I saw that this huge ancient city couldn't see the location of the city wall at all, and maybe there was no city wall at all, because if such a huge city had to add another city wall, how much manpower and financial resources would have to be consumed! There may be a city wall, but after countless years of vicissitudes of time, natural and man-made disasters, and sea water immersion, it has long collapsed and disappeared!

In short, at this moment, we can only see buildings of different styles and incomplete buildings, large or small, tall or short. Some of the low buildings are only a few stories high, hundreds of meters; However, some high-rise buildings have more than 100 floors, hundreds of floors, or even more, and the height reaches nearly 100 kilometers high, or even hundreds of kilometers.

Under the long-term immersion of the seawater, there are some marine creatures attached to it, so from a distance, it is impossible to see the color of the buildings themselves, or even the original appearance.

Suspended in mid-air, looking at the endless ancient city under his feet, Yu Tianxiao couldn't help but let out bursts of emotion in his heart. And Lan Xing'er, Bing Lanruo, Qu Tianxing, Lin Dufeng, and all the other students were even more shocked in their hearts.

I really didn't expect that there would be such a huge city at the bottom of this Blue Star Sea! Incredible! It's incredible!

Judging from the scale of the city, it must have been the imperial capital of an empire in ancient times, and if it were not for the imperial capital, it would never have been on such a large scale. Looking at those tall buildings, or gray grand, or complex, or chic, you can imagine how prosperous, drunk, and bizarre the city would have been at that time! How desirable!

But now, all this has turned into history, into ruins, thrown to the bottom of this vast sea by nature and by the endless reincarnation of years. It's really a time passing, things are not people!

After a burst of emotion, Yu Tianxiao couldn't help but immediately say to all the students behind him: "It's still the old rule, look for the tall buildings in the city, and then enter them to explore." ”

"Yes!" All the students immediately responded in unison.

Immediately, wow! Whoosh! Whoosh! Under the leadership of Yu Tianxiao, everyone once again broke through the sea water and flew deeper into the city.

Twenty minutes later, they came to a huge palace with nearly 100 floors high. Although the palace was not the tallest in the city, it was the tallest of all the buildings they had come across so far, and it also looked so opulent and elegant that it was the seat of the magnates of the past.

Only where these real magnates live, will there be real treasures, because at that time, nature suddenly changed, disasters struck, and some people could only save their lives, but could not take away their money and treasures; And some people don't have time to prepare for anything, and they are suddenly sunk into this underwater world.

Only those who are truly strong can escape with their own abilities, while the vast majority of ordinary people and rich people can only become fish and shrimp, and the belly of the blue star beasts of the sea can only be eaten.

In this way, most of the treasures they left behind will also remain in their abodes. As for space storage appliances, especially large-capacity space storage appliances are not something that the average wealthy class can afford to buy, they can buy! Another point, it is difficult to say whether there was space storage in ancient times?

In short, along the way, Yu Tianxiao and they searched according to such a law, and under normal circumstances, there would be some big or small gains, so they would only search in these tall and magnificent buildings.

Standing in front of this tall and magnificent palace, Yu Tianxiao couldn't help but say to all the students behind him: "Old rule, I will go in alone to investigate the situation first, and after I find that there is no excessive danger, you will go in again!" ”

"Yes! Captain! The students all responded immediately, and their hearts were filled with endless gratitude, if there was no super captain Yu Tianxiao to protect and explore the way along the way, then they didn't know how much they would die! So it is no exaggeration to say that Yu Tianxiao is the protector of their assessment trip!

"Be careful, Tianxiao!" Just as Yu Tianxiao was about to set off, Lan Xing'er couldn't help but immediately say with concern.

"Don't worry, I'll be careful!" Yu Tianxiao first shook Lan Xing'er's hand, and then with a whoosh, it turned into a streamer, and directly rushed open the gate of the palace that had existed for I don't know how many years, and rushed straight inside.

When Yu Tianxiao rushed into the palace, he couldn't help but brush it, and it landed on the ground of the first floor of the hall.

After standing on the ground of the main hall, Yu Tianxiao couldn't help but look around. I saw that this first-floor hall was extremely spacious, and it was even taller! At a glance, there is an area of several square kilometers under the visual inspection, and Yu Tianxiao stands in the middle as if he is a small point.

The main hall is completely integrated and not divided, and the golden pillars support the entire hall, making it look even more splendid.

After standing in the center of the main hall and looking around for a while, whoosh! Yu Tianxiao immediately turned into a streamer and began to search around the entire hall. Whoosh! Whoosh! I saw that Yu Tianxiao's figure was extremely fast, like lightning and cold light, flickering and flying in the hall again and again, shuttling in all corners and different places to find it.

Although Yu Tianxiao also had a detection instrument on him, because the detection instrument was not high-end, it was sometimes better for him to search with the naked eye in person, for example, it was like this now.

After a while, the entire hall was searched by Yu Tianxiao, but unfortunately, nothing was found! In this way, Yu Tianxiao couldn't help but feel a sigh of regret in his heart. However, it is not surprising to think that who would put a treasure on such a large surface? If there is a treasure, it should be hidden in a hidden place, otherwise it will not be called a treasure!

Thinking of this, I saw Yu Tianxiao swish, and walked down the high spiral staircase to the second floor.

Yu Tianxiao does not go up step by step, but completely relies on flying, whooshing! A few seconds later, Yu Tianxiao came to the second floor of the palace.

After entering the second floor, Yu Tianxiao couldn't help but find that this place was similar to the palaces he had been to before, with the main hall on the first floor and the rooms on the second floor. The same is true of this palace, the first floor is an incomparably large hall, and the second floor is also a room of various sizes. I saw that the rooms were arranged in a very orderly manner, and there was almost no end in sight.

Seeing this, Yu Tianxiao couldn't help but shake his head, and then whispered to himself: "There are so many rooms, you can't search by yourself, it's better to let everyone come together!" As soon as the words fell, Yu Tianxiao immediately turned around and was about to go downstairs.

However, just as he was about to go downstairs, boom! In an instant, the door of a large room was slammed open, and this collision, like a bomb explosion, shattered the huge door and flew away.

What the! Seeing this, Yu Tianxiao couldn't help but be startled at first, and then, his eyes were round, and his eyes looked at the explosion like electricity, and under this look, Yu Tianxiao couldn't help but be completely stunned!