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The dense cobweb-like passages beneath Blackstone Castle are known as "rat paths", and most of them were excavated by half-bloods from the slums, either to steal the Blackstone Mine or to leave an escape path for themselves. Pen "Fun" Pavilion www.biquge.info

Many of these rat paths lead to dungeons, because dungeons can provide food necessary for survival, and despite the ruthless interception of the dungeon guards, many poor people living at the bottom of the tunnel, including some adventurers, still venture into them to steal food and livestock.

The exit of the rat path where Han Fei was walking was in an extremely secret place, avoiding the checkpoints of the dungeon guards, this secret passage was originally specially excavated by an underground force, but it eventually fell into his hands.

When Han Fei pushed open the barrier at the entrance of the cave and actually entered the dungeon, he was shocked by the sight in front of him.

This place seems to belong to another plane, and only those who are immersed in the scene can truly appreciate the grandeur and magnificence of the demon dungeon.

There was no end in sight to the vast space, and the huge stone pillars were lined up one after another to support the huge and incomparable dome, each of which was hundreds of years high, making it hard to imagine how the demons had built them.

The distance between the stone pillars is very long, and the fields are neatly distributed, each field is overgrown with crops, and countless farmers are busy in the fields, a busy scene.

In addition to the farmland, there are large pastures and woods on the other side, and a river that meanders like a jade belt and eventually flows into a lake. Next to the lake stands a city, the towering mage's tower as striking as a candle in the darkness.

On the huge dome, more than a dozen huge balls of light were scattered and hung, which radiated light and heat like the sun, illuminating the entire dungeon as if it were day.

Han Fei was no stranger to this kind of ball of light, he had seen a larger ball of light in the abyss world, and its effect was almost exactly the same as that of the sun.

Being in this magnificent dungeon, people will become extremely small, and even if a person is a god-level powerhouse, he wants to destroy this underground giant city - it is simply impossible!

Fortunately, Han Fei does not have this kind of delusion, and he will not do things that are beyond his means.

Looking up at the dome, Han Fei took a deep breath, and a pair of huge black bucket wings spread silently behind him.

He raised his right foot and kicked down heavily, the hard rock where his boots landed turned into powder, and Han Fei's whole person jumped into the air with the help of his strength, and rushed straight towards the dome diagonally with his fighting spirit, as fast as a sharp arrow off the string.

Han Fei's goal was very clear, pointing squarely to the link between a giant pillar and the dome.

Before entering the dungeon, Han Fei had already had his own plan, and the information he had gathered through the Black Fire Society had made him very familiar with the situation in the demon dungeon, and he had also found its weaknesses that could be exploited.

The demons have dozens of magic arrays arranged on the dome of the dungeon, each magic array corresponds to a cloud of flames, and all the magic arrays are linked to each other to form a giant magic array, maintaining the most important source of light and heat in the dungeon.

The stone pillars that reach the dome do not only play a supporting role, the position of each stone pillar is at the connection point of several magic arrays, they are also the eyes of the giant magic array, and it is through these stone pillars that the mages of the demon clan input magic power into the dome magic array to maintain the existence of the fire of Yaoyue.

The source of the magic is none other than the Magic Crystal.

This is definitely a great magical achievement, the supreme crystallization of a magical civilization, but now it is a weakness that Han Fei has seen!

With only a few flicks of his wings, Han Fei had already rushed into the air hundreds of meters high, only twenty or thirty meters away from the top of a stone pillar.

But at this time, Han Fei was in trouble, and an invisible barrier blocked his way.

The dome of the dungeon was obviously protected by a protective magic array, and this layer of protection was definitely much stronger than the mana barrier that protected the crystals in the magic energy warehouse, and it was like a solid iron wall coldly denying Han Fei's entry.

Encountering such a situation did not surprise Han Fei, he retracted his dou wings and fell a distance, and pulled out the dragon slaying giant sword with his backhand.

There was no other way to deal with this layer of protection than to attack, Han Fei's divine mind turned, and the incomparable innate true yuan surged out from the acupuncture points of his body, and a scorching true flame fire suddenly ignited outside his body.

Under the instillation of the power of True Flame, the Dragon Slaying Giant Sword suddenly let out a crisp and long dragon groan, and the tip of the sword revealed a sword light several meters long!

As soon as the sword qi was formed, Han Fei suddenly swung his wings with all his strength, and the whole person, along with the giant sword in his hand, turned into a golden sword rainbow and pierced straight to the dome!

The sword rainbow instantly slammed into the invisible barrier, and the two completely different forces had the most ferocious duel!

Rumble!

A huge flame of light erupted from the place where Jian Rainbow fell, and ripples of light and shadow appeared in the surrounding space, like a boulder crashing into a silent pond!

