As the water poured in, the whirlpool continued to expand and deepen.

With a loud rumbling sound, a terrifying black abyss appeared beneath the whirlpool.

Strange black mist surged in the abyss like a tide, and this abyss was like a space-time vortex, and the abyss was connected to hell or another dimension.

When the abyss slowly appeared, the whirlpool disappeared.

We were still clinging to the bronze chains, probably startled by the sudden change, and we didn't dare to let go of our hands for a second.

The rumbling came to an abrupt end, followed by a strange roar.

We were shocked, oops! Could it be that the unknown beast beneath the abyss has appeared?

As soon as I thought of that huge demon beast, my body began to tremble inexplicably, we couldn't be the opponent of that demon beast at all underwater, and we had almost no choice but to wait for death.

When we looked down into the abyss again, a huge black shadow like several trucks slowly swam around and around the abyss.

Sky!

The demon beast hiding in the abyss has really appeared, what should I do?!

Just when we were panicking, Dou Xiaoyue's hurried voice sounded in our ears: "Hey! Feed! Run! Run! Something is coming up from underwater! Something is coming up from underwater! ”

Dou Xiaoyue's words were like a dense drum beat, beating so our hearts that I felt so nervous that I almost stopped breathing.

Lian Mingche made an upward gesture to us, signaling us to abandon the operation and hurry back to the ship.

Black Sunglasses grabbed my arm and dragged me desperately towards the water.

But just now, not far upstream, I heard Dou Xiaoyue shouting anxiously: "It's too late!" That thing has caught up! ”

When we turned around, we saw that the huge black shadow had rushed out of the abyss.

The thing was at least forty meters long, covered in brown scales, and looked like a terrifying serpent, but it was clearly not a snake, it had legs under its belly, and long horns on its head, which was quite similar to the legendary dragon.

The giant beast swung its tail slightly, and it could swim out more than ten meters, and we were afraid that it would catch up before it surfaced, just when we were anxious, Dou Xiaoyue suddenly shouted on the communicator: "Ancient Tower!" Hide inside the ancient tower! ”

Just now I was probably frightened and confused, and my mind was like being filled with heavy lead, muddy, blank, Dou Xiaoyue reminded us, and then we remembered that the ancient tower was not far behind us, and now the ancient tower is our only place of refuge.

Before we had time to think about it, we immediately turned around and swam desperately towards the ancient tower, hoping to enter the ancient tower before the giant beast caught up, and maybe we could take a break from it.

We quickly approached the ancient tower, and soon found the entrance at the base of the ancient tower.

However, we were extremely disappointed that there were two heavy stone doors at the entrance.

These two stone doors completely cut off our way to survival, and the hope that was full of them was shattered and extinguished in this instant.

I pushed the two stone doors hard, but they didn't move.

I was so angry and anxious that I was about to give up when I suddenly found a very inconspicuous square groove in the middle of the two stone doors, which had a keyhole, and it seemed that these two stone doors needed a specific key to open.

But where is the key?

The giant beast was getting closer and closer to us, and although I was underwater, I still felt cold sweat oozing from my back, and for a moment my mind was racing, and suddenly, I remembered the wooden box wrapped in a strange flower, and there was a key in the box. Could it be the key to this lock?

I didn't have time to think anymore, and now I had to take all my gamble, and there was no other way, so I quickly opened a small pocket on the left side of my waterproof backpack, and pulled out the wooden box from inside, then opened the lid and took out the bronze key from the box.

While silently reciting the blessing of the Bodhisattva in my heart, I inserted the key into the keyhole in the center of the groove, in fact, when I inserted the bronze key, my hands were shaking wildly, because I was not sure at all, if this bronze key was not the key to open the stone door, then our fate would be self-evident.

Life and death, at this moment!

All I could hear was a crisp sound, and the two stone doors quickly opened to both sides.

At this time, the giant beast was less than ten meters away from us.

Secretly said "thank you to the Buddha" in the bottom of his heart, and then went down the water into the tower.

As soon as we entered the tower, the stone gate slammed shut behind us, just blocking the giant beast from the outside, and the giant beast did not stop in time, and slammed its head on the door, making a loud noise, and the entire ancient tower trembled violently.

