Quartz ore is not rare in the north. The composition of quartz ore and sand is very close. Even if there is no quartz ore, it can be replaced by sand.

As for mushroom plants, just collect some from around the ruins. The cultivation of mushroom plants is not difficult, and the requirements for the environment are not high. Su Lun collected all kinds of mushroom plants here, and then took people to catch all the remaining crystal beasts in the ruins.

The number of crystal beasts is not large. Except for the dead, there are still 26. All these crystal beasts are packed in cages and transported back. Finally, after searching the secret place, Su Lun took the team back after leaving nothing valuable.

After leaving the square, all the monsters in the ruins ran out of their nests, including death claws, giant centipedes and a giant beetle like a tank. These insects rushed up immediately after discovering Su Lun and others.

"Summon magical creatures!"

A six pointed star array rose from the ground. The next second, four vigorous figures rushed out of the magic array. It was four silver giant wolves. These giant wolves were 1.5 meters tall, strong and sharp claws. They rushed to several mutant insects as soon as they appeared.

These giant wolves cooperate with each other, two harassment and two main attacks. If they were not for the strong crustaceans of the mutant beetles, they would have been killed and injured seriously.

"Reduce defense!"

"The whole army is excited!"

"Advanced group acceleration!"

"Group demonized weapons!"

An aura flashed from Su Lun, and everyone immediately felt that his body was full of power. The Centaur kept firing arrows at the insects. The arrow clusters made of refined steel shot out strongly, and then stabbed into the crack of the mutant insect's shell, and green blood gushed out.

After the grey dwarfs added magic, they walked with short legs and rushed over. These grey dwarfs had experience in dealing with giant beetles. Several people attacked the limbs of the insects in groups, and the sharp axe kept cutting the leg joints of the insects.

Those giant beetles had no time to resist, so they were cut off a few legs, dumped their huge bodies directly to the ground, and then were rushed up by many gray dwarfs and completely eliminated.

Several barbarian crazy soldiers roared, and then rushed up with a giant axe in one hand. These big men, who are more than two meters tall and have muscles all over, jumped onto the back of the death clamp insect in one jump. The powerful impact directly made the death clamp insect hit the ground, and the giant axe in their hands hit its head.

Although it was protected by a hard shell, under the strange power of the barbarian, the shell was broken and the blood flew everywhere with a few axes. The death beetle under the pain of eating swings its body wildly to throw down the people on its back, but those barbarians stand on it easily and can't get rid of it. However, with a few breathing efforts, the action of the death beetle becomes smaller and smaller, and finally falls down.

"Fireball!"

"Chain lightning!"

"Ice storm!"

With a finger of the staff in Hathaway's hand, a big fireball fell among the giant centipedes. The huge explosion sounded, and the surrounding giant centipedes were blown to pieces. A lightning flashed back and forth on the battlefield, and several giant centipedes were numb.

Countless ice blades appear out of thin air and then rotate quickly. Where the ice blade whirlwind passes, a large number of monsters are directly cut into pieces, and a large amount of bloody smell is filled in the air.

With the people's elimination, all kinds of mutant monsters in the ruins decreased rapidly. With the magic blessing of sulun and Hathaway, the whole battle became very simple. It was still a headache to deal with such rough and fleshy monsters in the past, but their weapons could easily tear each other's defense after blessing all kinds of magic.

With the cooperation of sulun and Hathaway, the whole battle became very easy. Although there were a lot of mutant monsters, they didn't make any waves. Soon, with the cooperation of the people, these monsters were either killed or ran away.

After a simple collection of trophies, the main ones are insect crustaceans. Whether they are giant beetles, giant centipedes and death forceps, these monsters have a large number of crustaceans. These crustaceans are hard and have good toughness. Many crustaceans are a good tower shield as long as they are simply trimmed.

After picking up the belligerent booty, the party returned to the goblin tribe again, gathered the remaining troops, and then escorted all the goblins back together. When they came, the army was light and simple. When they returned, they not only had nearly a thousand slaves, but also more than a dozen carts.

The marching speed of the team became much slower. When the monsters around them saw the army, they bypassed it long ago. Along the way, sulun and they didn't meet any enemies. It took three days to explore the ruins, which ended successfully and brought great harvest.

