It was as if a huge waterfall had fallen violently, and the immeasurable water rushed into the hall, staggering everyone and even all the equipment in the blink of an eye, and no one had the strength to fire at the two of them.

Shi Tiexin saw the opportunity, grabbed the wrench and shook down an empty jar. Lift your breath hard, let out a loud roar, and try to put the jar upright. He was short, and he got into the jar with Yoyo in his arms.

It was pitch black inside.

As soon as my feet were cold, water rushed from under my feet and overflowed my insteps. However, the tank is tightly sealed, and there will be no air leakage for a while. It's just that as the water surface rises rapidly, the entire tank floats up together, allowing the two of them to soak in the water.

Whew, snort, in absolute darkness, only the breathing of the person in his arms could be heard. Underneath the cold water, you can only feel the fiery body of the person in your arms.

Isn't this environment and posture a little too ambiguous?

Shi Tiexin shook off the charming thoughts in his heart, stretched out his hand to feel the balance of the tank, and tried to make the jar last a little longer. Before long, there was a thud, and the jar had reached its top, and the sea had apparently filled the entire secret harbor.

Shi Tiexin could feel that many ghost soldiers were struggling and drowning in the dark water, and their strong vitality could allow them to hold out for a while longer, but all that was left for them during this time was endless despair.

There was a distant roar in the water, and the water was still pouring and spreading, surging towards the two floors above. In the face of this ruthless fire and water, all the lives in this underground base will inevitably die.

Only Shi Tiexin and Youyo, if they have prepared in advance, may be able to survive.

Shi Tiexin asked while thinking about the tools he chose, "Let's go back the way we came?" ”

"yes, down the drain."

"Is there a better way?"

"It's gone. But one thing that has the good thing is that such a large amount of seawater has been washed away. Yoyo's voice sounded a little tired: "By the way, don't turn on the lights for the time being to avoid being attacked by others." ”

"Don't worry, even if it's pitch black, I'll find my way." The water surface was rising, and Shi Tiexin breathed the last oxygen: "Let's still be in that position, I'll open the way, you hold me tight, and watch me take you to escape!" ”

Yoyo changed his position and hugged Shi Tiexin's neck from behind: "Then it's up to you, big hero~~"

The voice was crispy and glutinous, which made the old man a little moved.

But now is not the time to do color!

Shi Tiexin prepared for a while, adjusted the map that came with the platinum driving technique, and got used to the movement method and displacement distance in the water: "Put on the mask, ready, three, two, one, go!" ”

Puff plunged into the water, and the strong water pressure immediately squeezed in from all directions. The water pressure here is no different from the water pressure in the sea at a depth of 70 meters.

The heavenly golden light shone fiercely on the progress bar of the Invisible Water Tribulation Sword Technique, and now was not the time to be stingy with the golden light.

[Invisible Water Tribulation Sword Level 3 Cultivation Progress Increased: Perfect]

[Activation attribute: Invisible Water +3]

[Merge Attribute: Invisible Water +6]

The fourth layer has not yet comprehended a little, so it is impossible to continue to add points, but the invisible water at level +6 is enough to provide a powerful boost. The Invisible Water Robbery Sword is an assassination sword technique, and it is not a specialized water warfare technique, but it does have an advantage over other exercises in studying and using water nature.

The invisible water of +6 can only condense an inch of invisible sword light in the air, but in the water body, it can be turned into an invisible water stream, and the water extends and floats and flows, so that Shi Tiexin suddenly has a little less resistance and a little more freedom when he advances in the water.

The emergency lights were all off, but I could still feel that there were people everywhere in the water. The dense crowd of people struggled, suffocating miserably.

If Shi Tiexin turns on the light at this time, he will definitely be seen by someone to see the oxygen mask on his face, and I don't know how many people will desperately come forward to fight for it. Now, like a shark swimming in the dark deep sea, Shi Tiexin swam swiftly and silently to the location of the gap in the ceiling of the map.

The map was not wrong, and it was found at once, which made Shi Tiexin breathe a sigh of relief.

Swim out of the gap and follow the corridor to the location of the sewer. The hallways were also full of people, and in addition to people, there were also some strange aquatic creatures swimming in the dark, and they were all strange creatures that had been washed by the water in the sewers.

In a lightless environment, vision is completely useless, and only the sense of touch can play a role.

Crackling, the Infernal Thunder on his arm produced an electric charge reaction, and Shi Tiexin's instinctive Water Tribulation Sword stabbed out with his backhand, and he stabbed through something with a poof.

Not knowing if it was a human or some kind of aquatic animal, Shi Tiexin could only feel that there were many things in the water rushing up to bite the creature in the sword.

Is this water so dangerous?

Shi Tiexin's mind was all lifted, and he walked away with his sword. The effect of the invisible water was maximized, and the camera moved when it dispersed into the water, and along the way, many inexplicable creatures attacked, and were stabbed again and again by the water robbery sword.

Perhaps this dark, high-pressure, audio-visual and useless, and all-water environment is exactly the spiritual core of the Water Tribulation Sword, so that Shi Tiexin did not intend to practice, but the fourth layer of the Water Tribulation Sword Technique has been naturally comprehended, and it is bright.

Boom, some huge creature in the water rushed over, rolling up a strong vortex.

Shi Tiexin suddenly remembered the huge deformed creatures he had seen in the sewers. It may not be the result of biological modification, but it has been polluted in some way and has become a terrifying water predator. Now the predator in the water seems to have decided that Shi Tiexin and Yoyo are more delicious and meaty, and they rushed to this side.

The facial nerve network transmitted a pinprick-like sense of danger into his mind, letting Shi Tiexin know that it had opened its bloody mouth and bit it this way.

Want to eat me?

The light of the Heavenly Dao shines on that progress bar!

[Invisible Water Tribulation Sword Technique Level 4 Cultivation Progress Increased: Perfect]

[Activation Attribute: Invisible Water +4]

[Merge attribute: Invisible Water +10]

Wow, Shi Tiexin was like the most flexible fish, turning around in the water, passing by the predator. At the same time, the Notai knife in his hand lightly drew a circle, drew a coiled water ring in the water, and sent it into the predator's mouth at once.

The predator's big mouth didn't eat anyone, but swallowed a ring of water, and he felt lonely.

【Attribute qualitative change begins】

【Attribute Qualitative Change Completed】

[Qualitative Change Attribute: Invisible Tribulation Force]

The predator rushes out and turns, ready to turn back and chase again. But it suddenly twitched, and the hard, lupus-covered skin fluctuated, and a lot of pus and blood suddenly seeped out from under the skin, making it look miserable.

The other predators, stimulated by the smell of pus and blood, pounced on them like crazy, and in the blink of an eye, they bit the overlord of the water miserably.

But before it was bitten, it was actually dead.

Under the protection of the skin of the heavy scale armor, a sword mark of destruction appeared on its heart.

This is the Invisible Water Tribulation Sword, the top assassination sword.