After Li Xiaotian's strong mecha upgraded its wings, he tried to fly in the air, and felt that his speed and agility were much stronger than before.

After Li Xiaotian and the witch swordsman finished separating the blood-red eyeball gems, they began to fly towards the space-time rift, where they were stationed.

After a day of fighting, the Reaper Scythe of the Strongbred Mecha has also been strengthened, and it is the first time that it has been bladed.

Li Xiaotian and the witch swordsman returned to the station, looking at the magic array at the space-time rift still absorbing faint energy and improving themselves, and there were some small monster corpses scattered nearby, which should be the creatures that strayed into this area killed by the small defensive magic array during the time they left.

Li Xiaotian directly cleaned up the corpses of these small creatures, so as not to attract more creatures.

Then, the witch swordsman opened the entrance stone slab underground, and Li Xiaotian and the witch swordsman jumped into it one after another.

"I'm going to take a shower and rest. You're okay with some defensive magic arrays, and you're going to practice. Li Xiaotian said to the witch swordsman beside him.

The witch swordsman nodded.

Li Xiaotian returned to his stone room, took off his clothes and took a shower, and changed his clothes from the undead storage ring.

As soon as he used the undead storage ring, Li Xiaotian found that the undead storage ring that had begun to absorb the soul had become different from before, when Li Xiaotian's spiritual power passed through the undead storage ring, he could see a scale value, and now it was a green scale value.

"Chip, analyze the scale value of the undead storage ring." Li Xiaotian commanded the chip in his head.

Under Li Xiaotian's order, the chip began to quickly scan the undead storage ring.

"Ding Dong, congratulations to the host, now the scale value of the undead storage meson is enough for the host to use to open the space-time travel door twice. One time is to open the space-time travel door from the host's location, but the opening time is very short, and the host will pass through quickly.

Once at the beginning of the Plane Crossing Gate in the World of the Dead, teleporting back to the current host's location. The host stays in the world of the dead, but fortunately consumes some soul energy accordingly.

After calculation and analysis, the energy in the host's current undead storage ring is enough for the host to travel to the undead space, stay for an hour, and then travel back to its current location.

Tips, when the host uses the undead storage ring to open the entrance to the undead space, it must be in the current location, and do a good job of space-time coordinate imprint, otherwise the host will not be able to return to the current space-time. When the host is in the world of the dead and wants to open the space-time gate again to travel back, because there is no positioning space-time coordinates, he will be lost in the vast plane and space-time rift. ”

The voice of the chip sounded in Li Xiaotian's head, and after Li Xiaotian heard it, he immediately decided to go to the undead plane to take a look and see what was different there. Whether he can sign an agreement with the undead creatures as soon as possible, so that he can summon some undead thugs to help guard this space-time rift, is what Li Xiaotian urgently needs to solve now.

"Chip, set the space-time coordinate imprint, and use the room where I am now to conduct fixed-point analysis and save the space-time imprint parameters." Li Xiaotian commanded the chip in his head.

"The space-time coordinates are set, the spatial barrier is opened, and the compatibility mode between the spatial mark and the undead storage ring is turned on." The voice of the chip sounded in Li Xiaotian's head.

"Chip, use the soul energy stored to kill the big earthworm and open the portal of the undead space." Li Xiaotian commanded the chip in his head.

A small circular door soon opened, and on the opposite side was nothingness and nothing could be seen.

Li Xiaotian quickly passed into this portal, and when Li Xiaotian's body entered, the portal closed, as if there was no portal purely in this world.

At this moment, the witch swordsman who was building a magic defense array on the ground felt that there were fluctuations in the space energy and magic fluctuations in the place where she lived, and the witch swordsman sensed the direction of the magic fluctuations in detail, which was in the stone room where Li Xiaotian was.

Regarding this Li Xiaotian's ability and unknown, the witch swordsman directly ignored the magic fluctuations, thinking that it should be Li Xiaotian who took out some magic props or the fluctuations caused by the magic of the cultivation space system.

