A famous person once said, "People, what they are most afraid of is hesitation!" Because hesitation makes people confused and uneasy, and he is caused by not having a choice. But once you've made your choice, you'll have a goal to move forward with, and your hesitation will be self-defeating.

Song Xiaotian is the same, he was also hesitating before, whether to advance or retreat, but now he has a choice, so he is quite calm and calm, at this time his heart is full of something called bravery. I don't know how far I went down, but I heard a sudden sound of ticking water from the cave.

Song Xiaotian knew that this was about to arrive at the place, so he quickly sped up, and finally even turned into the wind, and moved forward quickly, and in less than a few breaths, soon a huge cave appeared in front of his eyes, but it was cold and damp inside, the humidity was quite heavy, and an underground river slowly waded through, making a rattling sound.

"What kind of place is this?" Song Xiaotian asked himself, along the way, he didn't find any danger, but he instinctively felt that there was an inexplicable danger approaching him, and it was getting closer and closer. It's just that he doesn't understand where the danger comes from, it seems to exist everywhere, but it doesn't seem to exist, as if it can come at any time, and it seems to be far away, this feeling is very mysterious and weird.

Until now, he didn't know how deep he had reached, but he felt that the aura of heaven and earth around him was several times richer than that outside. Continuing to move forward, his mental power is highly concentrated at any time, and once there is a change, he will launch an attack, and now the control technique has increased his sword speed several times.

After walking for about ten minutes, Song Xiaotian appeared in front of an ancient city, no, to be precise, in front of the ruins of an ancient city, this is an ancient city that has been buried, and I saw four words written on the city: City of Ten Thousand Beasts.

When he walked to the gate of the City of Ten Thousand Beasts, suddenly the bronze gate that had been sealed for an unknown number of years suddenly opened, and with the opening of the gate, a scene that made him frightened appeared in front of his eyes. In his line of sight, there are countless dense corpses of spirit beasts, each of these corpses is more than ten zhang long, dozens of zhang, and some are even hundreds of zhang high, these bones have been washed by the underground river water for many years, and now they are mottled.

Everything is so fragile in the face of time, there are no exceptions, maybe only those legendary supreme immortals can really live forever.

Of course, that's just history, true or false, there is no way to verify!

"The City of Ten Thousand Beasts? Could it be that this is really the place where all the beasts once lived? God, such a huge city, how powerful was this City of Ten Thousand Beasts at that time?" Song Xiaotian couldn't imagine it, because he had no basis for imagination, he had to know that this was the ancient city.

Shuttling through them, walking between these corpses, although there were only some bones left, Song Xiaotian could still feel a trace of huge coercion from their huge bodies, just from the dead corpses of these spirit beasts, he could feel how brilliant and powerful they were when they were alive. It's just that they are too powerless in the face of the years, so they all fall, and no matter how heroes you are, you will eventually turn into white bones one day. Any of the corpses here could have been invincible heroes, immortal beings, capable of picking the moon with the stars, competing with the sun and the moon, fighting against time and fate, but now they are nothing more than bones.

Song Xiaotian felt that his mood was a little depressed, he could understand this mood, and touched the bones of these spirit beasts with his hand, and a cold and damp feeling came to his heart, but the corpses of these spirit beasts did not instantly turn into dust like those spirit beasts in the cave before.

Although these bones have long been mottled and broken, and have long been fossilized by the passage of time, they are too powerful in their lifetime, so even if the years are ruthless, they cannot be wiped out for a while, this is a silent resistance, a rebellion against time.

At this time, Song Xiaotian was thinking in his heart: What is the origin of these spirit beasts, why did they die in this unknown underground ancient city, and what happened in the first place. Although he didn't know the specific things, he also understood that it must be an earth-shattering turmoil, and it may be a shocking war.

Song Xiaotian's heart was extremely shocked, every skeleton here was incomparably desolate and ancient, as if it had gone through tens of thousands of years.

Even if it was the weakest-looking corpse, the coercion released was countless times more terrifying than the most powerful existence Song Xiaotian had seen before. Although the corpses of these spirit beasts have been weathered into fossils, the eyes on the heads of each of them are open, and they look at the endless sky, as if they are roaring and roaring towards the higher parts of the sky, as if they are complaining about the injustice of the sky.

"Kill all the heavens and beasts, and protect the prosperity of my human race for eternity!"

"Terran Yonglong!"

"In exchange for the immortality of the human race, although I die, I will not be shaken!"

Suddenly, there was such a loud and powerful roar from the depths of the ancient city, this sound turned into a sharp arrow, straight into the hearts of the people, Song Xiaotian heard it, and was even more emotional.

"Oh my God, if this is the words left by the ancestors of my human race, could it be that the human race slaughtered all the beasts in the first place?" Song Xiaotian suddenly had such an idea. Protect the human race and punish all the heavens and beasts, this hint is obvious, could it be that the human race and the beasts were opposites?

In order to take a look, Song Xiaotian's body turned into the wind and flew towards the source of the sound at great speed, he wanted to find the secret buried in the long river of time.

Half an hour later, he stopped, shocked by what he saw, and stared at the remnants of the city in front of him with wide eyes.

These three words, ancient and vigorous, tell an ancient history, as if announcing an indelible past to the world.

This ancient city, with its walls pitted and dilapidated, has become a ruined city with the passage of time. Around the city, many spirit beast bones surrounded it, and some huge spirit beast claws were left on the top of the city wall as ironclad evidence of history.

Seeing all this, Song Xiaotian's heart was shocked, and he thought of a possibility, in a certain era in ancient times, Lieyang City was slaughtered by the City of Ten Thousand Beasts, and the two sides fought in a scuffle, never dying. The human powerhouse in the city of the Burning Sun, for the safety of a city, entered the city of ten thousand beasts alone, slaughtered all the beasts, and guarded the safety of this city.

In order to find a clue, Song Xiaotian flew through this ruined city, but there was nothing in the huge city, only some buildings built of special stones remained, but they also lost their original appearance under the erosion of time and became dilapidated ruins.

Could it be that in ancient times, human beings were weak, and all beasts were powerful, and they harmed the human race? This is the biggest inference in Song Xiaotian's heart, otherwise, it would be impossible to have the pride of protecting the human race for eternity as a human being.