O'Hara is known as the Island of History, the Island of Knowledge, and has an endless collection of books, but the former name is more famous, and the scholars on the island are also historians.

At first, Ziggy also wondered, why did Ota go to O'Hara? O'Hara is at most deciphering ancient texts, how can Ota's inheritance be reliable?

However, it now appears that they did not go to O'Hara for historical knowledge, but for ...... Astronomical knowledge!

Because of the "weird refraction", the three islands seen on the moon are not the actual geographical location.

Not to mention that Biruka is a moving island, and its position must be within three points and the phenomenon of "sun-sum" is also present to be able to indicate the position.

In general, this is an "astronomical problem", and if you have enough astronomical knowledge, you should be able to calculate it.

Although the day and the day usually occur every one or two years, Roger obviously couldn't wait for the next one, and even if he did, he couldn't see the "lamp of Sandora", so he could only determine the final position through astronomical calculations......

On the sea, O'Hara is known as the "Devil's Island", known only to scholars who conduct anti-world government research.

Only a few understand that they were destroyed by the world government that feared the exposure of the "vanishing 100 years" because they were in search of history.

Now, however, Ziggy began to wonder if it was really because of "history......

It was the fool Spandain who directly gave the order to slay the demons, and the order he received was also to forbid O'Hara from contacting history again.

Exploring the 100 years of disappearance is naturally one of the original sins in the eyes of the world government.

However, it is as if in the original work, Spandam, CP9 and even CP0 have always felt that Robin is wanted for the "Hades", and they don't know that what the real world government fears is her ability to interpret the text of history......

Could it be that O'Hara's destruction for studying history is also a superficial reason?

In fact, what the world government feared more was that Roger had used the astronomical knowledge there to calculate some kind of result?

After all, the O'Hara incident also happened less than a year after Roger's execution......

In this way, what Ziggy needs is clearer—O'Hara's astronomical data!

In fact, the angles that can be seen on the moon, as well as the overlap between the cycle of the "sun sum" and the cycle of "Biruka appearing in the three-point reflection", require more astronomical knowledge to be able to calculate.

I don't know if this part of knowledge is also in Robin's head......

Ziggy can only hope that Robin is an "all-round scholar", after all, after the Demon Slaying Order, Robin's memory is the last O'Hara.

You don't even need to really remember it, as long as you've seen it before - after Ziggy becomes the "Dream Walker" in Sequence 5, you can try to awaken Robin's memory in your dreams.

But if you don't see it at all, then Ziggy can't do anything.

"Looks like we have to find O'Hara's survivors before we can ......," Ziggy snapped his fingers, and the dream vanished.

"Yawn...... It's not bad, you still have to take risks, don't look reluctant, I still want to trade with you. Yamato woke up yawning.

Ziegy rolled his eyes, he preferred someone to "spoil" him.

But Ziggy now even wonders if anyone knows exactly where Ralph Drew is—Biruka is on the move, and is it that the two coincide in the same position every time the "sun is in peace", or is Ralph Drew also moving, and Biruka is tracking it from half a blue star?

There are also a lot of crew members on Roger's ship, don't look at those old and unserious, meet the protagonist, ask today "Do you want me to tell you where Ralph Drew is", tomorrow he will hang his appetite "Ralph Drew?" Actually, it's in ......", but speaking of which, Ralphdrew's location has not been leaked at all!

"It's not just Nicole Robin...... After that, let Inuarashi and Cat Viper leave first, and I'll stay in Wano Country and try to contact someone! Ziggy said with a thoughtful look, but finally decided.

If it is determined that it is related to "astronomy" and the moon, Ziggy has other clues.

At first glance, "meteorology" seems to have nothing to do with astronomy, but it has a great relationship with "atmospheric refraction", and if it can be deciphered from this aspect, Ziggy can also be simulated closer to reality;

The second is to go directly to the moon - Roger has to use knowledge to deduce because he does not live enough, otherwise the phenomenon of "sun and" will occur every other year or so, go directly to the moon to see, as long as you find a way to locate the "no light" Biruca, this is the most royal way to decipher;

Three to ...... That's what Ziggy wanted to find later, the descendants of the Moonman, and unlike the Sky Islanders who had lost their civilization, they inherited the special features of the Moonmen, and probably knew some secret ...... Embers!

Ember is a descendant of the Luna tribe who was rescued from prison when Kaido was researched by the World Government, and was also used as material for research.

Once this people, who lived on the Red Earth, were called "gods" - and it was very likely that they came from the moon.

Now that it is understood that it may be necessary to look at it from the moon, it is always right for Ziggy to look for Ember first.

The only thing to consider is......

Ember is loyal to Kaido and may fight Ziggy directly!

Ziggy wasn't going to involve Yamato and the country of Wano either, and Ember really didn't want to reveal anything, so he just ran away.

The first two clues, the line of Visalia on the Island of Weather, may not be useful, but it is relatively easy to find, which is equivalent to a clue that is placed in vain, and there is no reason not to take a look.

And going to the moon is certainly useful, and Zigger, unlike Roger, is not in such a hurry and can wait for days and cycles.

Judging from Mrs. Shi's persuasion of Ota to go to Ralph Drew with Roger, "finding Ralph Drew" and "the prophecy of destroying the world government after 800 years" should not be completed at the same time, the former should be earlier than the latter, and even as a directional precursor.

Therefore, the most optimistic estimate is that the results can be seen every day and cycle, and the most pessimistic estimate will definitely not be 800 years so long, the only thing that needs to be a headache is how to go to the moon, and ...... How Biruka should shine to be seen!

This is also a normal way to solve the mystery of Ralphdrew, and there is no need to take shortcuts and do not worry about doing useless work.

Ziggy is going to try Ember first, and then go to Saville, if he can't do it, he will go to Nicole Robin, if he can't find it or Robin doesn't know astronomy, then honestly find a way to go to the moon - in the original work, Anilu can go to the moon, and Ziggy is not helpless......

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