Li Xiaotian's body, after breaking through a long space corridor, saw another light gate appear in front of him, Li Xiaotian hurriedly rushed out.

The sound of the chip prompt sounded in Li Xiaotian's head, and in front of Li Xiaotian's left eye, a virtual countdown appeared that only he could see. A sixty-minute countdown.

"Within sixty minutes, the host will open the portal again and return to the netherworld space. The undead realm that the host has now reached, because the energy organization of the undead realm is completely different from the space where the host is located, and the host stays in the undead realm, all of which consume the soul energy in the undead storage ring.

When the soul energy in the undead storage ring is consumed, the host's soul will be directly consumed, and the host must not end this exploration of the undead world within an hour. The voice of the chip sounded in Li Xiaotian's head.

"Corresponding to the information obtained from traveling through future time and space, watching future diaries, analyzing and scanning the surrounding environment, making a virtual map, judging the location of the undead world where I am now and the powerful undead tribal creatures around me that may be defeated by me and sign an agreement." Li Xiaotian commanded the chip in his brain, and a huge virtual map soon appeared in front of Li Xiaotian.

Li Xiaotian looked at the undead world, the sky was gray, the ground was all hard stones, as far as the eye could see, there were no plants at all, the undead magic energy here was very sufficient, Li Xiaotian felt that if he used the undead magic here, it would be at least one top stronger than outside, while the other magic elements were very thin.

Li Xiaotian saw that there were some single whiteboard skeletons in the distance, moving indiscriminately and aimlessly, and behind him was a skull mountain, and there were many bones on the skull mountain.

Every few seconds, a tabula rasa skeleton would crawl out of Skull Mountain, and the tabula rasa skeleton with soul fire on its head would shake the ground a few times before starting to walk into the distance.

Li Xiaotian felt that this was a place for the manufacture of skeleton soldiers, but the skeleton soldiers here were too weak, they were all newborn skeleton soldiers, and they were not worth being summoned by Li Xiaotian at all.

Of course, these skeleton soldiers corresponded to Li Xiaotian, and there was no threat to Li Xiaotian, Li Xiaotian quickly followed the direction of the skeleton soldiers' movement, and there were two or three skeleton soldiers on the way who tried to attack Li Xiaotian, a strange creature.

But it was easily solved by Li Xiaotian as soon as he raised his hand.

"What the host is going out of now is the Yin Wind Valley of the Skull Canyon, because of the special environment in the Yin Wind Valley, there is a skeleton cemetery inside, there is only one exit, and the exit is more than thirty meters long, and from time to time the special Yin Wind energy of the undead world will be hung.

These Yin Wind energies will transform the bones of the newly-born skeletons, prompting them to undergo the first evolution of the tabula rasa skeleton, increase bone density, and stabilize the soul fire.

Not all new tabula rasa skeletons can pass through this Yin Wind Valley alive, only half of the tabula rasa skeletons will successfully pass through this Yin Wind Valley, and the other half of the tabula rasa skeletons, soul fire and bones, will be blown away by the Yin Wind Valley, and the body will fall on the way to the Yin Wind Valley, becoming the energy of the Yin Wind, and the body and soul will finally dissolve. The voice of the chip sounded in Li Xiaotian's head.

Then a big arrow appeared on Li Xiaotian's virtual map, Li Xiaotian looked in the direction of the arrow, twenty or thirty meters in front of him, there was a passage that could be two meters wide and very long, and in other directions, there were mountain wall stones blocking the pass, and he could only go out by taking this passage.

"Yin wind, promote the evolution of undead creatures, yes, some like survival of the fittest, chips, simulate and record the environmental requirements generated by this Yin Wind Valley, and see if you can artificially create one after you go out in the future.

If I pass through the Valley of the Winds, will my soul and physical bones be upgraded? Will the Breed Mech get upgraded? Li Xiaotian asked the chip in his brain.

