After diving into the sea, the sound on land seems to come from another world. Although the sound travels faster in the water, the sound from the surface of the sea does not sound real.

In the past, Mochi was not very interested in swimming because there were so many people in the pool that he had to avoid other people if he couldn't swim far. The deepest impression was when Mochi dived in the deep water, the bottom was very quiet, and the midday sun shone into the blue pool, making people feel that everything was beautiful. Just when Moqi was enjoying the joy of diving, a strong man swam above the water, unfortunately the strong man who was treading water failed to see Moqi at the bottom of the water, and stepped on Moqi's waist, and the next second, Moqi crawled at the bottom of the pool......

This story tells us that those who have an accident in the pool can swim, and we must not be too nervous.

The current slid over Mochi's body like a cool mountain breeze, and as the slime attached to the scales decreased, the scales on Mochi's body would take on a rainbow-like sheen.

In fact, not only Mochi, but all living fishmen are like this, revealing rainbow-like scales after washing the slime off their bodies. At first, Mochi also hated the layer of mucus attached to his body, but he gradually discovered that these disgusting slimes had a protective and bactericidal effect, like many seemingly superfluous things in human society, which often played an important role in buffering and protecting.

The skin under Mochi's scales is keenly aware of changes in the flow of water, and different objects will produce different changes in the flow of water. Whether it was a swaying broad-leaved seaweed or a wild fish feeding near the seabed stood in the way, and once Mochi was familiar with the currents, he could easily tell the difference.

This wonderful perception is like an extra pair of eyes.

Through this wonderful perception, Mochi was sensitive to the anomalies in the sea, and the changes in the currents were too regular to feel the swimming of the fish at all.

Diving to the bottom of the sea, Mochi found that there were no small colorful fish between the reefs, no snapper, no saury, no gobies, only gray corals and anemones clinging to the rocks at the bottom of the sea. Moqi explored the surrounding sand bed again, and the sea sand was also clean, and the common marine animals such as shrimp, crabs, sea cucumbers, and starfish were not seen.

Finally saw a conch, and when Mo Qi picked it up, it was empty.

The entire seabed is like a dead graveyard.

It's so abnormal.

Mochi didn't feel anything unusual about the seawater, no strange smell, no special color, and no sudden burst of some kind of algae. The aquatic weeds also grow normally – the leaves of the aquatic weeds swaying slowly like grapes, the green of the seaweed clinging to the rocks, and the soft red seaweeds growing so tall and large that it feels like walking through the red woods......

The growth of the plants on the bottom of the sea is also normal, and Mochi does not see anything abnormal.

So what went wrong?

Mooch decided to go deeper into the ocean.

After swimming for about half an hour, Moch saw a fault in the ocean floor, where the seabed broke off along a line to form a bottomless abyss. After passing through this huge sea cliff, you enter a wider and darker sea.

Upon reaching the vicinity of the fault, Mochi spotted a small silver fish with a fusiform body. The fish swam in a strange way, and as soon as it reached the seabed, it turned back, as if there was an invisible glass there. Of course, this alone does not tell the story.

Fish are inherently neurotic animals that like to make a U-turn faster when they have nothing to do. To see if there was a problem, Mochi needed to observe for a while. Fish are known to have a poor memory, and after the first U-turn, the fish quickly turns back a second time and a third time...... And every time you turn around, it's in the same place.

Why is there such an unusual behavior? Just as Mochi was thinking.

An even larger fish appeared—a shark with a gray back and sides and a white belly. The shark spotted the pike and quickly attacked, and the pike immediately swam in the direction of the shallow water. But it didn't swim far before the pike turned around in the same position, and this time it crashed directly into the shark's mouth full of sharp teeth.

The shark shook its body and swallowed the small pike fish in a few bites. It lingered near the seabed for a moment, and for a moment Moch could sense that the sharks had spotted Moch, the killers of the ocean who could locate their prey by relying on magnetic fields.

Moqi checked its level as a skeleton, meaning that it was too high above Moqi's level to see its exact level.

Mochi was about to flee the place before the other party could be identified, but Mochi found that the shark was also blocked by the non-existent wall. Tempted by food and repelled by that non-existent wall, the ferocious shark finally chose to leave.

After seeing the shark completely leave, Mo Qi breathed a sigh of relief, "No wonder the Broken Fin Mud Fish Man doesn't go hunting in deeper waters." A random shark is a character they can't deal with. ”

Mochi swam boldly to the edge of the seabed, not daring to swim too fast to avoid crashing into an invisible wall, and groped his way with his hands as he went...... But in the end, he found that his caution was superfluous, and that there was no barrier at all in the area that the pike-shaped fish and sharks did not dare to pass through.

"That's weird...... Obviously, I saw that those fish did not dare to cross this line. ”

Afraid that he would misremember the location, Moch swam around the larger area again, but still didn't hit any walls.

"There are no physical walls. How can you explain the strange behavior of those fish? Is it salinity, water temperature, light? That's impossible, the two fish swim on the seabed, there is no difference in depth, and there is no difference in light. I swam around a lot just now, and I didn't feel any difference between the water temperature and the salinity. ”

Realizing that his thinking had gone wrong, Mochi began to think about it from a different perspective: "This phenomenon is impossible on Earth, but it does happen in this place. So what's the biggest difference between Earth and Azeroth? What are the factors that can cause this phenomenon that is difficult for science to explain? ”

At this point in the analysis, the answer is already coming out.

That's magic.