We rushed forward involuntarily following the inrushing current, and I don't know how far we were swept away, when my feet suddenly stepped on land, and it was only at this moment that I breathed a sigh of relief.

We climbed up from the water on the stone stairs, and then sat down on the stone stairs panting, feeling like our whole chest was about to explode, and our hearts were still trembling, and we felt like we were going to die.

I looked around with a searchlight and found that we were in a small corridor, with heavy dilapidated brick walls on the left and right.

I can't help but wonder, how can there be a corridor in the ancient tower?

However, I soon understood that this road is a barrier carefully designed by the craftsmen, because when the stone door is opened, there will inevitably be a large amount of river water pouring into the tower body, under the erosion of the river water for many years, the inside of the ancient tower is easy to decay and collapse, in order to avoid the river water pouring into the inside of the tower, the craftsmen specially built such an aqueduct at the entrance of the ancient tower, that is, the mezzanine structure, the river water that pours into the ancient tower is isolated in the mezzanine.

Thinking of this, I can't help but have a sincere admiration for the creativity and imagination of the ancients.

After sitting on the stone stairs and resting for a while, I looked at the needle of the oxygen cylinder and found that we had consumed most of the oxygen, and I couldn't help but feel a little worried, afraid that the remaining oxygen would not be enough to use.

I just wanted to take off the oxygen mask, but Lian Mingche stopped me and told me in sign language not to take off the oxygen mask for the time being, because the tower is sealed, so many years have passed, I don't know if there is oxygen in the tower, and the air inside the fully enclosed ancient tower cannot circulate, a large number of bacteria multiply in the air, and the air inside has long become a poisonous gas that can kill people.

We took off our wetsuits and fins, changed into our daily attire, and then took out the weapons in our waterproof backpacks, Lian Mingche held a submachine gun, I and Black Sunglasses each took a pistol, Lian Mingche motioned for us to open the insurance, no one knew what kind of crisis lurked in the ancient tower, we held the gun tightly, and cold sweat continued to ooze from the palms.

On the top of the stone staircase, there is a long corridor, which is about five meters wide and three meters high, and has an arc top structure, which has a stronger bearing capacity.

Lian Mingche opened the way in front with a submachine gun, and I and Black Sunglasses guarded his left and right flanks, and we slowly advanced cautiously in a zigzag formation.

The deathly silence in the corridor, with only the sound of our empty footsteps, makes people feel a strong sense of oppression.

Turning a corner, there was a faint light not far ahead of us.

This is somewhat unexpected, how can there be light in this dusty underwater ancient tower?

We walked quickly and carefully towards the light, only to see a row of lanterns burning silently on the stone walls on both sides of the road, the lamps were forged with black copper, in the shape of a Buddhist lotus platform, and there was a white ointment solidified in it, and there was a short wick in the middle of the ointment, and the two burning lamps were like ghosts and ghosts in the dark, reflecting the surroundings desolately, and our shadows were projected on the old stone wall, which had a very strange feeling.

Lian Mingche took off the oxygen mask first, turned back to us and said: "These two flames are burning normally, which means that the oxygen here is sufficient enough, and you can take off the oxygen mask with confidence." ”

We quickly turned off the valves, and now we have to conserve oxygen, which is still needed when we return to the surface.

Black sunglasses brushed his wet hair, muttered something in his mouth, and took off his soaked clothes and twisted them twice, only then did I realize that he had many scars on his body that were curvy like bugs, and the number of them almost crawled all over his back, which looked very scary at first glance.

What the hell has this guy been through? How did it come to this?

I was thinking about it when Black Sunglasses noticed that I was looking at him and turned around.

I hurriedly walked to a lamp, pretended to use my little finger to gently pick a little ointment and put it on the tip of my nose to smell it to relieve the embarrassment, but I found that the ointment still smelled a little pleasant, and I don't know what animal it extracted and refined.

Although it is the first time I have seen such an ever-bright lamp, I am no stranger to it, and there are such ever-bright lamps in many ancient tombs, which can burn for hundreds of thousands of years and will not be extinguished once lit. To this day, the scientific community has not been able to crack the secret of the lantern, so the lantern has become one of the most amazing secrets in the tomb.

But instead of paying much attention to the two lanterns, we looked not far ahead, and less than five meters away, a thick stone wall blocked our way.