It seems that he deliberately waited for Yueshui Nanatsuki to leave, and Xiao Wai took the initiative to say this.

"What?"

In this regard, Gao Yuan couldn't help but feel a little surprised and looked down at Xiao Ai, and asked in surprise-

After all, today, Xiao Ai and himself and Yue Shui Nanatsuki acted together throughout the whole process, why did he not have any special discoveries with Yue Shui Nanatsuki, but Xiao Wai did find out?

"Huh? Didn't you and the young lady notice? On this island, there are mudskippers. ”

Seeing Gao Yuan's puzzled expression, Xiao Ai seemed to be very proud and said.

"Mudskipper?"

Listening to this term, Gao Yuan knew the name of this fish, but it was even more unclear, and he didn't even know what this fish looked like, so it didn't even mean anything for the existence of this fish on the island—

"Mudskippers are found in the northwest Pacific Ocean, and in Japan they are found only in the south, so they are not a widespread fish."

Xiao Ai explained with a faint smile:

"Based on the geographical division of this fish, it is indirectly possible that the Japanese archipelago may have been connected to the mainland next door."

"This ......"

The corners of his eyes twitched, and when he heard Xiao Ai actually talking about this kind of thing, Gao Yuan couldn't help but helplessly hold his forehead and said:

"How many years ago? Does it have anything to do with what we're currently investigating? ”

"It was probably during the Ice Age."

Xiao Ai continued:

"At that time, some rivers flowed from the mainland to the Japanese archipelago, and it was probably at that time that mudskippers used the rivers to flow to the Japanese area."

"So what?"

Hearing this, he still couldn't understand the meaning of Xiao Lament's words at all, and Gao Yuan could only continue to ask.

In this regard, seeing that Gao Yuan hadn't been able to understand what he meant, Xiao Ai seemed to be even more meaningful, and the corners of his mouth were slightly upturned and said:

"Huh? You still don't understand? According to what you discussed earlier, you don't think the people of the island need enough manpower to build such an underwater ruin, right? But if you think about it another way, in the past, when the island was connected to the mainland, there may have been a large number of people visiting the island. ”

"The meaning of 伱......"

At this moment, speaking of this, Gao Yuan finally understood what Xiao Ai meant, but he still said with some shock:

"I think that the underwater ruins found on this island are really man-made! But...... That's too early, right? Prehistoric Civilization ......"

"It's not uncommon for prehistoric civilizations to build large-scale facilities?"

小機 says:

"And I'm just offering an idea."

"That's right."

Nodding slightly, Gao Yuan replied, feeling that the ideas provided by Xiao Ai were not impossible, so he thought about it and said:

"If the underwater ruins are really man-made structures, no matter how simple they are, then there should be space in them...... So, the treasure mentioned in the legend ......"

Speaking of this, Gao Yuan's thoughts were suddenly stunned, and then his expression began to be solemn:

"If you can really be sure that the ruins are real, then ...... Missing tourist, Hattori Heiji in distress ......"

At this moment, it was just a little conjecture, and this will begin to seriously consider some possibility-

Although the investigation of the underwater ruins and the identification of the missing tourist should have been two different things, if the underwater ruins were really man-made structures, perhaps the two incidents were actually related!

For example, on this island, there are people who are really sure that the underwater ruins are real, and have discovered the secrets of the underwater ruins, so in order to monopolize the legendary treasures, the people who almost found the truth about the underwater ruins are disposed of one by one, and there is an incident of tourists disappearing.

And if you think about it this way, it's more likely that Hattori Heiji's encounter today was not an accident!

At the beginning, the idea was to diverge, and I and others were here to investigate the underwater ruins, so the idea was to prove the authenticity of the underwater ruins, and in terms of rationality, based on Hattori's observation conclusions, I and the others felt that the ruins were very likely to be simple rocks.

But if some people were to assume that the ruins were real from the start, what would they think?

Thinking of this, Gao Yuan immediately set off and rushed towards Mr. Kohama's diving equipment rental shop on the edge of the dock-

There are some things that may be answered there.

So, seeing that Gao Yuan's attitude had changed so much in a short period of time, Xiao Ai nodded a little proudly, feeling that what he said just now seemed to have really helped Gao Yuan a lot.

As a result, Xiao Ai was a little proud, and also followed Gao Yuan's footsteps, and walked towards the diving shop on the island-

"Is Mr. Kohama there?"

And when Takato came to the front of the diving supplies shop and looked at the unlocked door, after pushing the door open, Takato looked at the hall inside the store, only the Miss Aragaki who had seen today was there, Takato asked the other party if Mr. Kohama was in the store.

In this regard, the Aragaki lady, who seemed to be tinkering with something on the table, heard that someone was coming to the store, and she didn't seem to want to move, and the Aragaki lady didn't even look back, so she said:

"It's too late today to lend diving equipment."

"No, I'm here to ask Mr. Kohama about something, not to rent diving equipment."

Seeing that the other party seemed to be busy, Gao Yuan didn't rush to urge, but he still seriously explained his intention to her, hoping to know the whereabouts of Mr. Xiaobin.

"Mr. Kohama is out, I don't know where he went."

And Miss Aragaki still didn't look up, so she responded.

"That's ......"

Knowing this situation, Gao Yuan couldn't help but be a little surprised, but looking at the young lady in front of him, thinking about the morning, he heard Tokitsu Junya say that the other party seemed to have been helping in the store as early as when there were many tourists on the island before, so he also tried and asked the other party a question:

"So since Mr. Kohama is not here...... Aragaki Lady, there's something I don't know you know. Aren't there three tourists missing on the island before? Have the three tourists ever come to rent diving equipment before? And in the process of diving, did you encounter any situations? ”

As he spoke, Takato came a little closer, came to Miss Aragaki's side, and asked in a friendly manner.

However, at this moment, after Gao Yuan got close to Miss Aragaki, he finally saw clearly what this Miss Aragaki who didn't even look back when she spoke-

"Model airplanes?"

Looking at the parts on the table, Gao Yuan recognized what they were at a glance.

Obviously, these parts are assembled and are models of aircraft, and it is clear that they are also real simulation models with power systems, which should be able to take off remotely.

So, seeing that the other party seemed to be fascinated by the assembly of model airplanes, Gao Yuan thought about whether to use this as a topic, so as to get close to the other party, a thought suddenly flashed through Gao Yuan's mind-

"When the gaze is above the giants, the three giants are united into one...... Could it be that the secret of the so-called 'Giant Rock' refers to ......"

(End of chapter)