The magic altar should be a special building that can enhance the magic power of heroes and lords, but the construction of this building requires a lot of resources, if it weren't for Su Lin's crazy collection of resources during this time, he would probably have to hesitate now.

Both territories are constantly consuming resources, which is a lot of pressure for Su Lin, the resources consumed by the orc towns are not much less than the resources consumed by the dark elf towns in the underground world, especially now, the orc towns on his side still have to consider upgrading the level 4 ancestral temple.

"Forget it, let's upgrade first, this resource can't be increased if you keep it."

In the midst of the entanglement, Surin has left the underground world and entered the orc town, and at the same time opened the town panel of the orc, and began to choose to upgrade the ancestral temple, and at the same time, in the wild mill, Surin chose to continue to upgrade the city wall.

Beast towns have such an advantage, there are special buildings to improve the defense ability of beast buildings, all beast buildings will grow a circle of spikes after the construction is completed to protect them, even the city walls, which is especially deadly for those low-level monsters.

The sound of felling was constantly coming from the nearby forest, it was the orc coolies clearing the trees, Surin had cleared this area, he had to make a safe zone, no one would think that it was a good thing to have a group of demonic beasts around his town, Surin needed a truly safe territory.

The number of magical beasts in the Alpha Forest has decreased a lot, but this is not a big deal for adventurers, they will generally take a team of three or five people to search for prey that they can hunt everywhere in the Alpha Forest, and there is no one in the area of Fallwood Town, so you can go to a slightly farther place, anyway, the territory occupied by the Alpha Forest is quite vast, and they are not afraid of no prey.

Now Urvona has moved the upgrade site to the underground world. The number of demonic beasts in the underworld is increasing unabated, and as Surin's territory further expands, more and more demonic beasts have begun to enter their hunting range.

The underground world can already be seen as a large gathering of strange magical beasts, and during the previous battle, Surin saw a lot of strange magical beasts on Dexter's side, such as the dog demon. For example, night bats, as well as the digging sandworms and the dark vines that suddenly emerge from the dirt and grow wildly, these are special magical beasts that can only be found in the underground world.

And what Urvona is dealing with now is also such an enemy, she has already eliminated more than 20 digging sandworms, these guys are actually the best to deal with, because she brought 30 adult digging insects here, these guys are quite easy to deal with digging sandworms, the soft body of the sandworms. There is no way to stop these guys from tearing their knives and feet, and a random attack is enough to tear the burrowing sandworm in half.

Surin is directing the beast coolies on the ground to expand the new city wall, and the lord system is constantly passing on the acquisition of killing experience and soul gain, which is a pretty cool thing, and through these prompts, Surin can also roughly deduce what enemy Urvona is dealing with at this time.

The burrowing sandworm is just one of them, and the swarm of night bats has already been served by Ulvona. These guys are the simplest kind of enemies, although the class is quite high. But Urvona's side has updated the latest magic in the magic tower, she has an intermediate fire magic mastery, which is chosen to improve her violent ability in battle, and in the magic tower, the intermediate magic mastery, can already learn the magic of the wall of fire.

A massive metal fence forged by Greybeard* Brute Hammer completely blocked out the cave where the Night Bat was located when the flames rose. All the night bats flapped their wings frantically, but they couldn't break through the fence guarded by the seven bullheads, and finally under the crazy burning of the wall of fire, they turned into ashes and demonic crystal nuclei.

"Take it all back."

Urvona had no sympathy for the destruction of this group of night bats. These guys are Dexter's helpers, and it would definitely be a scourge to keep them, so it's better to get rid of them in advance.

As for the Warcraft Crystal Nucleus, this one must not be let go, but as they left, a shrill prompt suddenly came from an accompanying kobold digger.

"Oh? There are still veins here? ”

Hearing the kobold scream, Urvona herself was about to leave and retracted her steps, she thought about it, and ordered the other troops to rest and guard in place, while she entered the cave with a group of bloody witches and kobolds.

At this time, the temperature of the cave was quite high, which was quite uncomfortable for Urvona, and with her cold snort, thick frost began to appear on the rock walls of the cave, and the temperature in it also began to decrease.

