Ye Qingyu's words made Liu Jiji's heart excited.

Entering the gate of the Sword Tower, there is a faint light inside, you can see that there is an empty space inside, obviously some kind of extremely clever space formation, it is a huge training school field, there are weapon racks, handsome platforms, marching tents, and traces of the airship port dock, compared to the black traces burned by the imperial fire outside, the inside of the Sword Tower is much better, and all kinds of utensils are only with faint traces of smoke and fire.

At the end of the school yard is a black staircase that leads to the top.

The steps are covered with traces of various battles, as well as the remains of swords, spears, halberds, and other weapons, which are inserted in the steps.

"It's all imperial weapons. ”

Although these weapons have lost their spirituality, the law and Dao power contained in them have been completely annihilated, and they are rusty, no different from a pile of scrap copper and rotten iron, but Ye Qingyu can still see that these weapons used to be emperor-level weapons, but unfortunately they were all damaged in the war, and perhaps even their owners have long been killed in battle.

You can imagine how tragic the battle was back then.

The battle in this black sword tower was even more tragic than outside.

All the way up the black staircase, I walked through a stone gate, this stone door is a teleportation formation, and it still has some effect today, Ye Qingyu pressed on the stone door with one hand, driving the remnants of the formation inside, there was a blue light flashing in the door, and the formation reappeared again, and the three of them walked like a formation, and the sound of water ripples sounded.

The three of them were teleported to the second floor of the Sword Tower.

This second floor is still a school field, but it is more refined, it can be roughly seen that if the first floor of the sword tower is to train ordinary sergeants, then the school space on the second floor is used to train the elite in the army.

From the scale of these two school fields, it can be vaguely guessed that this black castle was at its peak in its heyday, and it was indeed more magnificent than the Chaos Twenty-one City that exists in the world today, and it should be more militarized, and it should be an ancient city that admires the army.

The three of them walked all the way, climbing eighteen floors in a row, all of which were various school spaces.

Even Ye Qingyu felt a sense of surprise.

In this way, this black sword tower is more like a military camp, accumulating terrifying military power, and along the way, not only saw the broken imperial weapon, but also saw some dried bones, the bone is like a god gold fairy iron, at a glance, these bones are definitely a martial arts powerhouse that shocked the party, but they have been dead for a long time, at least millions of years.

This ancient city is a completely militarized place.

Ye Qingyu carefully observed all kinds of traces all the way, which more and more confirmed the conjecture in his heart.

In the end, after walking through one hundred and seven stone gates in a row, the three of them came to the one hundred and eighth layer of stone gates - this black sword tower and black-hearted castle had a total of one hundred and eight castles, which further confirmed Ye Qingyu's guess in his heart.

"What the hell is this place? There was such a terrible battle. Liu Jiji sighed, and his heart was full of doubts.

Ye Qingyu walked to the last stone gate, this stone gate was more magnificent than any of the previous stone gates, it was three or four hundred meters high, and the door frame was engraved with ancient runes, which were lines that Liu Jiji had never seen, but when Ye Qingyu saw it, he was more sure in his heart, because he had already recognized the origin of these runes.

"There was a betrayal here. Ye Qingyu said.

He looked around, in the space of this level, he saw a lot of corpses, ancient remains like a mountain, it was obvious that the most tragic battle had taken place on this level, it can be roughly imagined, back then, after the defenders and invaders of this black castle went through a terrible battle, this became the last line of defense, and the last and most tragic battle was fought.

"Your Majesty, doesn't your majesty already know what is happening here?" Liu Jiji looked at Ye Qingyu with curiosity in his eyes.

Ye Qingyu nodded and said: "If I guessed correctly, the former owner of this ancient castle was called Ye Chongsheng, the dark realm of the past was created by him, and the Chaos Ruin Realm Chaos Twenty-four Cities of the Great Thousand Worlds was also created by him, and the masters of many Chaos Cities in the past were his subordinates, once upon a time, he could be said to be the master of the entire Great Thousand Worlds, although he was not famous in the long history, but he monopolized an era. ”

"Ye Chongsheng?" Liu was stunned and shook his head, he had never heard of this name.

Ye Qingyu nodded and didn't say much.

Ye Chongsheng once said that when he was almost dominating everything, he encountered a betrayal, everything he ran was destroyed in this betrayal, and the mastermind of the betrayal was the Emperor of Heaven who had been hidden in the shadows for thousands of years, everything was overturned, and since then, the Emperor of Heaven began to control everything in secret, such as the camp of the guardians of the dark realm, that is, the camp of the Emperor of Heaven who betrayed Ye Chongsheng, however, all of this is actually within Ye Chongsheng's calculations, he deliberately faked his death in this betrayal and escaped, and carried out reincarnation, this betrayal initiated by the Emperor of Heaven, although it destroyed many of Ye Chongsheng's arrangements, but in fact, the real core arrangement did not affect it。

These things, when he was in the Black Demon Abyss Labyrinth, Ye Chongsheng personally said it to Ye Qingyu.

However, talking about these things at that time, for Ye Chongsheng, it was just a kind of nostalgia for the past, and Ye Qingyu's attention was also focused on the matter itself, but he never thought about how tragic such a betrayal would be and where it would happen, let alone that it had something to do with the ancient city that disappeared in the Twenty-Four Cities of Chaos.

Ye Qingyu also deduced it after entering this black castle, based on many clues and clues.

As a result, the original Twenty-Four Cities of Chaos in the past have become twenty-one cities, and the mystery of the missing Chaos Ancient City can unveil some mysterious veils.

The last stone gate is obviously the final level.

Even Liu Jiji could see that the enemy who invaded here at the beginning was not able to break through this stone gate, that is to say, the forces of the Emperor of Heaven who betrayed back then, after attacking this stone gate, were blocked and could not advance, and in the end, the Emperor of Heaven burned the entire ancient castle with a netherworld fire, but failed to completely destroy it, and could only retreat in a huff.

The black castle has entered the turbulence of time and space, it may be the means of the Emperor of Heaven, or it may be the self-exile arranged by Ye Chongsheng.

The runes on the stone gate are the one hundred and eight ancient characters that have not been completely derived.

Ye Qingyu had seen all the deduction process of one hundred and eight ancient characters on the tombstone in the ancient city of gods and demons in the Black Demon Abyss.

Therefore, this stone gate, which the Emperor had never broken through with all his might, was just a pediatric for Ye Qingyu, and he ran the rune technique and easily restarted the stone gate again.

Entering the stone gate, it is not a training school after that.

The singing of birds and the fragrance of flowers, a distinct and beautiful world, appeared in front of the three of them.

"Who is it?" In the distance, two figures galloped in, shouting from afar.

Ye Qingyu smiled slightly: "I finally found you." ”