The mana barrier of the dome protective magic array was immediately broken, and although its protective power was extremely powerful, the range it covered was too large, and the strength would definitely be thinned.

And Han Fei's transformation into a sword rainbow was like a sharp needle containing extremely strong power and stabbing into a huge animal skin, even a beast skin that could resist a sword and axe was difficult to resist.

The sword light dissipated, and Han Fei's figure reappeared, but he had already managed to break through the barrier of protection, and quickly approached the edge of the top of the stone pillar - crossing the boundary of protection, and there was no more obstacle.

Looking closely, you can clearly see that the surface of this huge stone pillar, which is more than ten meters thick, is densely covered with magic patterns, and it is cleverly connected to the dome, and a flame of light can be seen in the distance.

"Broken!"

Han Fei let out a deep sigh, his dark eyes burst with divine light, and a sword stabbed straight forward and fiercely into the junction between the stone pillar and the dome.

This stone pillar stone wall was not made of obsidian essence stone, the dragon slaying giant sword easily sank into the stone wall, Han Fei's wrist flipped and turned, and the terrifying power contained in the sword body exploded!

Boom!

Rubble flew in all directions, and the place where the dragon slaying giant sword pierced was violently blasted into a large hole several meters deep.

It's just that such a gap is not enough to shake the huge dome, and even the stone pillar at the bottom is only slightly shaking.

If Han Fei had enough time, it would not be a problem to use the giant sword in his hand to split the connection between the stone pillar and the dome, but he didn't have enough time and had better means.

With a wave of his left hand, the light flashed, and hundreds of magic energy crystals flew out of thin air, filling in the gap that had been broken in front of them.

In Han Fei's Gift Ring, there was a half-storehouse of magic energy crystals, and he didn't plan to take them back to the Nine Heavens Continent, because there was no use there.

These magic energy crystals are used to destroy the dungeon, and the Yao Yue Fire is his preferred target, if the Yao Yue Fire is destroyed, the dungeon will not be able to produce food and raise livestock in a short period of time, and the logistics supply of the million demon army will undoubtedly be greatly affected!

After filling in hundreds of magic energy crystals, Han Fei waved his wings and retreated backwards for dozens of meters, raising his dragon slaying giant sword and swinging it out of thin air, instantly blasting out a fire dragon that went straight to the gap!

This is Han Fei's own god-level fighting technique!

Rumble!

In the same way as in the magical energy warehouse, the extremely violent flame dragon detonated hundreds of magical energy crystals at the same time, and the connection between the stone pillar and the dome suddenly triggered a violent explosion!

What's worse is that these crystals were stuffed into a large hole several meters deep, and the power of the explosion reached its strongest, and in the earth-shattering roar, countless pieces of rubble flew in all directions, and the fire burst into dust and mist, covering a radius of hundreds of meters!

Kah!

The huge stone pillar shook violently in the explosion, making an unpleasant crunching sound, and half of its top was violently blown up, and cracks more than ten meters long appeared on the pillar below, crumbling and in danger.

The situation in the dome was even worse, the large hole that had been blown open extended tens of meters away, and rocks continued to fall from it.

This location was where one of the eyes of the Dome Magic Array was located, and the result of its destruction was undoubtedly a disaster, and a cloud of Yao Yue Fire about a few hundred meters away from Han Fei was suddenly annihilated, and a large area of darkness was around it.

It wasn't just this Yao Yue Fire that was affected, the other two Yao Yue Flames in different directions around Han Fei were flickering and flickering, and they were obviously greatly affected.

The ground in this area is a continuous field of farmland, and many farmers are working in the fields, and they are looking up when they hear a loud noise overhead.

The scene above the Sky Dome completely stunned these half-blood demon descendants who were slave pariahs, and they never dreamed that there would be such a large explosion in the dome, and they were all stunned as if they were petrified.

"Ahh

A gravel the size of a basin whistled down from the sky, smashing an unlucky farmer into meat sauce in an instant, and the others woke up from a dream, screaming and fleeing in all directions in the rain of falling stones, as if the end was coming.

Han Fei, who had retreated to a safe area in the air, smiled low as he looked at the masterpiece he had made, but he didn't waste a little time, and immediately waved his wings and flew towards the other stone pillar closest to him.

The big explosion just now destroyed an eye of the Dome Magic Array, and in addition to a cloud of Dawn Fire being extinguished, the protective barrier in this area was also severely weakened, so Han Fei's movement was not hindered like the previous time, and he easily reached the edge of the target.

Just as he was about to make a shot to blast out a gap, an alarm suddenly appeared in his heart.

Han Fei turned his head to look and saw that the magic tower of the underground demon city in the distance was shining brightly, and a purple pillar of light shot out from the spire and flew in the direction where he was.

At the same time, hundreds of black dots in the city quickly rose and flew up, and the underground demon city was completely shaken!

(To be continued)