This ancient city that sank to the bottom of the Blue Star Sea is really too big! Even the entire Blue Snow City can't compare to it! Yu Tianxiao led his 100-person assessment team to swim and fly to the east in the sky above this ancient and huge city.

After traveling for about two days and nearly 10,000 nautical miles, they really discovered the tallest, largest and most luxurious palace building. That's right, this palace mansion is indeed the best and largest palace mansion that Yu Tianxiao has encountered since they entered the bottom of this Blue Star Sea.

Along the way, although Yu Tianxiao and the others also encountered some palace buildings that seemed to be tall and luxurious, Yu Tianxiao was not satisfied, and they all thought that there would not be too many treasures that were too valuable, so they did not stop searching, but continued to move forward.

That's right, in that great catastrophe many years ago, the strong people here would definitely flee with some important treasures and other things, but no matter how much they could, they would never bring everything clean, and they would not be left behind!

There must have been some things of little importance left behind in their quarters, or in the places where they frequented, and those places were naturally the tall and luxurious palace mansions. If it weren't for the fact that the real strong man had a good temperament, he would never have lived in those simple and low buildings, and would have lived in these tall and luxurious places.

And some of the things that those ancient powerhouses left behind when they escaped were absolutely priceless treasures for Yu Tianxiao and them, the two-star students of the Martial Arts Gym. The treasures they had obtained in this city along the way were some of the things left behind by the ancient powerhouses.

In this way, Yu Tianxiao will be extremely sure that only those tall and luxurious palace buildings can have real treasures.

When Yu Tianxiao and the others flew closer and closer to the palace building, the appearance of the palace building naturally became more and more clear to their eyes.

I saw that it was a huge building with a height of nearly 1,000 kilometers and a base length of nearly 1,000 kilometers, shaped like a long sword piercing the sky. There are various seaweeds and sea creatures attached to it, but you can still see that the entire building is silver-gray.

When Yu Tianxiao led everyone to fly down to the bottom of this incomparably strange, tall and ancient palace building, he couldn't help but be shocked by its majestic and peculiar appearance, and some students were even more amazed.

The universe is not only infinite, but also gives birth to a variety of strange races of incomparably intelligent beings, such as humans, zergs, demons, machines, etc., among which humans are the best among these cosmic races.

In the long history of the evolution of the universe, some human civilizations were incomparably advanced and dazzling at the beginning, but later they declined due to wars, natural disasters and other reasons, so that the later development was not as good as before.

However, some human civilizations have come to an abrupt halt due to natural changes and the reincarnation of the universe in an incomparably prosperous period, and then disappeared in the long river of history.

Although the development of some human civilizations is very slow, it has developed very steadily and smoothly, making it step by step from backward to advanced, and finally become an extremely powerful civilization in the universe.

The ancient city under the sea that Yu Tianxiao and the others entered was in no way inferior to the current Blue Star Empire. It's a pity that it was because of that sudden natural catastrophe that it disappeared in the long history of the development of cosmic civilization and sank into the bottom of this huge blue star sea.

Looking at the strange and tall building in front of him, Yu Tianxiao couldn't help but immediately say to the other people around him: "This building should be the most peculiar and tallest building we have found since we entered the Blue Star Sea, I believe there will be something we want in it." ”

"With such a tall building, how can we complete the search within the assessment period of less than ten days!" At this time, Lan Xing'er couldn't help but look at the tall palace building and said softly.

"You can search as much as you want." Listening to Lan Xing'er's words, Yu Tianxiao said with some emotion.

Speaking of this, Yu Tianxiao couldn't help but pause, and then turned to all the students and continued: "Because this building is too tall, I'm afraid I can't finish exploring what dangers are inside, and you should have accumulated a lot of experience along the way, so this time we went in and searched together at the beginning, do you agree?" ”

"Agreed!" Immediately, everyone replied in unison. Jokes, along the way, almost all of them, the captain, took the lead in risking their lives for them, and this last time, Yu Tianxiao wanted to act with them, how could they disagree? They are afraid of danger, is Yu Tianxiao not afraid of danger? It's just that under the same danger, Yu Tianxiao's survival chance is higher than theirs, but there is still a danger of dying.

Being able to meet a captain like Yu Tianxiao who is so good, so responsible, and so leading the way is indeed a blessing for them to evaluate students! If you meet a captain who is selfish, greedy for life and afraid of death, then he will let his subordinates and team members go to investigate and test the danger every time he goes to a place, so I don't know how many students will die because of this!

These students are all elites in the Blue Star Martial Arts Gym, who can not understand such a simple truth? Therefore, when Yu Tianxiao said that he wanted to enter this huge palace building with them from the beginning, they were naturally 10,000 willing, and everyone would face the danger together.

"Since everyone has agreed to enter this palace building together, let's go in at once." Speaking of this, Yu Tianxiao couldn't help but immediately turn his head to Lan Xing'er beside him and said, "Xing'er, let's open the door first." ”

"Good!" Lan Xing'er nodded.

Because at this moment, the door of this palace building was closed, so Yu Tianxiao and the others didn't know if it was locked, or even if there was a powerful Blue Star Beast entrenched inside.

According to past experience, in a tall and luxurious building like this, it is usually guarded by a very powerful Blue Star Beast. Because the wisdom of the Blue Star Beasts is also very high, especially the wisdom of those Beast King Beast King Level Blue Star Beasts is comparable to that of humans, and some are even higher than the wisdom of ordinary humans, so they choose a place to hide and live, and they will naturally choose this kind of tall, luxurious and comfortable place.

This is also the reason why Yu Tianxiao and the others can always run into the Blue Star Beast when they first enter these places. In this way, over time, they naturally summed up a little experience.

When Yu Tianxiao and Lan Xing'er decided to open the door of this ancient palace mansion together, there was a bang! Quickly blended into one. Then with a wave of the huge lightsaber in his hand, which was composed of the Star Cutting Sword and the Demon Blue Sword, boom! In an instant, a dazzling huge sword light slashed straight towards the huge palace gate.

Thundered! Click! When the huge sword light slammed into the palace gate, the palace gate immediately opened.

However, at the moment when the palace gates opened! Oh! Oh! Oh! Whoosh! Whoosh! Suddenly, colorful figures rushed out of the palace like colorful lights.