Due to the very good location of entering the Secret Treasury Underground Palace from the Dark River, Lu Chengfeng is now located in the middle of the connecting passage of the Underground Palace.

In the first half of the dungeon, there is the main part of the defense system. As a result, after a thousand years, he directly opportunistically entered here, saving a lot of trouble. Next, he only needed to open the stone door in front of him to enter the second half of the vault. Further back, there aren't many places to guard against, and you'll soon reach the true treasure trove of the Vault.

Lu Chengfeng, who was completely relieved, took a few deep breaths and came to the Great Destruction Stone Gate.

His actions immediately activated the four giant halberd statues. In just two or three seconds, they went from motionless dead creatures to terrifying monsters with seventh-order combat power. After quickly crossing a distance of tens of meters, the giant halberd statues surrounded Lu Chengfeng, and then began to identify the intruder.

If it's the guard of the grave, then the setting must be to fight without saying a word. But this is a secret vault for future generations, and there must always be a process for identification.

This procedure is much easier than opening the secret vault spell. As long as it is a child of the Lu family, whether it is a display of Heavenly Wind Fighting Qi, a signature lightsaber technique, or a manipulation spell, they can be appeased. Lu Chengfeng casually pulled out his lightsaber, and an earth crack wave sword knocked them back, and scolded: "I am the seventh prince of the Heavenly Wind Empire, quickly retreat." ”

Seeing Lu Chengfeng's move, the four giant halberd statues were already ready to fight back. However, the familiar lightsaber technique and the modified version of the Heavenly Wind Fighting Qi made them feel as if they had been hit by ice magic, and their movements immediately stopped. After pausing for two seconds and completing the recognition, the four giant halberd statues saluted Lu Chengfeng, obediently returned to their original positions, and turned into stone statues again.

Removing their threat, Lu Chengfeng returned to the stone gate and took a closer look.

Affected by geological movements, there are obvious cracks in the upper left corner of Shimen. The stones from the zenith above smash down, shattering the magic lamp on the left. The iron decoration next to it was also smashed. Lu Chengfeng saw clearly, most of the rusty iron he saw in Farowan was smashed here, and then splashed into the dark river next to it, and was washed out along the current.

There are so many coincidences in this world.

When you open this stone gate, the stone gate at the entrance is the same. Lu Chengfeng repeated the spell, and waited for the stone gate to open in the violent vibration and shaking off the dust. Thankfully, geological movements did not destroy the mechanism.

Behind the Stone Gate of Great Destruction was still a connecting passage, and four guardian sword spirits about two meters tall.

This is a special kind of artificially created spirit with a constitution that resembles an elemental creature. It has good resistance to direct physical attacks, but is susceptible to magic and sword damage. Their bodies are uniformly equipped with the standard lightsabers that the lightsaber royal family is famous for. Every guardian sword spirit has the strength to defeat an eighth-order master.

Arguably, they are one of the strongest defenses in the entire ruins.

Seeing the stone gate opening, the four guardian sword spirits immediately surrounded them. Lu Chengfeng didn't hesitate at all, he still drew his sword and swung out an Earth Crack Wave Sword, and then strode forward. Although he has a certain amount of wisdom, the guardian sword spirit still acts according to the established rules. In front of Lu Chengfeng's lightsaber technique, the four guardian sword spirits saluted obediently and retreated in turn.

Walking ninety-nine steps, avoiding the mechanism on the road that had not yet been closed, Lu Chengfeng came to the second stone gate again.

This section of the connecting channel is more damaged than just now. One side of the stone gate was even sealed by a collapsed boulder. Lu Chengfeng had to clean it up before opening the stone gate again. Fortunately, the stone gate was also undamaged.

Go ahead again!

This time, what appeared in front of him was an arched suspended trestle that was hundreds of meters long.

In the darkness around the trestle, above the zenith, there are countless traps and attack circles. If you force the door, you will face a three-dimensional blow after going to the bridge. Since Lu Chengfeng was opening the spell, he could walk over directly with confidence and boldness. Although the mottled bridge deck is full of gravel of different sizes falling from the zenith, the blessing of the ancestors of the past generations, this trestle bridge is also very well preserved.

Then it's time to guard the final level of the dungeon.

What he needs to face is the fourth evil god who serves the Lu family, the Rakshasa of Plague!

Back then, the Lu family's sword god ancestors completely subdued a total of six evil gods. Kazan of the Sword Soul is the weakest of the six evil gods. And the one who was ordered to guard this secret vault at the end of the trestle was the evil god in fourth place, Rakshasa!

It can be seen from the title that this is a ghost god who is proficient in curses and plagues. If you accidentally step into its realm, you will be cursed and poisoned before you know it. Moreover, this poison has the effects of blindness, bleeding and paralysis. Especially the last one, the effect is the most terrifying. Poisoning is nothing, and many master antidotes can lift the curse of the Rakshasa of Plague. The point is, it has a paralyzing perceptual effect, so that you can clearly feel the poisoned curse but you can't feel it!

