Crushed Mine is an underground city built in the mountains, and skilled gnomes have turned it into a spectacular underground paradise. Despite the fact that these gnomes are short, the city streets they dug out are quite wide.

And these guys also put a thick layer of metal on the walls, ceilings, and even the floor. This is simply unheard of in the continent of Akara, where the steel-producing capacity is not developed.

"Paving the road with steel plates, it's a shame that you guys came up with it." Lin Wen touched the wall and said to Haina, this cold and hard touch is obviously metal.

"Not really." Listening to Lin Wen's words, Heiner explained: "It's just a kind of concrete that looks like metal. We melt the stone and the slag together, and when it solidifies, it becomes like this. Although it looks like steel, the hardness and toughness are completely substandard, so we simply use this thing to pave the walls and roads. Moreover, this material has good stability, which can fix the cave and reduce landslides. ”

That's a good building material.

All the mercenaries who came on a support mission were divided into twenty teams, and the other teams were tasked with moving freely and killing every caveman and petrified monitor lizard they encountered. Lin Wen's team has an additional mission: escort Hayner to the emergency shelter in Gravel and protect it until all intruders in Gravel are eliminated.

I have to say that this is a very important task, but it is not easy, because the number of gnomes in the city is related to how much the ultimate force mercenary group can profit from this mission.

"Heina, contact the gnomes in the city and tell them that help is coming." Lin Wen said to Haina.

"Okay." Heiner pulls out a dwarf communicator and begins to contact the emergency shelter in Crushed Mine. In a sense, the dwarf is the inventor of the mobile phone in this world, and it is the kind that does not have to pay the phone bill.

"Hey? Anyone? Are you still there? Heiner shouted into the communicator.

"Heiner? Oh my God, you're finally back! "There was a woman's voice on the other end of the communicator, and it sounded like she was tired." Found a helper? ”

"Found it, I'm here with them!" Heiner's excitement was palpable, "I'm in the storage room at the top of Shatter City, how are you doing?" ”

"All alive, those cavemen have been storming the defenses of the vault, today the second line of defense has been broken, now everyone is shrinking behind the first line of defense, if you are two days late, we will be eaten by the cavemen."

"Hold on, we'll be there soon!"

"Come over here, it's an old-fashioned elevator that will get us into the city very quickly." After hanging up the communication, Haina led the group to a small platform. Then he poked the controller in the corner, but the entire platform was unresponsive. "Uh...... There may be a while when I don't use it, it's a little glitchy, let me debug it a little. ”

Haina took out a dwarf saber from his backpack, first dismantled the shell of the elevator control panel, and then didn't know what this little man was messing with, the panel lit up all of a sudden, and then Haina pressed it on the control panel, and the entire platform suddenly shook violently, and then slowly sank.

"Prepare your weapons, brothers, we'll encounter cavemen when the elevator reaches the bottom." Lin Wen found through humanoid tracking that there were three strange humanoid creatures surrounding him and the others, which obviously could not be outside the rapidly descending elevator, and the only explanation was that they were guarding the exit of the elevator.

The bullet was loaded, the safety was opened, Lin Wen and the others were in a state of readiness, and Haina, who was standing on the side, also took out a strange-looking firearm.

"This is a gnome hot-wire gun I made, and it shoots extremely hot rays that are strong enough to pierce through steel plates." Seeing Lin Wen and the others looking at him, Hai Nayang raised the weapon in his hand and said.

Lasers? Hearing Haina say this, Lin Wen was a little surprised, it seems that the world has also mastered a lot of interesting things in its own way.

The elevator shook suddenly, and then stopped, and as the elevator door slowly opened, Lin Wen and the others also saw the three cavemen standing outside the elevator.

Cavemen are a species that has survived since ancient times, and legend has it that they were the first intelligent creatures in the world, and they are often encountered in some deep underground caverns. These monsters are usually two meters tall and have a strange appearance, with long hands and short legs, like a gorilla. Due to their long underground life, cavemen have an extremely sensitive sense of hearing, but almost no vision. Cavemen have particularly wide mouths, even stretching their cheeks open, and their mouths are covered with hard, sharp teeth that bite hard enough to crush rocks. Moreover, cavemen are a kind of creatures between stone and flesh, they do not die from bleeding, nor do they lose their combat effectiveness due to physical damage, and if you want to kill them, you must rely on extreme strength to dismantle them.

And the worst thing is that this group of monsters still lives in groups! For one reason or another, all the bullets that Lin Wen issued to everyone this time were armor-piercing bullets, specifically to deal with these cavemen whose muscles were as hard as stones.

"Fire!" Seeing the caveman waving his arms and rushing towards the elevator, everyone present immediately pulled the trigger. In a series of tongues of fire, the three cavemen seemed to have hit an invisible wall, and they flew backwards one after another, and their sturdy bodies were also filled with a large number of holes in an instant, and they were directly beaten into a sieve!

Cavemen have very tough skin, but they can't be as bulletproof as steel. The 7.62mm caliber full-power steel-core armor-piercing bullets that can effectively protect against sword attacks are not enough to see at the same level as the 7.62mm caliber full-power steel-core armor-piercing bullets, each of which can cause quite horrific wounds on the caveman's body. In just one shot, this group of cavemen were beaten all over the body, looking like a sieve, and they died of anger.

Looking at the tragic appearance of the caveman, Lucia couldn't help but exclaim. Lucia had seen Lin Wen use his weapon to kill enemies quickly, but she had always thought that Lin Wen's weapon should be some kind of exclusive weapon, and only Lin Wen himself could use it. It wasn't until she got the AK12 that Lucia found out that it could be mass-produced! And after using this weapon, Lucia felt that she fell in love with this feeling of killing, and with a snap of her fingers, the enemy was shattered by a storm of blows. Turning what was originally a laborious and dangerous battle into a pastime with just a snap of a finger.