From Saturn to Earth, which has also recently been 1.3 billion kilometers, it has been a long and boring journey. Virgil's fighter is equipped with a star stealth system, which can disguise the aircraft as a distant star, so as to merge with the stars and avoid detection. As a result, after leaving Saturn's rings, no one noticed Virgil's fighter again.

There are four major stealth systems in the world today, namely infrared stealth, radar stealth, visual stealth and star curtain stealth. There is only one fighter that fully equips all four systems, and that is the Olympus S0-102. It was with this aircraft that Morant was able to easily inflict heavy damage on the Combined Fleet. The DH-1 fighter piloted by Virgil is an old model developed 20 years ago, and it still uses a single reactor for energy, which is very common, but its performance has fallen behind. But it was precisely because of this that Virgil was able to easily find the operating manual of this fighter.

The two letters DH in the model number are the abbreviation of Dr. Houghton. The Star Curtain stealth system is his originality.

Virgil read many of Houghton's letters to his family and was impressed. These letters are written to her daughter Anna, once a week, or criticize, or inform, or suggest, or ask, and the writing is humorous and engaging. However, the letters came to an abrupt halt one week a decade ago, and Dr. Houghton and his daughter have not been heard from since. What really happened ten years ago? Virgil didn't understand.

The starry sky outside the cabin is almost unchanged and tires over time. Virgil put the fighter in autopilot mode and began to recall what he had seen and heard in the past few months.

In the conversation between Blake and others, he heard a word that came up many times - "Arctic Ocean assassination". Virgil knows very little about this assassination, he only knows that after this assassination, the kingdom of Aston, which lasted for more than 2,000 years, collapsed overnight, and the international coalition that was originally responsible for maintaining global order began to deteriorate day by day, and at the same time, a large number of high-level intellectuals disappeared completely overnight, and for ten years, no one was dead or dead, including Dr. Houghton.

What kind of assassination is this!

Virgil turned on the on-board personal computer and pulled up Horton's last letter home, trying to find a clue.

The letter to the family reads:

"My dear daughter Anna,

It's great to see you having so much fun at your 16th birthday party. As you get older, your horizons will become more and more open. You know, get out of your world, and there are many more wonders waiting for you to discover.

The unfortunate news is that Dad has a little problem with his job and may have to leave the Aleutian Principality for a while Ene11. But don't worry, it won't be for long. Nature 5。 You can go to the old place and spend some time.

Dim11。

Sorry I didn't have time to write too much.

Your dear Father

March 23, 2073 at 14 p.m. Haydn time"

The letter did not reach Anna in the end, but was posted on social platforms. But it wasn't long before Olympus wiped out the entire web of the letter. At that time, the G64 was still evenly matched with Olympus, so the letters that Virgil now sees are copied from the independent network of the G64.

The most confusing thing about this seemingly simple letter is the combination of those three letters and numbers – "Ene11", "Nature5", and "Dim11". Among them, Nature means "nature", and the other two have unclear meanings. But what does this have to do with the letter itself? Dr. Houghton, an accomplished aircraft engineer and a student in cryptography, adds to the mystery of the letters. Over the years, countless cryptography enthusiasts have tried to decipher the letter from different angles, but have failed. After a long time, the heat dropped, and no one paid attention.

The timing of the letter is also interesting, as it was sent at 14 p.m. Haydn time on March 23, 2073, exactly one hour before the assassination in the Arctic Ocean. Could it be that Dr. Horton was killed in the assassination and thus tried to convey the shocking conspiracy behind it at the last moment of his life?

However, the League of Nations later published a list of the dead, whose name was not included. Besides, the people who died in the assassination were all dignitaries from various countries, what did he do as an engineer? And most of the projects he developed were general-purpose projects, and never involved defense secrets. For example, the Star Curtain stealth system is the simplest of the four stealth systems, and almost the whole world knows its principle; Not to mention the DH-1 fighter, which can be produced in almost all countries. It is said that Horton is a humble person and never contradicts people, so it makes no sense to say that he was assassinated!

Dr. Houghton is presumably dead, but in reality, Virgil is not sure.

Virgil's mind was in a state of confusion as he looked up at the stars and pulled a compressed biscuit from the food box and threw it into his mouth. He was hungry and he hadn't eaten for sixteen hours.

As he chewed, he remembered what Colonel Wayne had said, "Dr. Houghton once adopted Blake and sponsored him to finish college." It was only in Virgil's impression that Blake seemed reluctant to mention it.

Virgil was almost certain that the Arctic Ocean assassination was Olympus's game, because after the assassination, the only beneficiary was Olympus. Although they never admit it, after reading so much information, Virgil has long seen through the hypocrisy of Olympus's top management.

Then it makes sense, Blake and Morant are notoriously bitter enemies, because Dr. Horton once helped Blake, so Morant held a grudge and killed Dr. Horton while assassinating a number of dignitaries. It sounds reasonable.

But there is a key problem with this interpretation, and that is time.

At the time of the assassination in the Southern Ocean, Blake had just returned from a mission in North Africa, and Morant had not yet taken the throne, so how could the two of them resent each other? Moreover, even a month after the assassination, Morant was still only a C-level personnel, and the top management was an A, and he had no ability or opportunity to cause such a huge tragedy. I'm afraid there is someone else behind the scenes.

Perhaps, he should find someone who witnessed it, and hear the whole thing for himself, and ask Blake definitely not to do it, according to his character, he must be fooling the past with something else. So, who else?

That's right, Marshal Pamish! He is said to have been there at the time, just as Blake and the others were looking for him. I must ask him for clarification.

So sleepy, Virgil didn't want to think anymore, he took one last look at Saturn, which was fading away, closed his eyes, and planned to sleep beautifully.

At this time, in Virgil's ears, the low cry sounded again: "Crusoe, duel with me!" Crusoe, duel with me! ”

This time, he wasn't dreaming!