Under certain conditions, bones can exist for millions of years and become fossils. However, those conditions were extremely harsh. However, in the abandoned prison of this desolate city under the sea, it is obvious that such extreme conditions are not met.

The sea creatures that exist here are not the same as ordinary sea creatures. Ordinary bones can't withstand the gnawing of these sea creatures. It can be a few years before the bones become incomplete. But the bones left behind were so well preserved? Han Fei was shocked.

Crossing the rotten threshold, Han Fei also ran over and pinched it a few times, and found that the bone was quite hard, and he didn't know if it was because he had been cultivating for a long time, or what was going on......

With doubts, Han Fei continued to walk towards the cell in the back. The walls along the way are so old that they look moldy everywhere and are crawling with all kinds of strange mosses. Some mosses are attached directly to the bones.

Crossing hundreds of cells, Han Fei found that not every cell had bones. Perhaps, this also has something to do with the strength of these prisoners' cultivation. When the city was in a disaster, no one should have let them out, and many people were trapped in prison cells.

After turning several times in a row, Han Fei didn't find anything special, not even a single marine animal.

"Hey, Uncle Liumen, did you say that there would be a place on the bottom of the sea where there are no even marine animals?"

Han Fei was very puzzled, and it stands to reason that he shouldn't. Even if it's safe here, you're at the bottom of the sea! You don't have small fish and shrimp, and you have to have some hermit crabs and small crabs that steal their lives, right?

The eyes of the Six Gates Starfish rolled: "I feel a little dangerous here." ”

"Dangerous?"

Han Fei frowned, not knowing what was dangerous in this place. Until now, he hadn't seen a single living thing that could move, so what danger could it be?

Suddenly, at a turn, Han Fei stopped.

There is no way. But after turning the corner, there is a passage that continues down.

Han Fei raised the flashing light, shone it, and then walked down the steps.

"Hula......"

Just as Han Fei was about to go down to the next layer of prison, he suddenly saw a pair of eyes flickering. Then, a figure flickered by.

"Who?"

Because it was too fast, Han Fei just glanced at it. The man's height seemed to be much shorter than his own. Then the man ran out in a strange position, as if he was half running and half swimming.

Han Fei summoned the fishing rod and swung the rod to hook it. But after two turns in a row, the thing was gone.

"Huh, is there anyone else?"

The Six Gates Starfish said, "I feel a little familiar. ”

"Are you familiar?"

Han Fei said speechlessly: "Is it difficult, can you still know it? You have been closed in ordinary fishing grounds for 300 years." Even if you were here as a child, who would be able to stay in this place for 300 years?"

Several of the big eyes of the Liumen starfish purred: "I don't know, I just feel a familiar aura." ”

Han Fei took back the fishing rod, and there were dozens of blue sea swimming dragon knives on his side. If there are creatures here, are there any secrets hidden?

Han Fei didn't impulsively pursue that thing. Now, the prison that catches my eye is much better preserved than the one above.

Han Fei walked along the road and came to a prison cell. The door had long since been broken, and there was a skull inside.

Han Fei only felt that goosebumps all over his body were rising. If you want to keep it, just keep a whole corpse! But you have a skull, what does it mean? What about your body?

Han Fei felt a little uneasy more and more. From the moment he first came in, he felt that something was wrong.

Han Fei turned his head abruptly, but he didn't see anything. Within the confines of spiritual perception, it is also empty.

Walking along the cells, Han Fei found that many of the cells were empty. If there is a vacant space, then there is either a skull in the cell. Well, the rest of the body doesn't have any.

Han Fei tugged at his mouth: Could it be that there are still some monsters with collecting habits here? Or does this city have a custom of throwing their heads into the cell after killing criminals?

All the way forward, Han Fei still didn't find anything. Instead, he found another staircase going down.

"What the hell, how many floors does this prison have?"

Han Fei suddenly shuddered: Don't tell me, there are 18 floors here! You can still see the oil pot or something below, so why don't I turn back now......

This time, Han Fei saw a pair of eyes staring at him in a dark corner again. Han Fei was horrified, but his eyes just looked at him for a moment, and then ran away again.

This time, Han Fei stepped out and quickly appeared in the third layer of prison.

As a result, as soon as he entered the lower prison, a fishy wind blew in his face.

It's too late, it's fast, and dozens of blue sea dragon knives are slashed out at the same time. Han Fei controlled the Blue Sea Dragon Sword, almost forming a line, slashing towards the darkness.

