Following the herald through the camp and the battlefield, Liang En came to the fortress on the mound where Wanghaiwei had been. As a person with professional archaeological training, he could see at a glance that the mound was not very natural.

Because from the nearby topography, this place is an ancient alluvial plain, and the sudden uplift of such a commanding height is very abrupt, not to mention that the edge of this mound looks very straight, as if it has been artificially trimmed.

"Huh?" After looking left and right, Liang En focused on the section created on the side of the earthen platform during the attack on the castle just now, and a large number of traces of rammed earth could be seen on the section, further proving that the mound was not naturally formed.

After silently noting down this anomaly, Liang En took two steps to follow the herald, and then entered the tunnel under his guidance.

The mouth of the tunnel was hidden in a burned-out grain depot and was initially so narrow that only two people could pass side by side. But as they descended, the tunnel seemed wider and wider.

Liang discovered that the tunnels were not improvised. Rather, it was there a long time ago, so you can clearly feel the difference between the soil that was later filled and the soil around the tunnel.

At the same time, the whole tunnel has a complete ventilation system that is by no means dug in a short time, even if they go deeper than 20 meters underground, they still don't feel how turbid the air is, and even the oil lamps and torches in the tunnel can be lit normally.

Finally, 10 minutes later, Liang En was led by the herald to an underground space the size of a basketball court, and in an instant, a smell of blood wrapped around the tip of his nose.

The smell of blood came from the hundreds of corpses on the ground, and judging by their clothing and posture, the elite of this group of pirates fought to the last moment in despair, and none of them surrendered.

And what the pirates wanted to protect was on the stone wall behind them, it was a gate like a relief, but at this time the gate had opened a gap, revealing a milky white light behind the gate.

Interestingly, the gate and the door frame appear to have been built by two groups: the gate itself has the smell of the Afterlife door of an ancient Egyptian tomb, while the outer ring of marble door frames inscribed in Arabic script is close to the Persian style.

Now it seems that the entire earthen platform was probably built for this gate, but with the passage of time, later people have forgotten the original contents of this earthen platform and built a castle on it.

"Mr. Liang, we need your help next." After seeing Liang En, the chief soldier wearing gold armor hugged his fists slightly and saluted a half.

"There's a lot of writing here, but we can't find anyone we know. I heard Mr. Tian say that you understand Tianfang characters, so I called you over, which is really annoying. ”

In the face of Liang En, who is only white, Ping An as the chief soldier does not need this attitude at all. But because Liang En's previous Grand Duke selflessly took out a lot of skills that can be called the bottom of the box to rescue the wounded in this era, Ping An also lowered his posture at this time, and even expressed his respect for Liang En's previous actions through the honorific title of Mr.

After all, this is an era when secret recipes can prosper for several generations of a family, and Liang En's ability to take out multiple secret recipes of this level in one go and directly disclose them is definitely an extremely morally noble practice.

"Don't dare, don't dare, as a citizen of the Great Song Dynasty, this is what you should do." Seeing this, Liang En immediately returned the salute, he knew that the things he did had attracted the attention of the other party, but it was definitely not the capital of pride.

Because of the urgency of the situation, after a few simple greetings, Liang En came to the door and read the words on it.

Perhaps because he was overconfident that not many people in this land knew their words, the people who left the words before wrote things very straightforwardly, and Liang En quickly understood the Arabic content.

"It's a door to another world that needs to be opened with blood and soul." After reading it twice and making sure that his translation was correct, Liang En told those present what the contents of the door were.

"Because you have eliminated a large number of pirates here, their souls and blood have opened this door, and ten people can enter next."

"As for the back of the door, there is a treasure left by the Pu family who came to Middle-earth for the first generation, according to the content here, if the Pu family declines, it will be able to rise again with this treasure."

"And what's in there?" Ping An asked a little nervously, as a soldier, he deeply knew the importance of knowing oneself and knowing one's opponent and not being defeated in a hundred battles, so he really wanted to find out what was behind the door.

"The world, a small world." After reading the word repeatedly, Liang En's face showed a mixture of nervousness and doubt.

"According to the text on the door, behind this door is a fertile land with a radius of 100 miles, a small world that can provide a lot of water and sunlight."

Speaking of this, Liang En thought for a while and found the corresponding content in the knowledge he had recently learned about spiritual practice. "To put it another way, what exists behind the door should be a medium-sized cavern."

"It's a pity that according to the words engraved on it, this cave heaven does not have any extraordinary power except for the core of the cave sky, so it may not be used for anything other than farming."

"A cave that can farm!" After listening to Liang En's word farming, the eyes of almost everyone present lit up, for this nation, a piece of land with a radius of 100 miles and smooth rain is definitely a treasure.

Considering that the existence of this door meant that the people inside did not get the core of the cave world, everyone quickly began to organize an expedition team to go deep into that small world.

As a civilian, Liang did not have to join the team, and he himself was undecided whether to participate in the adventure. But when he was thinking about this matter in his mind, he felt that there was a faint response from the Qinglian Sword Technique he had cultivated.

"It seems that I still don't understand deeply along the way to cultivation——"

After carefully feeling the call from the depths of his soul, Liang En immediately understood what was happening to him.

Li Taibai, who can make the concubine study ink and take off his boots in front of the Son of Heaven, naturally has the courage to go into words, so the inheritance he left behind will naturally require the cultivator to have courage.

So for the sake of the smooth path of cultivation and to satisfy his curiosity, Liang En took the initiative to sign up for this adventure.

As the only person present who knew Arabic, Liang En was immediately selected into the team after signing up, and after simply organizing the team, Liang En and their team set off.

"It's—it's!" After crossing a gate of light, Liang En was surprised to see a golden field appear in front of him, and a huge and warm golden sphere hung high in the sky.

Slowly retracting his gaze to the sky, Liang En looked left and right, and found that there was a sparkling river a hundred meters away, and in the distance upstream of the river were dozens of large and small pyramids, with golden spires shining in the sun.

"Besri!"

One of the former Confucian mages in the team suddenly called out a name, which in modern terms is Egypt.

Because their magical knowledge originated from the West, the original Confucians naturally had a deep understanding of this ancient country, so they knew where the cave world under their feet came from the first moment they saw the pyramid.