After returning from the Abyss and Hell, Gavin has been staying on the top 21st floor of the Tower of Eternal Life, facing the massive portals and positioning them one by one. Pen ~ fun ~ pavilion www.biquge.info

These portals lead to various places in the starry sky of the universe.

Most of them are no longer valid, as these portals are located in the area ruled by the Arcane Empire. After the Battle of Extermination, everything in this area has changed, even the stars used to locate have been destroyed, and the portal is naturally unable to teleport.

There are also a small number of portals that lead to the endless starry sky beyond the astral plane.

These portals are constantly self-correcting, changing the position of the portals according to the position of the stars.

Those portals that cross the starry sky must rely on the position of tens or even hundreds of thousands of stars to locate them, because under knowledge and truth, the stars are the closest to immortal existence.

The location of each portal teleportation is recorded in the Tower of Eternal Life. Many teleportation sites contain very rare and valuable materials, such as star fragments, star cores, etc.

These portals and portal markers are very, very valuable treasures, and they are also a big hole card that Desdir left to Gavin to rebuild the floating city.

There is no guarantee that any floating city will never be destroyed or even fall, so when those top mages build the floating city, they will locate the precious materials they find when traveling in the endless starry sky, and leave spell signs for later use.

Not only did Desdir have these spell signs, but of course the Lord of the Night also had them.

Gavin spent a lot of soul energy to obtain the corresponding knowledge and memories from the Hades Palace.

During this time, he had already passed through these portals to the starry sky locations recorded by Desdil, and obtained a lot of materials.

It's a pity that 10,000 years have passed, and the top materials in some places have been taken away by others, which is far from enough.

Now, Gavin is debugging the portal, repositioning, slowly correcting the coordinates of the starry sky left by the Lord of the Eternal Night, and then deducing it little by little.

He is deducing the changes in the movement and position of the stars over the past 10,000 years.

It was a lot of work, and it eventually took Gavin a month to finally correct the first star coordinates, where he got a fragment of the star.

The next correction is much faster, because practice makes perfect, and the second starry sky road marker only took half a month to complete the correction.

The third one week.

The fourth took only three days.

That's it.

Each subsequent correction takes about three days, and there is a limit to the speed.

Gavin believed that even if it was Desdir and the Lord of the Eternal Night, they would not be faster in correcting the coordinates of the stars.

The Lord of the Eternal Night is obviously much more reliable than Destiel.

There is no way, the Lord of the Eternal Night was originally the top alchemist at that time, and his demand for top-notch materials was far above that of Desdil. In order to build the even larger and more powerful "Seven Underworld City", the Eternal Night Hades consumed at least three times as many materials as the Tomb of the Immortals.

"Starry Sky Materials...... It's done. Gavin sighed.

It's good to have a legacy.

Without these starry sky coordinates left by the Eternal Night Hades and Destil, even if Gavin's spell casting ability was stronger than that of the Eternal Night Hades and Destil, it would take him hundreds of thousands of years to build a floating city of the same size.

Maybe one of these materials will have to be searched for tens or hundreds of years!

The starry sky is too big, but these materials are rare. It's really not easy to get together.

"There's one last ingredient missing: the Iron of the Underworld." Gavin frowned.

During the Arcane Empire, mages and the underworld had a very close relationship. According to records, in that unprecedented Armageddon, the underworld was on the side of the Arcane Empire.

Also on the side of the Arcane Empire, there is also the Four Elemental Realm.

In fact, at that time, the comprehensive strength of the Arcane Empire was not weaker than that of the Alliance of the Gods. Whether it is the underworld or the four elemental realms, they all possess extremely terrifying powers. Some ancient gods of death and elemental gods are all powerful beings.

What exactly happened in that war, no one knows. History is written by the victors, and the truth has long been covered up, and only those powerful beings who survived that war, such as some gods with medium or even strong divine power, know the truth of the war to destroy the law.

All in all, in the War of Extermination, the underworld was devastated, shattered by the gods, and then sealed away, forever isolated from the main material plane.

The original duties of the underworld, those of the god of death, were divided among the gods.

It stands to reason that the strength of the gods is so strong that there are more than ten powerful gods. The underworld that they joined forces to seal, no one should be able to cross it, and no one should be able to absorb the power of the underworld.

However, Admiral Dalin did.

He was able to absorb the power of the underworld just by coincidentally obtaining the Book of the Underworld, the Undead Dominator, a low-level underworld walker, which made Gavin wonder if there had been an astonishing change in the underworld, an unknown change.

The 30th floor of the Tower of Eternal Life.

In the era of the Arcane Empire, every legendary mage who set foot in the realm of souls was inextricably linked to the underworld, and many of them had been to the underworld.

Desdir is undoubtedly a master of the realm of souls. Therefore, in the Tower of Eternal Life, there is a floor built specifically for the underworld.

This floor is called the "Altar of the Underworld".

The Altar of the Underworld, allowing Desdir to directly invoke the power of the underworld. No way, he is not an underworld walker, nor is he an underworld reaper, and it is not easy to mobilize the power of the underworld.

In addition, the Altar of the Underworld is also an extremely complex dimensional teleportation circle, which can be directly teleported to the Underworld.

Gavin stood on the altar and studied and observed, studied, and analyzed.

Although the underworld is open to the mages of the Arcane Empire, it is not as easy to enter it as the Four Elemental Realm.

Except for a very small number of mages who have made an agreement with the gods of the underworld, few people can bypass the gods of the underworld and directly invoke the power of the underworld, or freely enter and exit the underworld.

The Lord of the Eternal Night can, because he is a special underworld walker unique in the entire underworld, and he directly signs a contract with the underworld itself, bypassing the gods of the underworld.

Destir can also do it, because he has studied the underworld in depth, and because he built the altar of the underworld.

The Iron of the Underworld needed to build this tomb of eternal life was obtained by him when he went to the Underworld himself.

Now, after 10,000 years, this altar of the underworld has finally been reopened.

In Gavin's hands, the Book of the Underworld and the Undead Dominator were reduced to ashes, and the power of the underworld released allowed Gavin to use the power of the altar of the underworld to locate the coordinates of the underworld and open a passage to the underworld.

"Underworld, I'm coming." Gavin chuckled and vanished.