Stay away from Conan

"Therefore, when diving underwater, the oxygen in the oxygen tank you are carrying is the only source of oxygen you can rely on. If you don't pay attention to the remaining oxygen amount during diving, and you stay underwater for a while, you may not be able to float. The depth out of the water is extremely dangerous!”

Mr. Obama gave this instruction very seriously, pointed to the pile of oxygen cylinders prepared on the ship, and added:

"You have to know that at this time, no matter how many oxygen tanks I have on board, I still won't be able to rescue you in time!"

In this regard, listening to Mr. Obama's narration, mainly among Tokizu Junya and the other three tourists who were listening, Tokizu Junya didn't have any reaction. He seemed to think that these were the most basic attempts and did not need to be explained. On the contrary, One of the other three tourists had some thoughts in response to Mr. Obama's remarks and couldn't help but ask:

"But... when that happens, you can use this to get air from your diving partners, right?"

Holding a breathing tube connected to an oxygen tank in his hand, the tourist asked this question.

"That's right."

Listening to what this tourist said, the other two tourists around him also nodded, as if they felt that what he said made sense.

However, after hearing their conversation, Hattori Heiji on the side couldn't help but shook his head helplessly, as if he was too naive about their ideas——

"Using a breathing tube, you can indeed lend air to someone who is hypoxic."

In response, Mr. Obama closed his eyes slightly, sighed and said this, seeming to confirm that their thoughts were reasonable, but then he gave a more in-depth explanation of their thoughts:

“However, please think about it carefully. Each diver can only carry an oxygen tank with enough oxygen for one person at a time. Your partner who dives with you will also consume oxygen!

“So, when you want to borrow oxygen from your companion because there is not enough oxygen, the amount of oxygen left by your companion who dives with you may not be any better than yours.

"Furthermore, when there is a lack of oxygen in the water, divers or divers usually fall into panic. At this time, if you give your oxygen to the other person, the other person may be nervous and suck up all your oxygen in one fell swoop——

"After all, when people are panicked, their breathing becomes very panicked!"

Sternly, Mr. Obama's tone became extremely serious, and he said with great disapproval of the idea of ​​borrowing oxygen from his companions when he was deprived of oxygen underwater:

"So if you think your diving buddies can just keep borrowing this from you, you're wrong."

After showing the breathing tube on the oxygen tank, Mr. Obama continued:

"If you really encountered such an emergency, would you risk your own life and give the other person the little oxygen you have left? Therefore, you must control and manage your own oxygen. This is the most important thing! Do you understand? !”

In this way, after listening to Mr. Obama's detailed explanation, the three tourists finally nodded sheepishly, and then realized that the ideas they and others had just been too naive.

So, Mr. Obama continued:

"In this case, it seems that you are all just beginners in diving. Please don't dive too deep this time. Once you feel uncomfortable, get back to the boat quickly. Don't force it!"

In this regard, the three tourists present had no choice but to nod in agreement——

"Well, that's very well said."

Listening to Mr. Obama's explanation to the three tourists, Hattori Heiji couldn't help but nodded and said with some approval——

"Hey! Heiji, what are you doing? The village chief and others are waiting to sail the boat!"

However, at this time, it seemed that they had been watching on the pier beside the ship for a little too long. After Mr. Obama roughly explained the main points of diving, Toyama and Ye had already boarded the ship, facing Hattori Heiji who had not yet boarded the ship.

Therefore, Hattori Heiji hurriedly responded:

"Ah, that's it. Come right away!"

With that said, Hattori Heiji waved his hands towards Takato and the others, and said with some pride:

"Then I'll go first. This time I may solve the puzzle before you do!"

"It's good to be confident, but it's not necessarily the case for this kind of thing!"

Seeing Hattori Heiji's confident expression, Koshimi Nanatsuki smiled unconvincingly. At the same time, he looked at Takato beside him and said to him:

"You think so, Mr. Akechi?"

"Um……"

In this regard, faced with such a situation, to be honest, Gao Yuan also understood that being able to go directly underwater to see the so-called undersea ruins would be of great help to this investigation. Therefore, he who could not dive might not be able to compare. Hattori Heiji discovered the clues faster, so Takato didn't make a clear statement, but just agreed slightly.