"Here, there will be a vein? It's also rare. ”

There was a kobold in front of her to lead the way, and Urvona also kept moving towards the depths of the cave, and the more she walked inside, the more she felt a coldness, this cold was not the icy breath she released before, but a kind of coldness from the soul!

"There's a special vein in this!"

Urvona knew very well that it could cause changes in the surrounding environment, and the veins here were not ordinary veins, and the previous group of night bats were reluctant to enter the interior of this cave when they were burned, which obviously had something to do with it.

Moving on, Urvona could already clearly feel a thin layer of frost on the ground, the kobold digger was already shivering from the cold, Urvona frowned, and as soon as she raised her hand, a huge fireball appeared in her hand.

The appearance of the flame dispelled the darkness around them, and they would not rely too much on the lighting of the flame because they had dark vision, but at this time the flame was not lighting, but providing them with a trace of warmth.

As the red light illuminates the cave, Urvona also notices that something is wrong with the nearby mountain wall, and at her command, a bloody witch swings her blade and forcibly digs a rock from the mountain wall.

That's right, it's digging, because the rocks around here have become so solid that they look like huge mounds of ice, even if it's dirt that should be loose, and you can't dig it out without cutting it hard.

"It's crystal powder."

Glancing at the powder in the soil, Ulvona could only roughly tell what it was, in the soil, there were many crystalline crystalline particles, the particles were diamond-shaped, very much like the slag of crystal, but it always gave Ulvona a cold feeling, and under doubt, she made a decision.

"Retreat, almost."

Urvona chose to leave directly, and continued to move forward, the temperature will be lower, the kobold digger does not have enough warmth measures, and his body has been covered with thick ice slag, not only it, even Ulvona feels a little uncomfortable, it is too cold here!

"Where did you find these powders?"

In the dark elf town, Johannes' eyes widened as he looked at the crystal powder, and he asked curiously after taking a closer look at it in his hand.

"In the cave of the night bat, these guys are burned to death and do not want to go into the depths of the cave, the kobold diggers feel that there are veins in it, but when we go in, we find that the deeper we go, the lower the temperature of the cave, there should be some special veins in it."

Ulvona also did not reserve any reservations to tell the things in the cave, and Johannes's face became more and more stern, when Ulvona said that it was dug from the rock wall, Johannes nodded and told her with certainty: "This is the frost crystal." ”

"Frost Crystal?"

Urvona's voice carried a hint of doubt, as the hero of the dark dragon creation zào, she didn't know much about this, compared to Johannes, she knew much about it.

"I'll show you a record of this kind of thing."

As he spoke, Johannes had already led Urvona to a room facing a large pile of books, some of which Johannes had brought from the family, and the other part that Surin had "borrowed" from the library.

"This is it."

From a pile of books, Johannes found the one he wanted, and after a quick flip through it, he finally found a record of the frost crystal.

"Frost crystals, this is the most special kind of mineral vein, because they are not naturally generated, because this special crystal is actually the body of a living being."

When Johannes said this, he paused, noticed that Ulvona's expression had not changed, and continued to read.

"In the former battlefield of the gods, there is a group of special creatures who have joined the war, they are called frost giants, this kind of creatures as a branch of the titan family, they have frost condensed bodies, this kind of creatures were all wiped out by the gods in the war of the gods, and their corpses, sinking into the ground, turned into frost crystals."

Closing the page, Johannes took a deep breath and said, "This is a very rare ore, we must mine them all as much as possible, but we must be prepared to keep warm when mining, otherwise it is likely that a large number of kobold diggers will freeze to death in the veins." ”

Johannes's words are not an exaggeration, the Frost Crystal Vein is actually the corpse of the Frost Bureau, and among the corpses of these guys, there is also an extremely terrifying cold air, which will be released when mining, turning a surrounding creature into an ice sculpture.

"I see."

Urvona nodded and turned to leave, she had already begun to prepare plans to mine the Frost Vein, and Johannes looked at Ulvona's departing figure, and there was a hint of resentment in her eyes. (To be continued......)