Half a month later, Hong Tu's black-clothed clone came out of retreat in the practice room, and during this time, Hong Tu used the harvest of exterminating creatures from another world three times to refine a lot of treasures for the people on the Three Realms Mountain. Because Hong Tu's black-clothed clone was preparing to enter the demon realm for an adventure, Hong Tu's black-clothed clone had also made a lot of preparations. Because the cultivation of demons in the demon realm requires magic power, there must be a very strong magic power in the demon realm.

But Hong Tu is an immortal cultivator, although Hong Tu can change the breath on his body into the same breath as the demon. However, the essence of Hong Tu is still an immortal cultivator, so Hong Tu's cultivation must consume spirit stones and spiritual energy, and it is impossible to absorb the magic power in the demon world for cultivation. As for whether there are aura and spirit stones in the demon realm, the current Hong Tu himself does not know, so Hong Tu must make some preparations before traveling.

Tens of thousands of spirit rune maps were prepared alone, and a lot of the spirit stone maps necessary for cultivation were taken from the Five Elements Cave Heaven, and several spirit weapon maps used in the battle were also refined. However, after all, Hong Tu is only a cultivator in the god transformation period, and if he wants to refine a spiritual weapon with a machine spirit, Hong Tu can't do it without a large number of special materials. One of the purposes for Hong Tu to enter the Demon Realm is to find materials for refining spirit treasures, because there is a Jedi Thunder Source in the Demon Realm, which is a place of endless thunder and lightning for thousands of years, so Hong Tu estimates that there must be relevant materials for Hong Tu to refine spirit treasures in the Source of Thunder.

The second is that Hong Tu wants to find spirit stones in the demon world, after all, there are many more powerful demons in the demon world than the immortal cultivators on the earth, which means that the energy level of the demon world is much higher than that of the earth, so there may be cultivation resources required by cultivators in other systems in the demon world. Even if Hong Tu couldn't find a spirit stone in the demon realm, as long as he found the materials for refining the spirit treasure, it would be a huge gain for Hong Tu.

In the past half a month, Hong Tu has never felt the warning of the Heavenly Dao, which means that there may not be a space barrier connecting to another world on the earth in a short period of time. Although there were three spatial barriers that were broken this time, it was also an accident that these spatial barriers were broken, as long as the spatial barriers connecting the earth were broken again, all the immortal cultivators who had cultivated above the Jindan stage on the Three Realms Mountain would definitely be able to feel the warning of the Heavenly Dao. In addition, there are still three demon immortals guarding the Three Realms Mountain, so Hong Tu doesn't have to worry, after his black-clothed clone leaves the earth, the spatial barrier will be broken again.

After greeting everyone on the Three Realms Mountain, Hong Tu's black-clothed clone went directly out of the Three Realms Mountain and headed for the Amazon jungle. Because Hong Tu's deity is still on the Three Realms Mountain, the people on the Three Realms Mountain don't think it's a big deal, and Hong Tu's deity is not only cultivating every day, but also guiding everyone on the Three Realms Mountain in their confusion in cultivation. Hong Ye and Hong Mingliang also spent most of their time cultivating on the Three Realms Mountain, and they rarely went down the mountain to visit Hanzhou City, after all, each of them gained a large amount of Heavenly Dao Qi Luck during these three extermination of other world creatures, so it took a while to precipitate and digest these Heavenly Dao Qi Luck.

In the Amazon jungle, Hong Tu's black-clothed clone has entered the huge formation arranged by Wolf Three, because Hong Tu has the jade talisman refined by Wolf Three in his hand, so Hong Tu was not hindered in the formation arranged by Wolf Three, Hong Tu walked directly to the core of the formation, and then Hong Tu's figure disappeared into this huge formation.

At the moment when Hong Tu disappeared, another figure appeared outside the formation in the Amazon jungle, and this figure was very familiar to everyone on the Three Realms Mountain. Hong Tu entered the demon realm this time and did not take anyone to follow him, but Hong Tu did not expect that when he entered the demon realm, Wolf San actually followed behind Hong Tu in person, and Wolf San never told Hong Tu that he would follow Hong Tu into the demon world.

When Hong Tu's figure appeared in the demon realm, the wolf three were originally hidden behind Hong Tu, but now he suddenly revoked the concealment spell, and the wolf three standing in the formation seemed to be waiting for something. Because Wolf San didn't want Hong Tu to know, in order to protect the safety of Hong Tu's black-clothed clone this time, it quietly followed behind Hong Tu, and after Hong Tu entered the demon realm for a period of time, Wolf San's figure also disappeared from the formation, this is because Wolf San also entered the demon realm.

The reason why Wolf San hid from Hong Tu this time, and followed behind Hong Tu to ensure the safety of Hong Tu's black-clothed clone, was completely the result of the discussion between Wolf San and Snake Er. Xiong Da, one of the three demon immortals, was seriously injured by the punishment of Heaven last time because he guided Hong Mingliang to lay a good foundation for cultivation, so that the current Xiong Da serious injury has not healed, but it does not affect Xiong Da's current cultivation, after all, more than ten years have passed, and Xiong Da's injury has recovered a lot.

