The moment he saw that guy's bones turned red, Liu Zhi thought a lot, most of them are the evolution direction of the skeleton soldiers, and a small part is what this guy is all about.

And the skull seemed to understand something after his head turned red, and he glanced at Ryuji, turned his head and ran towards the depths of the cave.

As soon as he ran like this, Liu Zhi was also a little stunned, could it be that there is a cave behind this cave?

Thinking of this, Ryuji chased after him, only to find that the red skull's head had turned into a ball of flame and left from the top of the cave.

The way he left was like the black smoke from a volcano eruption, and you could tell that he was used to it.

This situation made Liu Zhi a little speechless, he thought that this guy would challenge him, but he didn't expect to disappear as soon as he turned his head.

However, Ryuji didn't come here to pick up the enemy, he came here to find his own treasure, so after the red skull ran away, Ryuji didn't pay attention to it.

He paid more attention to the cave frescoes.

Since the red skull had run away, the temperature in the cave had subsided.

Ryuji glanced at the mural here, and his eyes were intrigued, and he noticed that it was a huge tree painted here, which was supposed to be the world tree of Norse mythology, Yuktra Hill.

The tree is divided into three layers and nine kingdoms, and the paintings on them are quite simple, but each country has detailed drawings, and according to mythological stories, different things are drawn.

Liuji even saw the palace belonging to Odin and Valhalla on top of Yggdrasil.

But what Liu Zhi cares about most is not this, but the hidden lines under the mural in front of him.

As you can see, these lines are a bit interesting and seem to represent some running routes.

Ryuji guessed that this was about the Vikings' cultivation route, and if someone practiced according to this route, it was likely that they would keep strengthening their body, and their strength would increase, and at the same time, their physique would become stronger, and it would be easy to recover from being cut by someone.

Liu Zhi glanced at it, and he didn't have too many thoughts, although this kind of cultivation method is also useful for the undead, but the real use is not great.

The undead under Liu Zhi's hands are already powerful enough, and they don't have to worry about anything if they are cut, they will recover by themselves, and he doesn't need to let his undead learn this kind of thing.

If this is the treasure he is looking for, Ryuji feels that the harvest this time is not very good.

Just as Ryuji was about to leave, he suddenly saw something in the mouth of the black dragon under the Yuktrasil tree.

As for the things in Norse mythology, Ryuji believed that it must be as direct as the Norsemen, so they directly told the Vikings that there were benefits after dying in battle.

It won't be like some sects in the East, who can't understand the exercises they write, and it's not like Western alchemy, where they don't know the terminology and don't know what materials to take.

There's no black dragon drawn there, saying what part of the body this thing is.

Ryuji saw that there was something wrong with the black dragon, so there was really a problem, and Ryuji noticed that although it was painted, the fangs of the black dragon shone with a pale blue light.

If someone else might have judged, it might represent the poison of the black dragon.

After all, in the story, this black dragon is Nidhogg, who has been eating the World Tree Yctrasil.

This dragon has names like destruction, destruction, despair, calamity, etc., and no one does not think that he is not poisonous.

But Ryuji felt that there was something wrong with this, and he seemed to see the despair on this picture, and the black dragon Nidhogg seemed to be different from the legend.

Ryuji thought for a moment, and reached out to touch the fangs that flashed with blue light.

Sure enough, with the injection of Ryuji's mana, Nidhogg's painting case slowly began to writhe.

"I see."

Just by feeling it, Ryuji understood in his heart how this thing worked, and in the legend, Nidhogg controlled the souls of the dead who were thrown to the Hervagmirr Spring after death for their evil deeds.

When Ragnarok arrives, it will flap its wings and fly across the battlefield laden with corpses.

So as long as you inject the power of the soul into Nidhogg's body, you can open it.

As for the number of souls who want to open this mural, it is a bit much, so most necromancers will not use their souls to open such useless places even if they find out about this situation.

But Liuzhi is different, his soul extraction has reached a certain level, as long as he wants the soul, he can grab it outside.

Ryuji didn't randomly pump his soul, and after feeling that this desperate black dragon Nidhogg needed a soul, Ryuji made a move to the battle handle outside, and some soul fragments floated in.

Ryuji sent all these souls into Nidhogg's body, and slowly the desperate black dragon flew up and left the place he had drawn.

And at this time, Liu Zhi saw that behind the mural, there was a black box.

The box was not wooden at a glance, and he reached over to take it, and he was taken aback by the heavy touch.

After a closer look, Liu Zhi found that this was actually a box made of lead, and it could be seen that there should be something sealed inside.

Liu Zhi thought for a while, and finally took out the box.

After all, most of the treasures given by the nautical charts are acceptable to him, and there will be no problems.

Liu Zhi thought for a while, and directly opened the box in front of him, and the moment he opened the box, Liu Zhi saw a blue light in front of him.

He saw a cube glowing blue, a translucent thing.

Ryuji just glanced at it, and a look of surprise flashed in his eyes, he didn't believe that this thing could appear in this game.

If this was true, it would have been taken away a long time ago.

"Cosmic Rubik's Cube, Infinity Stones? A snap of the fingers wiped out half of the world's people? ”

Ryuji didn't believe that his luck would be so good, and after he picked up the blue cube, he looked at the message that popped out with a ding, and Ryuji finally breathed a sigh of relief.

Luckily not.

That's right, it's not a cosmic Rubik's cube, it's just a fragment of Godhead that looks like cosmic magic.

[Space Godhead Fragment: Space-like Godhead Fragment dyed blue by someone and cut into a cube-shaped shape, has been hidden here for a certain number of years, although this is a Godhead fragment, but the energy stored in it can only be teleported across the universe three times. 】

[Note: Please don't mess around in some places, and some of the tricks and feet you do in some games are likely to cause changes in the whole world.] 】