it to the ground.

He didn't dare to continue holding on to the ancient sword. After all, the introduction to the ancient sword clearly stated that the blade was fragile and easily damaged.

It would be bad if he broke it.

"It's really inserted!" Zeng Tao exclaimed, "Is it really a key? Where did you get this key?"

"You didn't get it here, right?" Shi Wanyun's eyes shifted from the door to Xu Xin, "Did you bring it in from outside?"

Xu Xin had been in her sight since he came in, but she didn't see where he got the ancient bronze sword.

"Well, it was brought back by Qin Fu. The blood-striped troll came here for this thing." Xu Xin explained while staring at the giant door.

"Ah?" Lou Fei'er and Zeng Tao both exclaimed in surprise, and Jin Yue also opened her eyes wide.

Xu Xin frowned slightly.

After inserting the ancient bronze sword into the giant door, there was no reaction.

At the keyhole, only the handle of the knife, which was still there, looked rusty under the bright white luster.

Could it be that it still needs to be twisted like a key?

He immediately jumped on the spot, reached a position that was level with the keyhole, grabbed the handle of the ancient bronze sword, and twisted it clockwise.

The ancient knife in his hand turned easily, and with it, the recessed metal keyhole of the entire prototype.

"It's twisted!" Zeng Tao cheered from below!

"Crack."

Xu Xin landed, and then, a strange feeling arose in her heart.

There is something weird about this door!

"Back off, everyone back off!" Xu Xin immediately jumped back and said at the same time.

The girls didn't dare to be careless when they heard this, and took a few steps back with him.

And this door, with their movements, the bright white light became brighter and brighter!

From the original soft light, it gradually became dazzling!

It even made a few people unable to open their eyes!

"This light will definitely lead to a treasure!" Zeng Tao blocked the light with his hand, squinted his eyes and looked at the door between his fingers, and said excitedly at the same time.

The other people also took the same action. Although the light was dazzling, no one wanted to miss the moment when the door opened.

"boom!"

After a roar, the entire door opened a gap.

Purple-black light leaked from the gap!

This color is very familiar to them!

"Portal! The color of the portal! I knew it was a portal!" Zeng Tao's voice became even more excited.

"Isn't this the portal back to the ground?" Lou Fei'er was also a little surprised.

Jin Yue didn't say anything, but took two steps closer to Xu Xin so that she could take action if there was any danger.

Shi Wanyun was filled with doubts.

What exactly is this place?

She knew that the way back was obviously not here, but the passage Xu Xin and the others came from.

So what's going on here?

Why didn't those guys tell her about the situation on the third floor?

Could it be that they don’t know either?

Xu Xin's heart was extremely throbbing.

He even became short of breath!

He felt that there seemed to be something waving to him in the door, attracting him, calling him, asking him to enter quickly!

"boom……"

The sound continued.

The gap between the two doors on the left and right is slowly opening, the purple-black light becomes more and more conspicuous, and the white light emitted by the door is also slowly weakening.

The door does not open outward, but inward.

The door that opened inward seemed to be immersed in water, immersed in purple-black light, and then the bronze dagger on the keyhole disappeared.

At the same time, the purple-black light prevailed, instantly filling the original position of the door, and even spreading outward by dozens of centimeters!

Then, the rumbling sound stopped.

In front of a few people, a strange-looking giant door appeared!

The door frame is already made of the original crystal material, exuding soft white light, but inside the door is a purple-black starlight!

This time, there is no rotating purple-black vortex, nor the very rich-looking purple-black energy. There is only a purple-black... starry sky that is as deep as the universe and wants to suck people in.

There are also a few stars emitting bright white light, which really makes people feel as if they are facing the universe.

"This... is so beautiful!" Lou Fei'er was immediately attracted, "Is this a portal? Why is it different from the previous ones?"

"Wow... I'm a little afraid to go in..." Zeng Tao leaned closer to Xu Xin, "I always feel that if I step in, I will lose myself in the boundless universe..."

Xu Xin subconsciously took a step forward.

He couldn't help but get into it.

At this time, two hands grabbed him and stopped his movements.

It's Jin Yue and Shi Wanyun behind him.

"What do you want to do?" Shi Wanyu frowned and asked, "Do you want to just walk in?"

"Too dangerous." Jin Yue only said three words, but she also expressed her attitude.

"We must go in!" Zeng Tao had a different view than the two of them, "Are we supposed to do nothing after opening the door and go home?"

"This door might allow us to return to the ground." Lou Fei'er also agreed to go inside.

"There are other ways to return to the ground!" Shi Wanyun no longer concealed it, "This is definitely not the way to return to the ground!"

"...How do you know...Hey!" Lou Fei'er looked at Shi Wanyun suspiciously, and just as she was about to ask, Xu Xin suddenly took a big step and entered the door without hesitation.

Not even the two people behind him caught him.

Then, the purple-black color, like the abyss of the universe, suddenly surged in all directions!

"ah!"

"Varied……"

Before the girls even had time to scream, they were directly swallowed up by the purple-black color.

The purple-black space instantly filled the entire third floor!

And several people also disappeared at this moment.

…

At this time, Xu Xin seemed to be floating in the silent universe.

There was no sound around, it was dead silence.

He could hear his heartbeat, breathing, and even the squirming sounds of his internal organs.

However, he did not panic because of this, but slowly looked around, and his breathing gradually calmed down.

He said softly: "I'm coming."

"……You finally came……"

At this time, a slightly vague and clear voice sounded throughout the space.

The sound seemed to come from all directions, and there was no direction at all.

But this voice was indeed so familiar to him.

This is the sound he hears every day.

"...my future self."

This is his own voice.
Chapter completed!