Wei Wuji brought two helpers to the lagoon's shore. With the Water Spider in his mouth, he packed all the items he needed under the water and signaled the girl and Chen Xiaohua to sit under the tree and wait for him to come up.

The girl had been with Wei Wuji for a long time, so she was naturally worried for him. However, Wei Wuji was no longer distracted. He quickly took off his clothes and jumped into the lagoon with only a pair of fish-skin shorts on him.

Ever since he had met with danger as a child, Wei Wuji had never gone into deep water again. The moment he entered the lagoon, he immediately realized that he had been too careless before.

His body seemed to have lost control of itself. After a brief, random struggle, he coughed up a mouthful of water, which actually calmed him down. The feeling of calming down when you didn't want to die gradually calmed him down.

As Wuji swam, he observed the situation in the water. Gradually, he reached the bottom of the water and saw a lot of seaweed collected by the Great Sage for Yao Yun. He also picked some and put them into his diving bag.

At this moment, Wuji suddenly felt a ripple from the sea in front of him. Something seemed to have stirred up a lot of sand at the bottom of the water. Before he could react further, a small shark suddenly rushed out of the faint yellow seawater and almost bumped into his face.

Wuji jumped in fright. He scolded himself for being nervous and cowardly. It was just a shark that was less than half a meter long and would not cause any harm to people.

When the sediment in the water settled, Wuji immediately understood what had just happened to scare the shark so badly that he found an octopus lurking at the bottom of the water.

However, this octopus wasn't too big, it wasn't big enough to kill a human in its teens. Judging from the size of the octopus, it should be the food that the Great Sage would often catch to make the curry octopus.

Octopus is a unique animal. They are different from all other animals, not only have high IQ, but they also have conceptual intelligence. All of their life skills and skills do not come from their parents' teachings, but from their own thinking and practice after birth. Because of this, octopus are a kind of animals with a lot of personality. They are not obsessed with the same method of hunting. Instead, they think about which method to use to hunt food based on their advantages, the size of their prey and the surrounding environment. The octopus that had just failed was probably a trick of some whim. It had switched to an unfamiliar hunting method, and the result was that the young shark had luckily escaped.

As he gradually got used to the water's environment, he was no longer as nervous as he was before. He had discovered two groups of caves, and from the looks of it, this was a waterway that connected the outer seas of the island. Although some small fishes could barely pass through these holes, the larger fishes were harder to pass through.

Following this route, he finally found a few bigger holes. It seemed like this was the third channel that connected to the outer sea. These holes were big enough for the small sharks to freely enter and exit. More importantly, outside one of the biggest holes, Wei Wuji had discovered a corpse of a shark that had been bitten off to the point where only its head remained. He cautiously approached the head and carefully examined it. He discovered that there were a few wounds caused by the suction cups of the octopus. A group of different colored small fish were fighting over the flesh that was on top of the body cavity.

This should be it. Wei Wuji carried the searchlight and went into the cave.

The space inside twisted and twisted, sometimes extending upwards and sometimes twisting downwards. The path inside was also either narrow and could only accommodate one's body, or spacious enough to pass through a large ship. The surrounding rock walls were strangely shaped. In this dark environment, the light from the searchlights made it seem as though there were many demons and ghosts hiding here.

Strangely, at this point, Wei Wuji no longer felt any fear. He carefully scanned every nook and cranny with the searchlight, afraid that he would miss any clues.

Finally, something caught his attention on the wall below him.

He swam for a distance and shone the searchlight in that direction. It turned out to be a lump of something emerging from the mud beneath the rock. It gave off a faint, yellowish glow.

He could finally see clearly that they were octopus tentacles. They were using the light from the tentacles to lure their prey closer to him and then launching another surprise attack when they were caught off guard.

Based on the exposed portion, Wei Wuji speculated on the size of this octopus. He felt that this size did not appear to be the culprit behind the Great Sage's death. Since he was born on the island, his swimming skill was excellent. If the Great Sage wanted to drag him underwater to drown and bring him back to the lair to enjoy, then this killer should be a rare giant octopus after all. However, this octopus in front of him was not small, but it was still a very common type of octopus.

However, Wei Wuji decided that he would go and capture this octopus to see what was going on. At the very least, it would be good to bring it back for drinking.

Just as he was about to dive down to catch the octopus, he suddenly saw a shiny object reflecting the light of a searchlight not far away. He quickly recognized it; it was the cobalt-chrome diving knife that Chen Sha gave to the Great Sage! If it appeared here, then it meant that maybe the Great Sage was nearby, then this octopus.

Wuji did not dare to act rashly. He stepped into the water and kept a safe distance from the octopus. His mind was thinking about how to lure it out to see what was going on. At this moment, a big fish passed by him to help him.

Although it was still quite a distance from the ankle, in an instant, the nearby sand and sand seemed to have been blown apart by an explosive force, splattering in all directions. A huge object flashed, tightly wrapping that large fish, and then it retreated back to its nest with lightning speed. If it wasn't for the sand floating in the water, it would be like nothing had happened at all. The fish would have been magically transformed into nothing.

