"Therefore, when you dive 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 the dive, and you stay submerged for a while, you may not be able to float.
The depth out of the water is an extremely dangerous situation!”
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 had no reaction at all. 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 people who are hypoxic."
In response, Mr. Obama closed his eyes slightly, sighed and said this, seeming to confirm that their thoughts were reasonable, but then he explained their thoughts in more depth:
“However, please think about it carefully. Each diver can only carry an oxygen tank with the amount of 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 at once——
"After all, when people are panicked, their breathing will become 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 totally 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. 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 at the dock for a little too long. After Mr. Obama roughly explained the key points of diving, Toyama and Haha had already boarded the boat, facing Hattori Heiji who had not yet boarded the boat.
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!"
"Having confidence is a good thing, but this kind of thing is not necessarily possible!"
Seeing Hattori Heiji's confident expression, Koshimizu 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 did not make a clear statement, but only slightly agreed.
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?"
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. The legendary "Giant Rock" has three "giants" near the island.
So, 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 in the area where they are going to dive to check, which happens to be on the east side of the sea.
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 water 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 sea area 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 suspected 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 only underwater ruins here 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 to this, Yuesui 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 has any impact... Anyway, let's see the conditions of the three 'Giant Rocks' first. After all, we still can't understand what the legend mentions about the 'three giants uniting into one'.
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, people in 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 composed of.
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 blocked 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 moving 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 he encountered such a large stone rolling toward him on the seabed, Hattori Heiji looked startled and tried to pull Toyama and Ha, who had not noticed the situation behind him, away from him.
However, actions under water are not like those on land. When the water has reached a certain depth, the obvious water pressure directly affects Hattori Heiji's actions, making his movements seem to be slowed down a lot. Although he was caught in time
He grabbed the hands of Yuan Shan and Ye, but at this moment, the large stone rolling down also hit the two of them.
For a moment, the two people submerged under the water seemed to be pushed downward by the rolling stones. After a while, the two people completely touched the stone wall of the underwater ruins that was so close.
But it was precisely because the stone wall blocked the way back that the two of them stopped -
"Okay, it hurts!"
However, when Hattori Heiji reacted to what he had just encountered almost instantly, his ears heard Toyama Kazuha's painful cry that he couldn't help but make under the water——
I saw that she seemed to have almost bitten the breathing tube in her mouth, and blisters were bubbling rapidly around her mouth, trying to scream. The culprit of all this, the falling stone, was actually there at this moment.
Pressing on Yuan Shan and Ye's feet, she couldn't move.
"He Ye!"
Suddenly, seeing Toyama and Ye being in danger, Hattori Heiji also wanted to shout anxiously, but due to the fact that he had to bite his breathing tube to breathe underwater, Hattori Heiji could only try his best to say something that was barely audible.
Clear voice——
"Are you OK!"
As he spoke, Hattori Heiji hurriedly thought of a way to gain a firm foothold on the seabed, and then used all his strength to move the stone that was pressing on Kazuya's feet away from Kazuya's feet——
"No, I'm stuck!"
However, despite all his strength under the water, Hattori Heiji was unable to move the stone at all.
Anxiously, Hattori Heiji saw that he couldn't do anything with all his strength, so he took a closer look at Kazuha's injuries, and realized that after the stone collided with the stone wall of the underwater ruins, due to the irregular shapes on their surfaces, one of them
There were irregular gaps, and Heye's feet were caught by this small gap.
However, this gap is extremely small. If the rocks are not moved, there is no way to get He Ye out of danger——
"what to do?"
Anxiously, Hattori Heiji couldn't help but take a big breath of oxygen as his heart rate increased.
But immediately, Hattori Heiji remembered what Mr. Obama said when he was on the dock before. If you are too panicked at this time, the consumption of oxygen will...
"He Ye!"
For a moment, Hattori Heiji, who was trying his best to calm down, looked at Toyama Kazuha, who was in panic because his feet were pressed by a stone.
Then, Hattori Heiji noticed that the oxygen content displayed by the barometer on Wazuha's oxygen bottle was almost gone!
This sudden encounter made Yuan Shan and Ye's breathing worsen due to panic from just now. The oxygen in her oxygen tank was almost insufficient——
"hateful!"
Feeling that his heartbeat was gradually accelerating, Hattori Heiji felt an unprecedented sense of urgency...