"It's finally here." Chen Yin looked at the closed door, "How do you open this......

"Knock knock."

Chen Yin stepped forward and knocked.

Half a day passed, and there was no movement at the iron gate.

"Knock knock!"

He used a little more force, but the iron door still didn't move.

It stands to reason that such an important place should be guarded, otherwise wouldn't it be a joke to set such a high barrier to entry?

Just when Chen Yin was standing in front of the door at a loss, there was suddenly a sound of footsteps from behind him.

"Who?" Chen Yin looked back strangely.

A young girl in a long white dress and short silver hair walked out of the corner.

"You ......" Before Chen Yin could ask, the girl had already walked past him, took out a metal sign and shook it in front of the iron door, with a "rumbling" sound of steel, the closed iron door slowly opened in front of the girl.

The girl disappeared through the iron door in a flash.

Chen Yin was stunned for a moment, and while the door was not closed, he hurriedly ran two steps and wanted to sneak in. But before he could approach the gate, the statues on both sides of the iron gate suddenly moved! Two heavy spears crossed in front of Chen Yin, blocking his way.

"Please show your ID."

The statue made a dull sound.

"Yes, I have ......" Chen Yin quickly took out the administrator badge.

The statue was silent for a moment, and slowly returned to its place.

The iron door "rumbled" behind Chen Yin, and with the sound of metal crashing, the heavy iron door was completely closed, keeping out the sunlight and blue sky.

"Huh......" Chen Yin took a deep breath and walked in along the dark corridor.

"Smack."

With a soft sound, soft white lights lit up at both ends of the passage, startling him.

"Some kind of sensor light? It's a bit of a dissonance in this medieval context. ”

Chen Yin's voice echoed in the passage, gradually turning into a strange sound.

There was a faint scent in the air, which seemed to be left by the girl in white who had come in front of him.

The lights are dim and the fragrance is absent.

In this deep passage, you have the illusion of traveling back in time.

Finally, the iron gate appeared in front of me again, and this time, it was no longer a left-right opening type, but a gate that opened up and down, much like the fire door used in shopping malls.

Shaking the iron card in his hand again, the heavy gate slowly opened upward, and a majestic giant hall gradually emerged from behind the gate......

As far as the eye can see, there is a huge circular space the size of half a football field, and two rows of tall bookshelves on the left and right are connected to the far opposite, and the large volume of countless hardcover wooden covers is neatly stacked on the bookshelf.

An unidentified machine embedded in front of the bookshelf like a ladder is slowly moving along the tracks, leaving a faint purple smoke in its wake.

Strangely, the gas neither flew away nor spread, sticking around the bookshelf like a ball of jelly.

Chen Yin curiously touched the gas with his hand, only to feel that his fingers seemed to be stretched into another medium, not like water, but there was a temperature difference, slightly cooler than air.

The most striking thing about this strange machine is the stone platform in the middle of the hall, on which rises something like a lecture table.

When I walked up to the high platform, I found that there was a thick book on the table, and on the simple wooden cover, a few gilded words were written in an unknown alphabet language. Although Chen Yin didn't know him, he was surprised to find that the true visual effect could actually be marked - the title of the book means "table of contents".

Previously, when in the Orc Heights, the True Vision effect was powerless against the Orc language. After that time, Chen Yin thought that the true vision effect could not translate other languages, but he didn't expect to give him a surprise here.

Flipping open the heavy cover, the words inside are still the same as those on the cover, all of which are subtitles with unknown meanings.

“…… History...... Religion...... Culture...... Technology...... Occult ......"

According to the handwriting on the catalog, Chen Yin looked for it the same way.

The heavy catalogue was the size of a dining table, and each page required a lot of movement, and the font on the page was so small that Chen Yin had to bend down to see it clearly.

After a while, Chen Yin's waist began to sore, and his arms became heavy.

"Did you just see that?" Chen Yin got up and moved.

Suddenly, he realized a problem.

Where is the girl who came in before him?

Although this hall is very large, the whole space is flat, and Chen Yin can take everything around him into his eyes when he stands on the high platform.

"Strange."

Chen Yin stepped down from the podium and walked around the hall, but he didn't see anything strange around, so he had to return to the central platform again and continue to flip through the catalog.

It can be seen that most of the books stored here belong to ideas, bright spots, or have their own characteristics, as long as you look at these tomes, the civilization, development, past, and future of the whole world seem to be able to find some clues in them.

However, there is no knowledge here that Chen Yin needs.

Not only is there no key news such as demon summoning, god cards, and divine power crystals that Chen Yin wants to know, but even the most ordinary ring bearers and card-related literature are not seen at all! Even in historical documents, it is difficult to see the figures of the vow-bearers.

Originally, when Chen Yin first entered the Tower of Knowledge, he still had a strong curiosity about the unique card culture in this world, how the Ring Bearer appeared, etc., but now it was like a basin of cold water poured on his head.

Why aren't there any records of the ring-bearers and cards?

"No, the question itself is an answer......"

Did the Church of Light sift through the books here? Or did the Church of Light ban the books in question?

But whatever the attitude of the Church of Light, it is certain that they do not want to let people know about the vows.

"But in any case, there are still a few clues...... Chen Yin tapped on the line "history" with his index finger.

It's history.

No matter how much they are hidden, the vow-bearer has tremendous power, and this power will inevitably participate in the operation of history, and by examining the blank parts of history, it will be possible to find out where it has been deleted and where it has been changed.

After delineating the modern history of the Mogot Empire in the catalog, Chen Yin moved the tome to a high platform and sat on the ground to look at it.

“…… War...... War ......"

History, in front of Chen Yin, regressed rapidly, and the picture scroll of the heart-pounding war slowly unfolded, bringing him back to the era when iron and fire were intertwined......

In 973 Mogoth AD, after the end of the Battle of the Blackwater River, the triumphant return of the imperial god of war, Ivan Pound, and the territory of the Mogoth Empire expanded again and slowly stabilized.

……

In 947 Mogoth AD, Ivan Pound won the first battle, and the Mogot Empire embarked on a path of expansion.

……

In the year 193 of the Mogoth calendar, Lauren Mogot, Mogoth I died.

In the 84th year of Mogoth AD, Lauren Mogot decreed that the Holy Light Church should always be observed as the state religion, and the jurisdiction of the Supreme Court of the Holy Light was transferred to the Holy Light Church in Mogot.

In the 11th year of the Mogoth calendar, the Millennium War ended, and Lauren Mogot succeeded to the throne.

And then it's gone!?

11 years ago in the Mogoth calendar, it was a blank space??