The chip began to calculate quickly according to Li Xiaotian's inquiry.

"The bones and souls of the host's body have been strengthened after the mecha passes through the Yin Wind Valley, and it will be upgraded, but the upgrade energy is very weak, and this Yin Wind Valley upgrade is mainly used for the tabula rasa skeleton. The host's current strength is far superior to that of the tabula rasa skeleton, and the upgrade effect is not obvious. The chip replied to Li Xiaotian.

After Li Xiaotian heard this, he no longer observed this Yin Wind Valley, quickly controlled the movement of the strong breeding mecha, and walked towards the crack in the Yin Wind Valley.

After entering the Yin Wind Valley, a second before it started, before the body entered, there was no feeling, but after entering, he felt that the temperature around him dropped instantly, and the cooling from the soul made Li Xiaotian shudder.

Along the way, Li Xiaotian walked quickly in the passage of Yin Wind Valley, but from the direction of the surroundings, some strange winds blew on the strong breeding mecha, so that it had no effect, and every time the strong breeding mecha could be carried down.

Li Xiaotian saw through the scanning field of the chip that there were hundreds of whiteboard skeletons passing through this Yin Wind Valley, and the movement speed of these whiteboard skeletons in the Yin Wind Valley was very slow, and it took almost a few seconds to take a step.

And hit him, the weird yin wind that has no effect, if it hits these whiteboard skeletons, it will directly shake them, and the soul fire on the head, if it is small, may be blown out directly.

Li Xiaotian looked at it, and the soul fire in the brains of the tabula rasa skeleton was blown out, which meant that the tabula rasa skeleton was dead, and the bones would quickly scatter on the ground, and they would soon be corrupted by this Yin Wind Valley.

After successfully carrying the tabula rasa skeleton urged by the yin wind, Li Xiaotian found that the energy and stability of the tabula rasa skeleton soul fire that resisted the blow of the yin wind had been improved a little bit through chip scanning and analysis.

"It's really an environment for selecting the undead, even the lowest-level skeleton whiteboard undead, since birth, has faced challenges, those who can walk through the Valley of the Yin Wind will become stronger and live, start his life in the world of the undead, and those who can't go through the Valley of the Yin Wind will die directly. Without strength, you can't survive in the realm of the undead. Li Xiaotian sighed as he watched the whiteboard skeletons walk in the Yin Wind Valley.

Li Xiaotian quickly walked out of the Yin Wind Valley, and the blowing of these Yin Winds was really too slow for his increase as the chip said, and it was a complete waste of time here.

After Li Xiaotian walked out of the Yin Wind Valley, he moved quickly in the direction of a great undead warrior clan in the distance.

According to the diary after traveling through the future, the undead tribe in this direction has a semi-crystalline skeleton powerhouse, as well as twelve black and gold skeletons, plus some skeleton knights, warriors, mages, etc., with a skeleton group of tens of thousands of people.

Of course, this group of skeletons is not the most powerful in the entire undead world, and it can't even be on the power ranking list, but in the vicinity of Li Xiaotian's area, it can be regarded as the strongest.

What's more, the half-crystal skeleton is already a legendary-level powerhouse, and the leadership strength of their undead tribe is at the peak level of the half-crystal, Li Xiaotian According to the information recorded in the future diary, only a few places on this half-crystal skeleton are still dark golden bones, and the rest have evolved into crystals, and in a few decades, they will be able to evolve into crystal skeletons and become one of the powerhouses in the undead world, and the strength of the crystal skeleton should not be underestimated in the undead world.

Of course, the diary records the strength of the creatures of the undead realm about two years later, and it is still two years ago, this half-crystal skeleton has not become so strong, and there are many dark gold bones on its body.

Li Xiaotian was ready to find this undead tribe to sign a summoning agreement.