There are Xiong Da and Snake II on the earth, and even if creatures from other worlds enter the earth, there is no need to worry that the creatures of the other world will cause great damage on the earth. After all, the creatures of the other world who can enter the earth through the space barrier cannot be cultivated beyond the immortal stage, and these creatures of the other world will also be suppressed by the heavenly dao on the earth, and the strength of the creatures of these other worlds on the earth will be suppressed very powerfully, with the combat power of the two demon immortals, Xiong Da and Snake Er, they are completely not afraid of any creatures that enter the earth with the other world.

Hong Tu, who had passed through the spatial barrier, only felt a wave of vertigo, and his figure appeared in a huge cave. However, Hong Tu, who had just passed through the space barrier, observed the environment around him, and in front of him was an open space of more than twenty square meters, surrounded by dark stones. Obviously, Hong Tu has entered the demon world, this should be the whirlwind mountain that the demon captain Babata said, Hong Tu immediately changed his body shape and breath, and a dwarf demon with a destructive aura appeared in the place originally occupied by Hong Tu, this purple dwarf demon is Hong Tu used a transformation spell to disguise himself like this.

According to the memory of Purple Dwarf Demon Captain Fili, this cave is in the mine of Whirlwind Mountain, and Hong Tu only needs to open the passage of the original mine to successfully leave this mine. As for the perennial whirlwind on Whirlwind Mountain, it is not much danger to Hong Tu in the Transformation Period, and Hong Tu can easily leave Whirlwind Mountain if he leaves this mine.

In the cave of Whirlwind Mountain, Hong Tu rested for a while, because Hong Tu, who had passed through the spatial barrier, had not yet fully adapted to the rules in this demon realm. Although the Demon Realm is not like the Earth, the Heavenly Dao here is not very repulsive to outsiders, nor will it guide the powerful demons in the Demon Realm to hunt Hong Tu, an outsider, but the Heavenly Dao rules in the Demon Realm are a little different from the Heavenly Dao rules on the Earth after all, so Hong Tu will inevitably have some discomfort when he first enters the Demon Realm.

After resting for a while, a purple short sword appeared in Hong Tu's hand, and this short sword was the only spirit weapon in Hong Tu's hand that had a machine spirit, that is, the spirit weapon short sword that Hong Tu had obtained from Peach Blossom Mountain. The spirit weapon short sword, which was only about an inch long, kept getting bigger in Hong Tu's hands, until it became a giant sword about one meter long, and this spirit weapon flying sword stopped growing. The spirit weapon flying sword is in Hong Tu's hand, and the sword body is constantly flashing with purple thunder and lightning, this short sword looks very sharp, because the cold light on the edge of the short sword leaks out, ordinary people can see that this short sword is a sharp weapon.

Hong Tu held this huge spirit weapon flying sword, and cut it on the rock in the cave with a knife, when the spirit weapon flying sword collided with the rock, it was not as Hong Tu imagined, the rock in the mine was not very hard, Hong Tu's spirit weapon flying sword was like cutting tofu, and the rock layer was easily cut. According to the memory of Demon Captain Fili, the rock here is the companion ore of obsidian, a very hard stone, and in the past, Fili watched other demons mine, using a special shovel made in the demon world, and could only cut a small gap in such rocks, and they were very slow to dig obsidian.

But Hong Tu's spirit weapon flying sword cut through this rock so easily, which Hong Tu didn't expect, but for Hong Tu, the spirit weapon flying sword in his hand can easily cut through the hard rock layer in the demon world, which shows that in the demon world, Hong Tu's spirit weapon flying sword is a rare weapon, even in the city where Filip is located, their city lord Baba Tower may not have such a sharp weapon, at least it is impossible for the demon with the combat strength of the Yuan Infant Stage to have such a treasure in his hands.

Since he had discovered that the spirit weapon flying sword could easily cut through the rock, Hong Tu waved the spirit weapon flying sword in his hand and immediately used the spirit weapon flying sword to dig up the rock layer of the mine that was originally filled by Filip. Because most of the places in this mine have been blocked, so if Hong Tu wants to dig this mine again, it will take at least half a day, and this is still Hong Tu's use of the spirit weapon flying sword to speed up the progress of cutting the rock, you must know that the demon captain Fei Li spent half a month blocking this mine.

In this mine, Hong Tu kept wielding the spirit weapon flying sword, and the falling rocks were carried by Hong Tu to his rear with spells. And the spatial barrier behind Hongtu has already been arranged in a formation now, and it is difficult for the demons who are mining and working as overseers on Whirlwind Mountain to find the spatial barrier in this mine. Hongtu continued to dig the rocks, and the rock layers in the mine were dug up little by little, and Hongtu moved forward step by step.

It's just that Hong Tu didn't notice that when he kept digging the rock layer, there was a slight spatial fluctuation in the formation behind him.