1600

**Chapter 1600: The Four Levels of Runes**

Both spells can ignore space. Lin

As long as it is locked, it will be attacked.

Originally, it was difficult for the soul to lock onto the evil spirit in the room, but with the mark of the Bone Hell, the obstacles of the rubble disappeared.

Once locked by the soul, Lin Moyu raised his realm to the God Sovereign level and used the God-Slaying Sword.

To be safe, he also used Corpse Explosion.

With a dual approach, the evil spirit was instantly killed.

The evil spirit turned back into formless energy, continuing to wander in the ancient battlefield.

Perhaps one day it will form a new evil spirit again, but whether it will be so lucky to be endowed with wisdom again is uncertain.

Now that the evil spirit is dead, the next thing to do is figure out how to reopen that entrance.

The existence of the rubble is unsolvable; such a strong attack just now.

Except for the evil spirit being killed, everything else in the room, including the inscribed runes and the rune blade, remained intact.

So Lin Moyu wouldn't bother racking his brains on how to get in.

Even if he broke his head thinking, he couldn't get in.

If he really wanted to get in, it wasn't impossible; perhaps he could try summoning a big shot from the Other Shore Realm.

In fact, he didn't need to go in himself; just having the Undead Lich go in was enough.

It might take some effort, but so what.

The Undead Lich flew into the room, its small body came to the rune blade.

Using the Undead Lich's vision, Lin Moyu observed the runes on the rune blade.

The most important thing on the rune blade is the runes; to open the entrance, the most important thing is also the runes.

The Undead Lich stretched out its chubby fingers, constantly flipping the runes, allowing Lin Moyu to see clearly.

Then it picked up the rune blade and flew around the room, looking at the runes on the ground.

Comparing and matching, Lin Moyu quickly had an answer.

"So that's how it is. It looks difficult, but it's actually very simple."

The runes on the rune blade correspond one-to-one with the runes in the center of the room's floor.

After carefully observing the rune blade, Lin Moyu found that the runes on the rune blade were not static.

They flowed slowly, like very slow-moving water, changing bit by bit.

This change occurs roughly every ten seconds, moving a hair's breadth each time.

Although the distance is very short, over time, the runes completely change.

The runes at the tip of the rune blade had long since become something else.

To open the entrance, the runes at the tip of the rune blade must correspond to the runes on the floor of the room.

Once understood, it becomes a simple task.

The Undead Lich held the rune blade, waited for the runes on the rune blade to change again, found the right position, and stabbed directly.

The solid ground broke open like tofu, without any resistance.

The runes on the rune blade and the runes on the ground connected and glowed simultaneously.

Like a key opening a lock, a dark entrance appeared on the ground.

Putting the rune blade aside, the Undead Lich happily flew in.

The power of the runes flowed, forming an energy channel, guiding the Undead Lich without needing to search for direction.

Soon, the Undead Lich entered another space.

In this space, there was only one rune.

A huge, extremely complex rune.

The rune was no longer complete, with many missing parts, clearly damaged in the great battle.

Judging from the traces, only one-third of the rune remained.

Even this one-third was still functioning, performing some functions.

"Sure enough, it's the Soul Fire Rune."

Just a glance was enough to determine that it was the same as the Soul Fire Rune in the Four Star Domain competition. To be precise, the Soul Fire Rune in the Four Star Domain competition was a replica of this one.

But there was no soul fire here, only the rune.

Obviously, the soul fire was added by Ancestor Xu himself.

The rune was too severely damaged to be fully restored.

Ancestor Xu was able to restore part of its function by adding his own understanding and the soul fire, which was quite remarkable.

The runes here were generally related to the soul.

Their greatest function was to endow warriors with wisdom.

The main function of the ancient battlefield's rune array was to create warriors, which, though not real, were indistinguishable from real warriors.

Then, combined with the rune in front of him, it endowed the warriors with wisdom, giving the warriors created by the rune array stronger combat power.

The rune array, combined with this special rune, was perfect.

Using the Undead Lich's vision, Lin Moyu carefully observed the rune.

This was an extremely complex composite rune, composed of hundreds or thousands of runes.

It did not form a rune array; it was simply a combination of runes.

Compared to a rune array, such a combination of runes was more complex, more profound, and represented a truly advanced application of runes.

In Lin Moyu's understanding, the mastery of runes can be divided into four levels.

The first level is mastering all runes and being able to draw individual runes.

The second level is combining runes into a rune array, linking different runes together, and even performing simple combinations of some runes.

The third level is merging runes to form an extremely complex rune. With a complex rune, one can achieve the effect of a rune array.

The Soul Fire Rune is at this level, merging a large number of runes together to achieve an effect similar to a rune array, even more powerful than a rune array.

Achieving this is much more difficult than constructing a rune array, requiring a deeper understanding of runes.

Lin Moyu has only touched the second level so far.

As for the fourth level, it is even more miraculous.

Drawing a single rune can have the effect of an entire rune array or a merged rune.

The ancient runes in the secret realm are like this. They appear to be a single, not very complex rune, but contain countless functions, far surpassing a rune array.

Even if the rune collapses, leaving only a fragment, it can still produce various terrifying effects.

At this level, the key is no longer the rune itself but the spirit of the one who draws it.

The form is no longer important.

Lin Moyu even speculates that in ancient times, powerful rune masters could casually draw a stroke, creating a terrifying rune capable of destroying the world.

This is his understanding of the four levels of runes.

As for whether there is a fifth level, there is.

That is the ultimate existence of runes in the big world.

A rune that contains all the principles, laws, and rules of the big world. This level is far beyond his current reach.

Even the fourth level is a distant goal.

Lin Moyu is very pragmatic; he is now focused on memorizing the Soul Fire Rune.

Fortunately, the central part of the Soul Fire Rune was not severely damaged, which is why the entire rune can still function. It took him a day to finally memorize this incomplete rune.

Although he cannot understand it now, he can use it in the future.

After memorizing the rune, the Undead Lich began to observe the surroundings.

This space was very special, seemingly not in the real world.

After observing for a while, Lin Moyu had a clear understanding.

The space where the Soul Fire Rune is located should be an independent space created by the ancient battlefield's rune array.

"If this space has not collapsed, it means that the ancient battlefield's rune array still exists."

"The rune array of the ancient battlefield is still maintaining this independent space."

Lin Moyu had a thought; he realized that he might have another way to enter the core of the ancient battlefield.