Tan Chu's question suddenly made all the NPC craftsmen stunned...

They had already understood what the new city lord meant, and they actually wanted to see the demon's lair!

"Lord of the City, the environment ahead is dangerous, once you get close to the location of the Demon Altar, they will immediately find you, I advise you not to go." Lu Xiu warned.

"Last time, the old city lord was almost found here, but fortunately, thanks to his superb divine power, he barely escaped back to the town, you guys..."Lu Tiehammer shook his head and said.

Demon Altar!

Tan Chu and the two beauties listened to the words of the NPC, and suddenly their hearts became even more excited...

With such a strange thing in existence, there is indeed an important mission hidden here!

"Rest assured, we are not afraid of death, it is not a big loss to us to die once, the masters tell us the direction, let's go and see the location of these demons, and prepare for dealing with them in the future." Tan Chu said.

"Masters, don't worry about us, we'll be fine." Lin Yurou followed.

Tan Chu likes hidden quests because they can bring more generous rewards.

Lin Yurou is different from him, she likes to solve all kinds of super difficult tasks, just like solving puzzles...

"However, once you alarm the demons, we will not have the opportunity to collect materials." Lu Xiu said embarrassedly.

"That's right, as long as you are discovered by the demons, the monsters in the entire demon cave will pour out, and there will be no safe place in this map." Lu Tiehammer said.

"I see." Tan Chu was stunned by their words.

The matter of collecting materials must be done as soon as possible, and the city construction of Beast Rebellion Town cannot be delayed for too long, after all, he and his teammates still have to go out to level up and farm monsters to do tasks.

But the environment here gave him a strong curiosity, and he guessed that there must be an unexpected mission hidden in this lost land!

"Little beast, let's just wait for the masters to collect materials first, and then let's go explore the map." Zhang Daishan suggested.

"Okay, let's wait for now, the masters will be busy first." Tan Chu nodded.

"That's not bad, let's help the masters gather materials first." Lin Yurou said with a smile.

"Don't dare to bother the city lord, the materials here can only be collected by a few of our old guys, you can rest by the side." Lu Xiu said with a smile.

"Let's start first, just watch the city lord." Lu Tiehammer said.

I saw all the remaining masters, as well as dozens of NPC children, immediately striding towards the black mountain wall...

Tan Chu and the two beauties looked at their actions suspiciously, wondering how they were going to collect materials.

The purpose of these people is actually to go to the black stone wall?

But just now, Tan Chu had already checked this stone wall, and there was no hint in it that there was a vein in the system?

Seeing Lu Tiehammer holding a mining shovel, Lu Xiu held an unknown iron pickaxe, strode towards the stone wall, and then in Tan Chu's surprised eyes, he began to get busy...

Jingle bell...

Lu Xiu first brandished a cross pickaxe and smashed it towards the stone wall, and then the sound of metal hitting the stone wall continued to sound, and pieces of black rocks were knocked down from the stone wall in an instant...

The black rocks that fell were neatly cut into small square pieces like sliced tofu, and the NPCs that followed immediately collected the black rocks into the package one by one...

The black light flickered continuously, and large piles of neat stones were collected by them.

Tan Chu immediately understood that these black stones were also the materials needed to build the city, black stone bricks!

I'll go, that's how I collected stones...

Tan Chu, who was surprised, was not familiar with the manufacturing industry, and when he looked at the way Lu Xiu was collecting stones in front of him, he immediately suddenly realized.

But more surprising things are yet to come...

As Master Lu Xiu dug a square pit in the black stone wall, he immediately put away his pickaxe and moved to another mountain wall to continue his work.

At this time, Lu Tiehammer walked into the stone pit that had just been dug with a mining shovel, and then began to collect...

Ding Ding Ding...

The familiar sound of collecting ore sounded, and pieces of ore with a glittering black metallic luster fell out of the stone pit, and a few NPCs waiting outside immediately picked up pieces of black iron ore on the ground...

Tan Chu only glanced at the ferrous metal ore underground, and he understood the usefulness of these things.

When repairing the city yesterday, Lu Iron Hammer used a lot of black iron ore to create armor and weapons for NPCs, and special arrow clusters for arrow towers and bed crossbow machines.

This special ore is not the kind of black iron ore that players dig up...

Black Crystal Iron Ore: System Props, Special Living Materials for Advanced Blacksmiths...

．．．

Belch...

Tan Chu looked at the pile of black shining ores on the ground, and couldn't help but be stunned.

As a professional blacksmith player, he could only see half of the attributes of this ore, and he couldn't even see the quality.

Special living materials for advanced blacksmiths!

The introduction of this system directly made him stunned...

Nima, do you have to upgrade to a high-level miner before you can collect black crystal iron ore?

Dedicated high-level special materials, which means that this material is not used to craft equipment for players, but to make some special items with other functions.

He is now barely promoted to an intermediate miner, and he still has a long life experience before the next upgrade, according to Tan Chu's estimation in his heart, even if there are high-level ore veins in the Night Charm Dungeon that can be collected, he will have to dig ore for more than a month without sleep before he can be upgraded to a high-level miner!

Life and career promotion is like this, the front is simple, and it is getting more and more difficult in the back, unless it is to continuously collect high-level ore veins, it is possible to quickly fill the experience and upgrade.

Tan Chuzhi said, what the two masters said was right, he couldn't help at all now...

He accompanied the two beauties, sat at the edge of the forest and looked at the surroundings boredly, waiting for the masters to finish their work early...

After more than an hour of waiting, the teammates, who had been resting at the suspension bridge for a long time, couldn't wait for the first time.

"Boss, are you going inside?" Traceless looked at his map system, where the three blue dots were already at the end of the map in the distance, very far away from them.

"Boss, you come and pick us up." Said the fallen leaves in the wind.

"It's so boring here, Boss take us in." The snow fell and begged.

"There's no way, we don't have NPCs to lead the way, and we don't dare to go out now, you just go back to the city and wait for us." Zhang Daishan smiled.

"Yes, the masters are so busy now, and we are embarrassed to let them run and lie down again." Lin Yurou said.

"Alright then, let's go back first." The teammates looked helplessly at the dense jungle in front of them, and could only choose to go back to the city and wait.

With a flicker of white light, they teleported back to the Wild Beast Rebellion Town...