After returning to the Minotaur camp, Suellen handed over these newly captured goblin slaves to the drow elves for training. In addition, there were nearly 5000 workers in the Minotaur camp.

Sulun named the city Crete, and then commanded a large number of slaves to build the city. A large number of slaves, including tauren, began to build the city. The most important thing in the underground world is rocks. More than 200 Tauren mined rocks under the command of Chris, and then began to build the city after being repaired by the grey dwarfs.

The area of Crete is not large, and the permanent population here is not large. More often, it acts as a transit station to transport the minerals mined from the surrounding mining areas. Sulun specially built a transmission array in Crete, and then appointed Chris as the Lord of Crete.

Suellen now has a serious shortage of management talents. There is no way to let Chris stay in Crete for the time being. However, due to the existence of transmission array, Chris can return to the North Town at any time, even manage the city in Crete during the day and get shot in the North Town at night without delay.

With the support of obsidian mine in Crete City, the wizard tower in the north town began to be built. Sulun didn't stay in the North Town much. He had to build a suitable breeding base for those crystal beasts as soon as possible.

Before the breeding base was completed, a piece of land was set aside in the north city of sulun town to make these crystal beasts live temporarily. When they came to the new environment, these crystal beasts quickly adapted. Perhaps because there was no radiation, these crystal beasts looked a little depressed.

The plants used to feed the Crystal Beast are river sand, mushroom and other plants collected by sulun's people. The meat is basically fish. The supply of beef and mutton in Zhenbei city is still scarce. Naturally, it is impossible to feed the Crystal Beast, but fish is also a good choice.

Su Lun is going to build the breeding base of the Crystal Beast in a secret place. The elements here are energetic and the place is secret enough. As long as the equipment is reassembled, it will be very suitable for the reproduction of the Crystal Beast.

Come to the secret place through the transmission array. After the repair of Eagle people, the secret place finally looks a little popular, not as shabby and desolate as before.

"Welcome back, master!" the voice of Tallinn one sounded in my ear.

"Long time no see, Tallinn one." Su Lun said hello casually.

"Master, this is the progress of the restoration of the secret place during this period, as well as the list of materials needed to repair the secret place." taling 1 projected a light curtain, which recorded all kinds of materials. After reading only a part, Su Lun felt numb.

Although most of them are ordinary materials, the price still makes Su Lun feel meat pain.

"Well, taling No. 1, you should know the value of these materials. Now we don't have so much money to buy, so we can only repair some." Su Lun rubbed his eyebrows and said.

"By the way, I got some iron demons this time. Do you have any way to control them?"

"Master, I can try to control the iron demons, which takes time to break through their soul barriers," taling 1 said.

"That's good. Anyway, these steel demons are useless. Just take your time to break them." Su Lun nodded and took several steel demons out of the storage space directly.

Six steel statues damaged three, and three were intact. However, these three are intact and controlled by Su Lun using special methods, and they can't resist at all.

"Connecting steel demons..." as soon as several steel demons appeared, taling 1 began to work instantly, and a wave of soul appeared. These steel demons fell into a dull state instantly, and the red light in their eyes began to flicker.

"Connection succeeded... Cracking in progress..."

"Analyzing target defense mechanism..."

"Defense mechanism simulation succeeded, start intrusion..."

"The intrusion is successful. Start to modify the original target program... Resetting the target program..."

With the cold mechanical sound of taling 1, a large amount of energy gushed out of the element pool to supply taling 1 for consumption. Those iron demons seemed to suddenly fail and their bodies kept rotating.

"The modification is completed, and the iron magic image has been successfully controlled!"

"Permission modification is completed. The current maximum permission is set to sulun."

"Setup succeeded, device restart in progress..."

Taling 1, as a legendary taling, has the advantage of rolling low-level taling and steel magic statues. These steel magic statues were successfully modified by taling 1. From today on, there are several more steel demons in the secret place.

The remaining three steel demons have been damaged, but sulun didn't destroy them wantonly when destroying them. Their damage is not serious. After taling's scanning, they are fully capable of repairing. They only need to replace or repair the parts and core of the steel demons.

There are many steel magic statues that have lost their repair value in the secret place. Many intact parts are left in these magic statues, which can be directly replaced.