That's the scariest thing.

When it comes to the final stage of blood loss, body stiffness, and blindness in front of the eyes, it is too late to realize that something is wrong. The effect of the poisonous spell is fully exerted, unless you have the strength to defy the sky and the divine pill that can be reborn, there is only one death!

Among the six evil gods, the Rakshasa of Plague may not be the strongest, but it is the most terrifying and unguardable.

The moment Lu Chengfeng stepped on the end of the trestle, in the darkness, the magic circle under his feet had already quietly begun to operate. The purple evil god power of the Plague Rakshasa began to faintly emanate from the ground. Although he didn't feel abnormal for the time being, Lu Chengfeng knew that the Rakshasa of Plague had already targeted him.

"I am Lu Chengfeng, the seventh prince of the Heavenly Wind Empire, and the fourth ghost god Rakshasa, please show up. ”

He bowed respectfully to the front, and directly called out the true name of the fourth ghost god, as if borrowing Kazan's power in the wilderness desert.

In the darkness, there was a cry of surprise.

Immediately, the darkness around Lu Chengfeng dissipated like water waves. Under his feet, the magic patterns of the purple rune array began to shine. Lu Chengfeng could clearly see that there were countless purple cold evil spirits in the rune array. There are a few that have even almost crawled to his feet.

If you listen carefully, you can clearly hear the ghosts crying and wolf howling.

If it was someone who had never seen this scene, I was afraid that he would be scared half to death by this gloomy scene, but Lu Chengfeng was relieved. The most powerful thing about the Rakshasa of the Plague is that it is invisible and silent. If it is really revealed like this, it is a proof that the Rakshasa has no intention of attacking, and it is showing its power.

In the next moment, ripples in the form of water waves appeared, and purple energy flowed backwards to the center of the rune array, forming a terrifying figure.

This is certainly not the Rakshasa of the Plague, but it is one of the places where it is most interested. Although it was initially absent from the Vault, after several refinements, the Rakshasa of Plague was eventually ordered to guard it. Any child who is not from the Lu family will be attacked by the Rakshasa when he enters here.

At this moment, he obviously felt that Lu Chengfeng was not a child of the Lu family, so he asked suspiciously: "Are you really the prince of the Tianfeng Empire? Why didn't I feel the bloodline power of the Lu family from you? Even if you are a descendant, it is impossible to be so weak that it does not exist at all!"

Lu Chengfeng knew that he didn't believe it, so he directly recited the spell that commanded the ghosts and gods, and explained: "For some reason, the Heavenly Wind Empire has fallen, and my soul has been possessed by an ordinary person. So although there is no bloodline, it is an authentic descendant of the Lu family. In the Chengwu Hall 1,220 years ago, I summoned you for the first time, I guess you still have an impression, right?"

As soon as the spell comes out, even if the Rakshasa of the Plague doesn't believe it, it must obediently obey the order, otherwise it will suffer the backlash of the soul contract set by the god-level powerhouse himself. Therefore, after listening to Lu Chengfeng's explanation, the Plague Rakshasa was silent for a moment and chose to believe. He sighed and waved open the last door in front of him.

"Your Majesty, my guardianship mission here has been completed. It's just that I didn't expect that such a big empire that you built back then would disappear so quickly......"

It seemed to whisper something wistfully, and its form became lighter and lighter, and finally disappeared into a streamer.

The power of the purple rune array seemed to have lost its core and quickly dimmed. This time, it really stopped running completely. The evil spirits in the talisman array also shouted unwillingly, turning into purple smoke clouds and scattering.

All is dark again.

After saluting again, Lu Chengfeng stepped through the last door.

Feeling his step, the hall in front of him suddenly turned from darkness to light. Dozens of illumination crystals, sensing his presence, automatically woke up from a slumber and began to provide a stable light source. Under this bright light like day, Lu Chengfeng clearly saw everything in front of him.

In the center of the main hall is a load-bearing pillar that plays the role of the main support, and is also the core of many enchantments. The effects of these enchantments include resistance to the erosion of time, prohibition of mana escape, protection against external pressures, etc. With these enchantments, there will be absolutely no problem with the treasures in the main hall. It's a pity that under the strong action of geological movements, even the strongest magic circle has problems. In the northwest corner of the main hall, a part of the mountain even collapsed directly, completely burying countless treasures.

Although the central load-bearing column has not collapsed, there are huge dislocations and cracks.

Naturally, most of the enchantment circles with it at its core also failed. This unimaginably bad situation made Lu Chengfeng frown deeply. There is no barrier to resist the passage of time, how can the copies of the magic books, elixirs, and equipment stored in it survive thousands of years? Although the treasures in the vault are still there and have not been discovered by others, can they still be used?