Immediately, when Gao Yuan saw that the village chief on the boat was putting away the anchor and preparing to set sail, he thought about his purpose. Gao Yuan walked near the village chief and asked him:

"By the way, Mr. Village Chief. I remember you said that there is a 'Giant Rock' in the east, west and south of this island. So in addition to the 'Giant Rock' on the east side here, there are also 'Giant Rocks' on the west and south sides. Are there any relics under the water where the rock is located?”

Somewhat concerned, Gao Yuan asked this question——

After all, according to the legend mentioned by the village chief yesterday, it is said that the "three giants" on the island guard the treasures of the ruins. There are three "giants" in the legendary "giants" near the island. Well, how many ruins are there on the seabed?

As of now, judging from what I talked to Hattori Heiji and the others last night, the area where the so-called undersea ruins are located on the island is exactly the area on the east side of the sea that they are planning to go diving to check. Near the water in the area where "Giant Rock" is located.

In other words, it is currently only known that there are suspected undersea ruins under the waters where the "Giant Rock" is located on the east side.

That being the case, what is the situation under the waters where the two "Giant Rocks" mentioned in the legend are located on the west and south sides?

If the so-called undersea ruins are really related to the "Giant Rocks" mentioned in the legend in the waters around this island, then it stands to reason that the waters near the "Giant Rocks" on the west and south sides, There should also be what appear to be underwater ruins.

However, based on what I have learned after landing on the island, the area suspected of containing underwater ruins seems to only exist under the waters on the east side where Hattori Heiji and the others are going to dive now. The west and south sides of the island were mentioned by the village chief yesterday. Before that legend, I didn't even know that there were similar rocks that were very high above the water in those two places on the sea.

Therefore, after thinking about it, Gao Yuan decided to ask the village chief to confirm this doubt first.

In this regard, after listening to Gao Yuan's inquiry, the village chief replied with certainty:

"No. The undersea ruins here only exist under the waters on the east side where we are planning to sail now. There are no strange places under the waters around the 'Giant Rock' on the west and south sides."

"That's it..."

Hearing the village chief's affirmative reply, Gao Yuan couldn't help but nodded, and did not ask any more questions. He just asked the village chief to drive the boat carefully, then turned and left the dock, heading towards the west side of the island. Go.

In response, Koshisui Nanatsuki and Xiao Ai naturally followed Gao Yuan's footsteps——

"Mr. Mingzhi, what do you think about the question you asked the village chief just now?"

After hearing the content of Gao Yuan's inquiry just now, Koshimizu Nanatsuki couldn't help but curiously asked about Gao Yuan while walking on the road.

Seeing this, Gao Yuan shook his head and just said:

"It's not clear whether it will have any impact... In short, let's see the conditions of the three 'Giant Rocks' first. After all, we still can't understand the point of 'three giants united into one' mentioned in the legend. What's the point? significance."

Hearing this, Koshimizu Nanatsuki also thought about what he heard yesterday, the legend about the undersea ruins and the "Giant Rock" mentioned by the village chief, and nodded thoughtfully, without asking any more questions. Just follow Gao Yuan and continue walking.

On the side, Xiao Ai looked at Gao Yuan and Koshimizu Nanatsuki, who were simply chatting about the incident. They were silent the whole time, just walking beside Gao Yuan...

…

On the other side, after taking the village chief's boat out to sea, it didn't take long for everyone to arrive near the waters where the underwater ruins were located.

Here, after the village chief docked the boat on the sea, the people on board wearing diving suits began to prepare to dive into the water.

Among them, since Hattori Heiji and Toyama Kazuha are different from the other four, they are not inexperienced beginners, and the purpose of this dive is to get closer to the area of ​​underwater ruins, so the two of them also Without waiting for the other four beginners, including Junya Tokizu, after arriving at the designated location, the two of them took the lead and started diving underwater together.

In this regard, since he had seen the two people's diving ability yesterday, Mr. Obama did not give any more instructions to the two people today. He just asked them to pay more attention to their safety. Emphasizing some precautions, Hattori Heiji and Toyama Kazuha were allowed to dive to the bottom of the sea——

“No matter how many times I see it, I still think it’s so spectacular!”