However, only the sound of "dingding" was heard. On the ground, a strange figure was flicking its tail, and the blue sea swimming dragon knives were thrown out one after another.

"Lizards, baby fish, snakes?"

There was no need for Han Fei to guess, he saw a person's head appear on the ground. Then, Han Fei really wanted to run away, that thing was too ugly!

To describe it in detail, it is a humanoid head with only two holes in the nose and a mouth full of fangs. It even had two bony hands.

The movement of this thing is carried out by these two hands. The hands of this thing, except for the webbed, are almost the same as those of a thin human person.

Further down, it was what really shocked Han Fei. Because the body of that thing is like a fish, and it has a long tail.

At this moment, the tail of the thing arched, revealing the bone spurs on the tail.

In Han Fei's eyes, the data shows:

Name: Undead mermaid

【Introduction】The lowest creature among marine primates, evolved from ordinary mermaids in a special environment, with extraordinary eyesight. Their teeth are extremely sharp, and the strongest can bite through medium-grade spiritual weapons.

[Level] 37

[Quality] mutation

[Contains aura] 3358 points

【Edible effect】Do not eat

【Collectible】None

【Non-absorbable】

Han Fei was stunned at the time: Why do you call this thing a mermaid? What kind of ordinary mermaid did it evolve from? It has evolved for so long and evolved into such a thing. How ugly did it have to be before it evolved?

I saw that the immortal mermaid suddenly jumped up, and its two hands showed sharp claws. At the same time, his mouth opened widely, revealing a mouth full of fangs, as if he wanted to gnaw Han Fei alive.

"Bang!"

I saw a small seal slapped over, and Han Fei used eighty percent of his strength to shoot this thing. If nothing else, it's just too ugly. Thinking that if this thing pounced on him, it would be disgusting! Simply, Han Fei didn't need a blood-drinking knife, and directly took a watermark and slapped it.

The undead rolled on the ground many times, and finally crashed directly into a cell. Han Fei immediately rushed over, dividing the watermark and preparing to shoot again.

As a result, the next moment, a humanoid skeleton was thrown by the thing. Han Fei subconsciously slapped it with a seal, slapping the bones all over the place.

But what caught Han Fei's attention the most was that this skeleton actually had a tail. However, this body is relatively intact. From the head to the pelvis, it's all there.

And under the pelvis, there are bones one by one.

"I'm a good girl, this is the real mermaid, right?"

Han Fei swallowed his saliva: In the past, everyone used false rumors that there were mermaids in the sea.

Han Fei has been wandering in the sea for so many years, and he has never seen a creature like a mermaid. Otherwise, he will definitely ask to go home and be a little wife.

But now, he felt that his perception had to change. Maybe the mermaid is a real creature, but it's just not as beautiful as it seems.

At this moment, the undead mermaid was nesting in the corner, looking at Han Fei in horror. From time to time, it yelled at Han Fei, and with a mouth full of buckteeth, Han Fei was about to vomit out stomach acid.

This immortal mermaid was paralyzed by Han Fei, and the lower half of his body seemed to be unable to move. At this moment, he could only use his two hands to pull and yell at Han Fei.

Han Fei glanced at it with disgust, and then struck it dozens of times with a watermark "bang", directly slapping it alive.

"I'll keep you from dying, your name is so bullshit, isn't it really dead? damn it. What the hell is this? Why would there be such a thing as a mermaid?"

"Hiss......"

Six Starfish: "Be careful. ”

Han Fei backhanded, the blood-drinking knife was swung out, and another immortal mermaid was cut into two pieces by Han Fei.

Han Fei's face was ugly: "This ghost place, it won't be all this thing, right?"

Han Fei didn't think there would be any treasures here now. Sure enough, not all secret realms have chances......

When Han Fei walked out of this cell, he found that at the end of the passage, there were several dark eyes staring at him. This time, though, instead of rushing up, these things gradually retreated.

Han Fei hesitated for a moment, looked at the circuit, and finally chose to move on. It's really that he is too curious, mermaid belch, and not Yang Ruoyun's kind of person who has completely become a fish. This is the real mermaid! What will happen at the end of this prison?

Liumen Starfish pulled Han Fei's shoulder: "Do you want to go?"

Han Fei: "I'll just take a look, and I'll go out after a look." ”