Qianyue was still in retreat to refine the Dragon Phoenix Sacred Heart, so Ji Tianxing didn't bother it.

He left the world of the sword with the black dragon and returned to the sky over the East China Sea.

When the black dragon appeared in the sky, its huge body was thousands of feet long, bringing up a huge wind, covering the sea with a large shadow.

It let out a happy dragon groan, circled in the sky for a while, and then flew in front of Ji Tianxing and Yun Yao.

Yun Yao also showed an expression of disbelief when she saw that it had changed so much, and she was happy and relieved for it.

After chatting a few words between the two sides, the black dragon carried Ji Tianxing and Yun Yao towards the East China Sea Guiruins.

Now that the black dragon has reached the first level of the soul refining realm, its flying speed is also incredibly fast, and it can travel 120,000 miles a day.

Although, this is not as fast as Ji Tianxing's flying speed.

But its mana is incomparably abundant, and its power is long, even if it flies for a month in a row.

......

Five days later, the black dragon carried Ji Tianxing and Yun Yao and flew in the sea area to the northeast.

Below is the endless blue sea, with islands scattered every few tens of thousands of miles.

Yun Yao sat on the back of the black dragon and had been meditating and pranayama.

Ji Tianxing stood on the back of the dragon, looking at the sea in front of him, his face becoming more and more solemn.

He frowned, pondering something.

Suddenly, the black dragon turned his head to look at him, and said in a dull tone: "Old Ji, I feel that something seems to be wrong in this sea area. ”

Ji Tianxing was interrupted from his thoughts, glanced at it with a somewhat surprised expression, and asked, "You also see the problem?"

"Hmm. The black dragon gradually slowed down his flight speed, and said in a low tone: "I feel that the sea water in this sea seems to be darker in color, and it also exudes poison.

I also noticed just now that there are many fish, shrimp and water demon corpses floating on the surface of the sea. ”

Ji Tianxing nodded, and said with a solemn face: "That's right, the sea water in this sea area does contain strong toxicity, and those fish and shrimp and water demons are all poisoned.

If I'm not mistaken, something may have happened in this area, and there must be more corpses buried at the bottom of the sea!"

The black dragon was silent for a moment, and asked in a somewhat worried tone, "Old Ji, the water tribe won't be in any trouble, right?"

After all, you and Taiyi are sworn brothers, and I am also a member of the Black Dragon Clan......"

Ji Tianxing just thought about it for a while, and then nodded in response to this matter.

"Okay, let's go to the bottom of the ocean and see what's going on. I have a bad feeling that it will not come true. ”

Yun Yao had been awakened by the conversation between the two, opened her eyes and looked at Ji Tianxing, and asked, "Tianxing, do you have any bad premonitions?"

Do you mean that the changes in this sea area are related to the demons and the blood gods?"

Ji Tianxing bowed slightly, and said in a low tone: "Now the demon clan has sent a large number of blood god sons to frantically slaughter the people of the three clans, and the water tribe is no exception.

If the Blood God Son infiltrates the East China Sea and massacres the people in the territory of the Water Tribe, it will be troublesome. ”

Yun Yao understood his concern, and hurriedly nodded: "Since this is the case, we will not rush to the East China Sea to return to the ruins, and enter the bottom of the sea first to see the situation." ”

As her words fell, the black dragon descended from the sky and burrowed into the vast East China Sea.

It is a dragon in the sea, and it is effortless to travel through the vast sea, but it is like a fish in water.

Moreover, it and Ji Tianxing and Yun Yao all have the strength of the Soul Refining Realm, and they are not afraid of the poison in the seawater at all.

After just a few breaths, the black dragon dived to the depth of the sea ten miles deep.

The deep sea is dark, the water is cold, and the pressure is enormous.

There was deathly silence on all sides, no sound could be heard, and not a single fish could be seen.

Under Ji Tianxing's order, the black dragon continued to dive to the bottom of the sea.

When it descended to a depth of thirty miles, it finally touched the bottom of the reef and corals.

The icy seabed is rich in mineral deposits, with many rocks and reefs containing metals, as well as glowing aquatic plants and plants, all of which glow faintly.

However, Ji Tianxing and Yun Yao looked around, only to find that the coral bushes and aquatic plants on the bottom of the sea had all withered and died.

In the reef and silt, there were also large swaths of fish carcasses, most of which had rotted flesh and blood, and only bones remained.

The sea water is highly toxic, and there is black blood and carrion visible to the naked eye, which slowly swims with the current.

The black dragon shuttled quickly through the dark seabed, constantly flying northeast.

In the process, everyone only saw that the bottom of the sea was covered with dense white bones, all of which were the corpses of various fish and aquariums.

Giant whales as large as a kilometer in length, as small as slap-like fish, shrimp and shells, all of them were poisoned.

Even those water demons and water tribe people with a certain strength could not escape the erosion of the poison, and after they died, they turned into rotten bones and lay on the dark and cold seabed.

An hour later, the black dragon traveled tens of thousands of miles to the bottom of the sea.

An undersea city appeared in front of them.

It is an ancient city with a radius of tens of miles, located in a flat reef thicket, built of countless huge black reefs.

The walls of the ancient city and the buildings in the city are wrapped in algae and various aquatic plants, which looks quite strange and rare.

On weekdays, hundreds of thousands of water tribe people live in the city, they will graze hundreds of millions of fish and shrimp and raise countless powerful water demons.

Dense schools of fish, various glowing fish and water monsters will also bring a faint light to the ancient city.

Brightly colored corals also grow in the ancient city, bringing brilliant colors to the dark ancient city.

Such an undersea ancient city is gorgeous and magnificent, amazing and delightful.

However, when Ji Tianxing and Yun Yao rushed to the top of the ancient city, they couldn't see the beautiful scene.

All they saw was a cold, dark ancient city, without a glimmer of light or color.

There were only hundreds of millions of fish and shrimp corpses, and the bones of hundreds of thousands of water tribe people and water demons, piled up all over the city, exuding a permeating death chill.

Seeing such a tragic scene, Yun Yao and Heilong's hearts were heavy.

Ji Tianxing flew into the ancient city, opened the Plain Heart Eye, released the power of the divine soul, and carefully probed the situation in the city.

After a while, he probably found out the reason, and said to Yun Yao: "Yaoyao, I really didn't guess wrong, this ancient city under the sea and this sea area were destroyed by poison. ”

Yun Yao asked with a solemn face, "Tianxing, can you be sure that this matter is related to the Demon Clan and the Blood God Son?"

Ji Tianxing nodded, and said in a cold tone: "I was in the coastal cities before, I was exposed to the highly poisonous plague, and I also killed the Blood God Son with my own hands.

I'm no stranger to the power of calamity, and I'm sure it's a rebellion between the Blood God and the Demons.

The sea water not only contains strong toxicity, but also a faint demonic energy remains, which should be the catastrophic power released by the Blood God Son. ”