The higher the level of the undead, the higher the intelligence, and the intelligence of the half-crystal skeleton is not weaker than that of normal humans. According to the records in the future diary, Li Xiaotian learned that the leader of this tribe, the half-crystal skeleton, was still a female skeleton, but the skeleton didn't seem to be very different between men and women.

Li Xiaotian moved quickly, and after walking for forty minutes, he reached the territory of this female leader with a half-crystal skeleton.

Li Xiaotian could see that wandering skeleton soldiers appeared on the road from time to time, as well as skeleton knights, fortunately, the concealment skills of the strong breeding mecha, after Li Xiaotian activated, he was not discovered by these low-level skeleton soldiers.

Li Xiaotian was going to visit this half-crystal skeleton leader today, after all, his soul energy had not accumulated enough this time, so he couldn't sign any agreement at all, and the time was short. This time, I came mainly to find the specific location of this half-crystal skeleton, and I have already let the half-crystal skeleton know that there is a mage who is ready to sign a summoning agreement with their clan.

For powerful undead creatures, they are also eager to go to other worlds, and can plunder special soul and energy resources, flesh and blood, etc. After all, if you eat fish every day, if you eat it for decades, you will feel very delicious if you change it for individual creature meat to eat, or change it for some vegetables to eat, and the same is true for skeletons, in the undead world, you can only get the soul fire undead energy unique to the undead world, as well as some bone energy, and if you go to the other world, you will get special energy.

However, the Otherworld also represents risks and unknowns, and undead creatures generally live for a long time, and they don't want to die.

Li Xiaotian saw a small house made of black stones, and outside the house, there were five or six dark golden skeleton soldiers, holding their own skeleton weapons with dark gold bones.

Li Xiaotian tried to get closer, but these dark golden skeleton soldiers didn't notice his existence, which made Li Xiaotian feel a lot more relieved.

Li Xiaotian then approached cautiously, and saw a dark golden skeleton soldier, just opening the door, about to enter the stone room, Li Xiaotian carefully followed it and entered.

After entering the room, Li Xiaotian saw a crystal skeleton with a gray robe, sitting on a stone chair, carrying a huge bone bow and several bone arrows on her back.

I didn't expect this half-crystal skeleton to be a long-range. Li Xiaotian thought to himself.

"Your purpose!" The half-crystal skeleton archer sitting in the room suddenly got up in an instant, picked up the bow and arrow, and filled the bow, and the frozen energy of the undead began to gather on the bow and arrow, and with the flames, the bow and arrow of ice and fire mixed energy, facing the hidden position of Li Xiaotian.

Hearing the words of this tribal leader, the black-gold skeleton that came in was stunned for a moment, and also pulled out the weapon on his waist, a long-bone club.

Li Xiaotian knew that he had been discovered, so he simply canceled the concealment skill and appeared in the room.

The half-crystal skeleton looked at Li Xiaotian's strange appearance, as well as the special appearance of the strong breeding mecha.

Li Xiaotian also observed this half-crystal skeleton, according to the chip scan, she has now completed seventy-three percent of the crystallized bones, which is far worse than the nearly ninety-five percent crystallization of this skeleton two years later, after all, the later it is, the slower the crystallization speed is. It seems that in the past two years, this female skeleton shooter has also encountered or fought many major battles.

"You're not from the undead realm, you're an outsider?" The female skeleton shooter, the bones in her mouth gurgled and made a piercing voice to ask Li Xiaotian, the bone arrow in her hand did not go down, but still pointed at Li Xiaotian's head.

The sudden appearance of Li Xiaotian, a strange creature, made the female skeleton shooter feel threatened, and this special threat feeling was something that the female skeleton shooter had not appeared for decades.

"I don't belong to this undead world, I'm a mage from the outside world through some special abilities." Li Xiaotian calmly said to the undead female archer in front of him, not caring about the threat of her bone arrow.

"What do you mean?" The female skeleton shooter then asked.