Even though that octopus's speed was extremely fast, Wei Wuji could still see its face. Those glowing limbs were not its fault, they were only its appendages. Its real form was incomparably huge, and looked like a few giant pythons wrapped together in the forest.

Wei Wuji had never seen such a huge octopus. Such a size of its limbs proved just how big its body was! That huge fish that weighed more than ten kilograms was just a snack for the Great Sage. No wonder the Great Sage was killed by it when he was still so good at swimming. A creature like the octopus could use the suction pads on its wrists and legs to move objects that were several times heavier than itself. It was said that some species could even reach twenty times that weight, so it was much easier for the octopus to take away the Great Sage than for an adult to take away a watermelon.

Wei Wuji's body was trembling. It was not because of his fear of this sea monster, but from anger.

Originally, everyone thought that the Great Sage had been attacked by an octopus, causing him to drown, but it was just an accident that residents living by the water's edge often encountered. It was normal for fishermen's children to drown in the water. However, when he thought about how the Great Sage had been hunted by such a terrifying monster and dragged him into his lair alive, and how he had used his beak shaped, sharp, horny jaw to nibble on the Great Sage's body, although the Great Sage had most likely suffocated to death by the sea water, Wei Wuji was still unable to contain his anger.

I will definitely capture you alive!

Ashley looked anxiously at her watch. Her heart felt as if it were being pulled by a hand. This feeling made her anxious and restless, but what could she do? If Wei Wuji was in danger, the only person who could help would be Yao Yun. But now, he was half disabled and couldn't even go into the water to help.

On the surface, Yao Ling was smoking a pipe with Chen Changsheng and chatting with him. However, he was secretly worried for Wuji. After all, he had not been in the water for a long time, so he could only choose to believe that he could return safely. If it was him, he would have really met that octopus that had killed the Great Sage. He might have lost his mind and rushed over to fight it out, but he should have come back to report this, right? Everyone will think of a way to kill it.

After finishing the last coconut juice, Ashley could no longer sit still. She threw down the coconut shell and stood up to wait by the lagoon. At that moment, Wei Wuji returned with his little girl and Chen Xiaohua.

Seeing that he could return safely, they all inwardly let out a breath of relief. Yao Ling struggled to pull out a cigar with one hand and threw it at him. "How is it, fourth elder. You've worked hard. Have you obtained anything?"

Wei Wuji sat down in his chair. The girl brought him a big bowl of water to rinse his mouth. Then, she brought him some coconuts to drink to replenish his strength.

Wuji told everyone about his underwater encounter and his intention to capture it alive.

No one expected that there would be such a huge sea monster hidden under the tranquil lagoon. Yao Ling frowned and said, "Although we don't know what kind of monster it is, an octopus of this size isn't easy to deal with. It even uses light as bait!" According to the book, "Nanny Lou", written in the Book of the Thousand-hand Taroni, most fish that were bioluminescent were poisonous. Moreover, octopuses of this size had astonishing strength. This was not easy to kill, even if they were to organize all the fishermen on the island to dive down, they would be courting death. Fourth, in my opinion, you should take the Dragon Catcher Crossbow down and shoot a few arrows at it. The poison on it can even kill a whale, so don't take the risk. "

Ashley also chimed in, "That's right, although you all are descendants of the besieged camp, but you can't really treat yourself as some demon seer, can you? Third brother is right, go down and shoot it, and then drag the body back. "

"Third Brother, on the way back, I've thought of a way, but I don't know if it's time. This octopus probably didn't live here for a long time. I guessed that it was chasing shark-like prey in the sea off the island, following the prey into the lagoon. He built a temporary lair here. Maybe one day when he got tired of living or when he ran out of food, he would leave, but then I found another thing there. " He took a small fish out of his diving bag and threw it on the table. "Do you know him?"

The fish was about a foot long. Its appearance was ordinary and didn't have anything special about it. Even Yao Yun couldn't see anything wrong with the fish.

"Don't keep us in suspense, tell us quickly. What happened to the fish?"

Wei Wuji shook the dead fish and said to everyone: "This fish is called the Jiu Jiu [1] fish. They are very weak and can't protect their own eggs, so they like to lay their eggs next to other powerful aquatic organisms. The most magical thing is that they can change the appearance of their own eggs and make them resemble the eggs of those selected as bodyguards. Octopus, on the other hand, was very careful with its eggs. They would always be close to the eggs, so I guessed that the big octopus might have been tricked by the kookaburra and wouldn't leave the cave in the lagoon for a while. "As long as it doesn't run, I can find a way to catch it and get it ashore. Firstly, we can prove our judgement, and secondly, we can get Mae to kill it herself and take revenge for the Great Sage."

Chen Sha smacked the table and praised, "Damn it, it's high! So high! Master Four, how are you going to catch it? Can we help? "

Wei Wuji smiled: "I will have to trouble everyone then. I'm going to set a trap, but it will take a long time for one person. I need everyone, including the natives on the island, to help me gather some materials."