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Following the marked location on the map, Reji immediately gathered the apostles and headed towards the underground of the Syndicate.
Although Reji's level had skyrocketed to 71, his principle of being cautious and careful remained unchanged. For this kind of unknown area, calling the apostles together was absolutely the safest choice.
The Sorcery Demon drew the magic formation, and under the effect of the "Earth Excavation Technique," a large area of the desert automatically parted to both sides, revealing a passage leading deep down for Reji and the others.
However, after going hundreds of meters underground, the Earth Excavation Technique stopped working, its effect becoming weaker and weaker. The reason was that in the deep soil layer ahead, a faint crystal-clear light permeated, seemingly blocking the spell.
There was no other way. If the spell didn't work and the effect deteriorated, they could only rely on brute force.
The Great Demon Hektor immediately took on the role of a demonic flesh excavator. The strongest combat power of the demon race was not just for show. Under the Hektor's immense strength, a new passage was quickly opened up, assisting Reji to continue downward.
Just like that, they might have gone down a full kilometer or more. The crystal-clear light permeating the soil became brighter and brighter, symbolizing that they were very close to their destination.
The dense magical fluctuations made it a bit difficult for the few apostles to adapt at first.
Finally, with Hektor's last claw, he broke through the tunnel, and below the tunnel was the hollow space beneath the desert that Reji had seen on the map.
This space, as far as the eye could see, was filled with the same radiance that had permeated the sand and soil earlier.
The source of the radiance was those dream-like, glowing crystals that had condensed in the underground cave like stone stalactites.
It was these translucent crystals that made the magic power here incomparably pure, as if it contained no impurities at all.
It was precisely because of the concentration of magic power here, which was so viscous and free of any impurities, that it formed a blocking network, making it difficult to release the Earth Excavation Technique earlier.
Actually, the Sorcery Demon and the Wisdom Demon had vaguely guessed about such crystals before.
And now, when the true form of the crystals was revealed, both of their faces showed an incomparable look of pleasant surprise.
The fact that it could make the apostles lose their composure was enough to show how precious these crystals were.
When Reji touched the crystal ore, an introductory description popped up on the panel.
[Star Spirit Crystal]
[Crystal ore that has been nurtured by the Star Spirit's breath for a long time, producing the same pure magical power as the Star Spirits. It can be used in any situation requiring a magical field and is the most perfect resource product.]
Star Spirits.
It was another new race.
Reji couldn't come into contact with them in the game, it was a blind spot. But because he had inherited the Demon King's fate track and absorbed the demon race's heritage, many images related to the Star Spirits immediately surfaced in his mind.
Apparently, the Star Spirits were also one of the races that had been conquered by the demon race.
A burst of strong light suddenly erupted from these Star Spirit Crystals. Perhaps sensing the arrival of Reji and the other demons, or perhaps it was some existence that had been waiting for a long time and was gradually awakening, forming a psionic phantom floating in the air.
It was already noted in the previous introduction of the Star Spirit Crystals.
The crystals were formed by being permeated with the Star Spirit's breath.
And for a Star Spirit to be able to condense such a huge crystal mine, it was conceivable that its rank among the Star Spirit race was definitely not low. Only the highest-ranking ones could achieve this.
However, this high-ranking Star Spirit that appeared did not show any hostility towards the demon race that had once been invaders and destroyed their home.
It rotated its psionic body, scanning the demon apostles present with its gaze, and finally fixed its eyes on Reji.
As if it had determined something.
After that, this Star Spirit shifted its gaze and spoke to the demon apostles present in the unique, intermittent, ethereal voice of the Star Spirits:
"No amount of troops can help you cross that wall."
That wall?
What did it mean?
This question was answered in the next moment as psionic energy surged from this high-ranking Star Spirit's body. It established a mental link with Reji and the apostles present, allowing them to share certain mental images, which was a specialty of the Star Spirit race.
Through the mental link, a huge canyon appeared in Reji's field of vision.
This was exactly the canyon he had seen on the map before, the one he described as protecting the empire like the "Great Wall."
But as the image zoomed in, with the help of the Star Spirit's consciousness, Reji discovered that this "canyon" was just a disguise. Its internal structure was actually a psionic wall formed by the condensation of magical power.
Psionic Wall.
The denser an object, the harder it is to destroy, and a psionic wall made of pure magical power could be said to be the most indestructible wall in this world.
The Wisdom Demon Leo frowned. He sensed something was off. This wall was too long. You should know that the empire occupied one-third of the world's area. The amount of psionic energy required for a psionic wall that could serve as a border wall for such a vast empire was simply an astronomical figure.
Even the original Star Spirit world itself couldn't do this. The Star Spirits could at most only surround their royal city, not like the current empire, which had built a wall for the entire nation.
But the Star Spirit that followed gave the answer.
"...Star Spirits combined with relics."
"...Countless humans... connected to... the wall."
Relics? Connected?
The other apostles were still confused, but Reji immediately grasped something. Based on these keywords, he quickly thought of another system in his game.
The squad system.