"Contract and summoning, I need powerful undead to fight in my world." Li Xiaotian directly said what he meant.

"Do you have the strength and ability to provide summoned sacrifices, the stronger the undead, the more energy they summon, your current strength is at most comparable to me, if you only rely on your spiritual power and soul to provide sacrifices, once you fight, you will be abolished." The undead female archer said to Li Xiaotian.

"Don't worry about the sacrifice, I have a way to obtain the souls of other creatures, I will exchange the souls of creatures in my time and space with you, and pay you the energy summoned to help me fight according to the level and calculation.

And in the course of the battle, you can take away the soul energy of the creatures you killed. Li Xiaotian said.

Hearing Li Xiaotian's words, the undead female archer was a little tempted, after all, for hundreds of years, it was difficult to meet an alien mage who had the ability to come to the undead world and come here to negotiate a contract with her.

In the long years, when she was still a golden skeleton, the undead female archer was fortunate enough to be captured in the summoning connection channel that appeared in the sky above the undead world, and went to another world to participate in a city defense battle.

That time, it also allowed the undead female archer to get the souls of a large number of special creatures, and the delicious soul taste made the undead female archer unforgettable for decades afterward.

Of course, the undead female archer remembered that there were tens of thousands of skeletons that were summoned with her, but there were less than a thousand of them who came back alive, but fortunately, her ranged skeleton archer did not engage in melee combat, and almost all the melee skeletons died.

The undead female archer also relied on the huge soul energy she obtained during that summoning process to break through the black gold skull level and reach the half-crystal skull level.

Now this strange foreign mage who appeared in her territory seems to be even more weird, he can actually come to the undead world to negotiate and sign a contract, this kind of strong person is very special, the contracts they encounter on weekdays are all contracts that appear in the sky above the undead world, if the strength is enough, the contract can be established after capturing it.

"What's your name, Outsider Mage!" The undead female archer asked at Li Xiaotian.

"Li Xiaotian."

"What kind of battle do you need us to participate in. With your strength, you can't complete the battle, and you still need helpers, and it seems that the battle you need us to participate in is not easy. The undead female archer said.

"A continuous guard war, you need to guard for about a month, in this month, you will face a surprising number of creatures, the strength of the strong and the weak, the strongest should be about the same as you and me, but the number will not be much, most of them are weak and medium creatures, but the number is amazing.

If the contract is made, I will pay you a portion of your souls first, and I will take the rest of your souls from the biological clocks I have destroyed. Li Xiaotian said after thinking about it.

"A lot of creatures, or a month of fighting? Do you have any defensive castles or anything like that? The female skeleton shooter asked. After all, the defensive battle without the castle and the defensive battle on the ground are far from the same consumption.

"No, but I'm going to set up some defensive ladders like trenches, bunkers, etc. I'm going to guard something, and I'm going to guard it for a month so that no creature can destroy it. Li Xiaotian said.

"You said that there are a lot of enemies coming to attack, how many will there be?" The skeletal female shooter asked.

"It's a lot, you can understand that you went with your undead troops, and you kept fighting, and kept fighting for a month. Of course, I also have some magic arrays to assist you in the battle, and I have another person with similar strength to me who will assist in the battle, and the enemies whose strength reaches our level will be solved by me and that helper, what you need to do is to take the wrong command of you, and kill those small fish and shrimp weak. Li Xiaotian said.

"Fighting for a month, do you know how many people there are in my undead army, close to 100,000, that is, the strength is high, and there are also 10,000 undead warriors, you let 10,000 undead warriors fight for you, you think that it is to rely on the souls of the creatures you kill and the magic array to pay for the contract soul fee during the battle of 10,000 undead, but can you take it out to summon 10,000 undead in the past, or even me, a half-crystal undead in the past.

The amount of soul energy required is staggering, and what kind of force have you provoked, in your plane, it is amazing to continue fighting for a month! The undead female archer said in surprise.