And soon, when Hattori Heiji and Toyama Kazuha dived underwater, the wide sea area did not cause any obstacles to the two people's diving process. The two people approached the area that seemed to be completely made of rocks. The underwater ruins area constitutes.

Seeing this, and just looking at the area that seemed to be surrounded by huge rocks from a distance, Hattori Heiji couldn't help but feel a little shocked in his heart——

"Is it really possible that such a structure is man-made?"

With such doubts, Hattori Heiji gestured towards Toyama Kazuha, expressing that he wanted to get closer to the underwater ruins and take a look.

In response to such a signal, Yuan Shan and Ye nodded, and without any objection, they continued to dive downwards.

After bypassing a seabed stone barrier, the underwater sunlight began to be somewhat obscured by the stone barrier, so in order to have a clearer view, Hattori Heiji and Toyama Kazuha opened the diving suits above their heads. The searchlight was going down a slope on the seabed, and the two of them were soon approaching the edge of the suspected undersea ruins on the bottom of the water.

However, before the two of them could get close to the underwater ruins, Hattori Heiji seemed to notice some movement. He turned around and saw a huge boulder that was also heading down the slope of the ocean floor. He and Toyama and Ye rolled down below——

"Ah! What is that!"

Suddenly, when they encountered such a large rock rolling towards them on the seabed, Hattori Heiji was startled and tried to pull Toyama Kazuha, who had not noticed the situation behind him, away.

However, the underwater movement is not like on land. When they have dived to a certain depth, the obvious water pressure directly affects Hattori Heiji's movement, which seems to slow down a lot. Although he pulled Toyama Kazuha's hand in time, the large rock that rolled down also hit the two of them at this time.

For a while, the two people who were underwater seemed to be pushed down by the rolling rocks. After a while, they completely touched the stone wall of the underwater ruins that were originally close at hand.

But because the stone wall blocked the way back, the two of them barely stopped - "It hurts, it hurts!" However, when Hattori Heiji reacted to what happened just now in an instant, he heard the painful cry of Toyama Kazuha underwater - she seemed to have almost lost her bite on the breathing tube in her mouth, and bubbles kept coming out of her mouth as she tried to wail. The culprit of all this, the falling stone, was actually pressing on Toyama Kazuha's feet, making her unable to move. "Kazuha!"

Suddenly, seeing Toyama Kazuha in danger, Hattori Heiji wanted to shout anxiously, but because he had to bite the breathing tube to breathe underwater, Hattori Heiji could only try his best to make such a barely audible sound--

"Are you okay!"

As he said, Hattori Heiji hurriedly tried to find a way to make himself stand firmly on the seabed, and then used his strength to move the stone that pressed Kazuha's feet away from Kazuha's feet--

"No, it's stuck!"

However, after using all his strength underwater, Hattori Heiji couldn't move the stone at all.

Anxiously, Hattori Heiji saw that he couldn't do anything, so he carefully observed Kazuha's injuries, and realized that after the stone collided with the stone wall of the underwater ruins, due to the irregular shapes of the two surfaces, there was an irregular gap between them, and Kazuha's feet were stuck in this small gap.

However, this gap is extremely small. If the stone is not moved, there is no way to get Kazuha out of danger——

"What should I do?"

Hurriedly, Hattori Heiji couldn't help but breathe in oxygen with a faster heart rate.

But immediately, Hattori Heiji remembered what Mr. Kohama said at the dock before. If you panic too much at this time, the consumption of oxygen will be——

"Kazuha!"

For a moment, Hattori Heiji tried his best to calm himself down and looked at Toyama Kazuha who was in a panic because her feet were crushed by the stone.

Then, Hattori Heiji noticed that the oxygen content shown on the barometer on Kazuha's oxygen cylinder was almost gone!

This sudden encounter made Toyama Kazuha's breathing heavier because of panic. The oxygen in her oxygen cylinder was almost insufficient——

"Damn it!"

Feeling his heartbeat gradually speeding up, Hattori Heiji felt an unprecedented sense of urgency...