"My lord, you say, could it be from Cui Si's Eastern Emperor Realm? I've heard that several True Monarchs who are close to Cui Si have bought enough high-level materials from him to complete the tasks of Heavenly Court, and they have earned a lot of contributions for this! The subordinate officer said.

"I've heard about this, but the problem is, you also know Cui Si's Eastern Emperor Realm, there is garbage everywhere, even if there is a mine, it takes manpower to excavate. Cui Si's subordinates have killed millions of flower demons, not only to build his lair, but also to dig high-grade materials, where can he pull out his hands and get the Iron Mother who can build the Great Wall? ”

"Well, maybe he has another way!" The subordinate official said reservedly: "Well, otherwise, I will go to the Eastern Emperor Realm to investigate in private, as long as it is not exposed!" ”

When Huo De Xingjun heard this, he immediately said: "No, it is a felony to trespass into other people's territory in private, and if it is discovered, even I can't save it!" ”

"But...," the subordinate officer frowned and said, "If you don't investigate the source of the iron mother in Cui Si's hand, I'm afraid there will be a lot of gossip and right and wrong?" People will say you're biased! ”

"I know!" Huo De Xingjun frowned and said, "It's better to do this, I will send you to the Eastern Emperor Realm on a business trip to discuss the acquisition of those high-grade materials." When you were negotiating, you took the opportunity to find out what was going on, understand? ”

"Yes, understood!" The subordinate officer hurriedly agreed.

"It's good to understand, go ahead, go back quickly!" Huo De Xingjun admonished.

"Yes, the subordinates are retired!" The subordinate officer said yes, then bowed and withdrew.

Just when Huo De Xingjun was secretly investigating Cui Si, Cui Si was also in torment and spent a month. After all, the troops of the demon clan still didn't fight at this time when Cui Si was the most vulnerable, which made Cui Si somewhat relieved.

With this month's buffer, the city defense of Wanli has begun to take shape, the highest place, more than one hundred and fifty zhang, and the worst one hundred and twenty zhang, although it is still far from Cui Si's requirements, but it can already have a certain defensive power.

So Cui Si ordered to stop pouring for the time being, and instead began to depict defensive formations, as well as various prohibitions. Without these things, the city defense is completely scum under the attack of the demon clan, and once the protection is in place, it will become an iron wall, so that the demon clan who comes to attack will hit the head and break the bloodstream.

Depicting the formation is actually a more troublesome job, but fortunately, there are more than four people in Cui, and millions of monks go into battle together, day and night, taking turns fiercely. Dry. The speed was faster, and in just six or seven days, the outer layer of prohibition was almost completed.

And this also cost Cui Si a huge amount of inventory, not only did almost all the relevant materials in Chen Tangguan be exhausted, but even the materials decomposed in Cui Si's own jade pendant space were also used.

Fortunately, after having initial protection, he can generally resist the attack of the demon clan, so Cui Si is not in a hurry to get those high-level materials. Just let them continue to build the city wall, and when the city wall is repaired, hehe, the materials in Cui Siyupei's space will almost decompose a new batch.

However, Cui Sihao's mood didn't last long, and was broken by the scouts in front.

The Four Sea Demon Clan really won't suffer easily, and after such a long time of preparation, their revenge has finally begun!

The first unlucky thing was the reconnaissance force sent by Cui Si, a small group of thousands of scouts, less than half of them came back alive, and the news they brought cast a shadow on the entire Chen Tangguan.

Judging from the banner, there are seven big demons in the army of the demon clan who came to the border this time! That is, the seven Da Luo Jin Immortal-level monsters are going to avenge the two dead companions.

The subordinates of these seven great demons rushed along the sea, stretched thousands of miles, and did not know how far away they were vertically, in short, they were vast and endless, and they were countless. According to the most preliminary estimate, the number of troops is also more than 30 million!

Such a perverted army, connivance is something that Chen Tangguan couldn't beat in his heyday! Not to mention now, the chief soldier Cui Si and the deputy chief soldier Tianxue Jian can't shoot due to injury, and there is only one person who can compete with the big demon, Huang Jixiang.

And the city defense of Chen Tangguan is not outstanding, although after it is completed, the thousand-zhang city wall, plus countless dragon cannons, can form an invincible fortress. But now, the city wall that is only more than 100 zhang high, coupled with the hastily portrayed protective formation, is far from invincible!

After getting the news, Cui Si immediately convened a meeting, and Huang Jixiang, Feng Xi and more than 100 golden immortals all came to the venue.

When everyone heard that they were facing this situation, everyone, including Huang Jixiang, couldn't help but be taken aback, and their faces turned white with fright.

Huang Jixiang directly said with a bitter face: "Boss, the enemy is too strong, we can't resist it!" Why don't you withdraw quickly? ”

"You want me to escape?" Cui Si glanced at Huang Jixiang lightly.

"It's not an escape, it's a strategic shift!" Huang Jixiang hurriedly said: "Let's retreat to the big city behind and continue to block them, it's the same!" ”

"It's different!" The person who spoke this time was Feng Xi, and he said with a bitter face: "If we retreat, Chen Tangguan will be finished, this place is a strategic place, supported by more than a dozen dragon veins behind it, and the immortal qi is extremely rich." That's why we want to occupy this place. And if it falls into the hands of the demon clan and wants to take it back, it will be even more difficult than climbing to the sky! ”

"But if we don't withdraw, we'll die!" Huang Jixiang said angrily.

"If you withdraw, you will die!" Feng Xi said with a bitter face: "The Heavenly Court Law is not a vegetarian, and those who flee before fighting will have only one end, and there will be no forgiveness for killing!" ”

Hearing Zi Feng Xi's words, Huang Jixiang's face suddenly turned grim, and he smiled bitterly: "Then what you say?" We're dead? ”

"Of course not!" Feng Xi said: "Although you can't retreat without a fight, you can wait for reinforcements." The call for help has been sent, as long as we can hold on for more than a day, we can get through this catastrophe! ”

"Hmm!" Cui Si nodded, and then said: "Don't talk nonsense, at most an hour, the opponent's forward troops will arrive, pass my order and prepare for the battle!" ”

"Yes!" The crowd said yes, and then dispersed.

In fact, before Cui Si's order was issued, these defenders of Chen Tangguan, who knew that the enemy had come, had already begun to prepare for war. After all, they have been stationed here for a long time, and they have long had experience.

And after Cui Si's order was issued, this kind of preparation work was in full swing. I have to say that the speed of the immortals' preparation for war is fast, the first moment it was a busy construction site, and the next moment the craftsmen have become warriors, and the materials such as the iron mother and the blast furnace are all put away, and in their place, they are all dragon pattern cannons.