Due to the lack of drainage capacity, the caves here are all above the water table, so there are very few duplex structures on top of each other, and it is easy to draw a plan. Pen ~ fun ~ pavilion www.biquge.info and almost all the hills have been dug out of the mines, so the mines here are 'a group' and 'a group' - each small hill is a group of mines, countless groups of mines, forming the entire underground world.

The kobolds now occupy a small corner on the west side, about a dozen mining caves (a hill is a mining cave group), almost all of which are depleted of minerals, and there are still some suspected ore veins, which are also poor ores such as pyrite. Because of the many connections between the mines, the map becomes a complex spider web.

Now that some of the dogheads are blocking useless passages and simplifying the underground structure, the short-term goal of Ushiida is to completely grasp the wind and grass of these twelve mine groups within a few days, and turn this place into a very stable rear.

Further afield, there are several roads that have been explored for a long time, but not all the tunnels have been recorded on the map. If nothing else, the enemy's lair is located at the other end of a tunnel......

Liu Jingtian is very confident in his dog's head reconnaissance ability: underground work is very dependent on lighting, even if it is a demon, most of the eyesight depends on light, so the doghead with infrared vision can show his skills, the only thing to worry about is that if the enemy's lair is too far, it will become a labor expedition, so how to play the ambush advantage of the dog's head?

On the other hand, the Eagle's Nest has also made new progress.

Xu Ping'an has been struggling with a problem, it is not difficult to build a one-handed crossbow, especially under the command of Liu Jingtian, he really made a big sponge body, the dog head is not short of manpower, and he has also caught a few obedient degenerates who are afraid of death, so now it is possible to produce iron, wrought iron, and 100 steel, so that small metal parts can be mass-produced.

But what's next? Zhuge Burst Crossbow or Bed Crossbow?

Of course, the Zhuge crossbow he envisioned was not the one on the earth, and that thing was quickly wound with one hand, how much power could the bow arm charge? The power was weaker than that of a one-handed crossbow, not to mention that the arm strength of the dog's head was only less than half that of a human.

He envisioned a heavy-duty model that would need to be operated by more than two dog heads and come with a tripod.

But in this way, it is better to go directly to the bed crossbow, buy the hardest bow and crossbow directly from the 'Brave Hill', and transform it into a winch crossbow for kobolds, which can directly produce a finished product, the disadvantage is that the movement is poor, and the rate of fire is slow.

After weighing it, Xu Ping'an felt that it was better to get something real, first bought a few hard crossbows with nearly 100 pounds, then changed them to bed crossbows with wheels, and on the other hand, he continued to test heavy Zhuge crossbows, and also divided a team to study the composite bow making process, and the worksheet was full.

Guan Renxiu began to learn magic from Tesfield under the prodding of his brother, in his brother's words: After delaying your studies for so long, you will definitely have to kneel when you go back to the exam, as long as you learn magic well, even if it is only level zero, you can also help a lot, such as using the secret method mark to write words on the pants that others can't see, and then use the secret method eye to read it, when the exam is ......

Finally, the almost forgotten village of Oak.

Calm has been restored here, there is a mess of 'Thousand Caves and Hills' next to it, the large army of the demon clan has no time to run here, and the small army is directly caught by the mercenaries and sold, and the buyers naturally use it to 'make dogs'.

Now, it's a fairly safe campsite, and the Eagle's Nest's never-ending need for supplies has even spawned a small caravan.

The Eagle's Nest, which has harvested a lot of supplies, is willing to buy the corpses of large demons at a good price, and also asks the mercenaries passing by if they can make all kinds of simple daily necessities, such as wheels, spinning wheels, and the like. Besides, Tesfil already had a lot of gold bars with him, so even the 'Hill of the Brave' began to secretly sell demon corpses here.

With the kobold supported by a simple bed and crossbow, the courage is getting bigger and bigger. Since this thing is not easy to move, it is better to place it in a few key transportation arteries. With these crossbow-mounted strongholds as the core, new fortifications and warehouses were built, and it became a new base for attack. Two squads of combat squads are moving around these strongholds.

At the same time, a group of cannon fodder dog heads began a new project - several tunnels of high quality began to be excavated, and the level ground was covered with wooden planks to facilitate the movement of bed crossbows. They will tunnel several forward strongholds together, which will make it much easier to mobilize large armies.

On the Eagle's Nest side, the progress of the compound bow is a little slow - the glue boiled out of fish bladder and animal skin glue needs to be experimented, and the coagulation speed is also very slow, not to mention that everyone has to explore the process by themselves, so the bed crossbows that can be provided are all simple single bows, but Xu Ping'an expressed cautious optimism.

It won't be long before an iron tire bow can be supplied. Later, you can upgrade to a compound bow.

Although there is a lot of good news, Liu Jingtian, who is not satisfied, feels that the Eagle's Nest seems to be stuck in a quagmire, and the progress has slowed down greatly, and he even suspects that there is a mistake in the way of expansion.

That's a terrible slowness, and according to Tesfield, it takes at least ten years for the new generation of kobolds to reach adulthood.

I had no idea, so I had to come to Xu Ping'an to see if there was any new progress in logistics.

Liu Jingtian: "I've been so busy lately, Tesfil has to go to Oak Village to trade all kinds of supplies. The two middle school students were learning magic. You're in full swing here, too. But why is population growth getting slower and slower? ”

Xu Ping'an: "What have you been busy with lately? How many dog heads are there now? I have discovered a new resource." Those caterpillars you brought out of Oak Village. Do you remember? The stuff they have on them is not actually poisonous at all, it's fluff, and I'm organizing the dog's head to learn weaving techniques, and now the bowstring has raw materials. ”

Now, the demon caterpillars that are still stocked in a pit are also on Xu Ping'an's radar, they can live by eating grass, and they can grow fur on their bodies, Xu Ping'an even wonders if they are sheep.

Liu Jingtian: "I'm busy exterminating the guerrillas, and they're getting more and more cunning now. The big guys don't come out anymore. Now it's all the kind of 'little fireball demon' that can drop fireballs and teleport, which is quite troublesome. There are less than 300 dog heads, and most of the extra ones are summoned by purchased corpses. ”

Xu Ping'an: "Fight the guerrillas? What are you kidding! We are not superior in numbers, and even on the earth, encircling and suppressing the guerrillas is a worldwide problem!"

“...... Well, I also know that it's silly, but I don't even know where the main forces of the enemy are. You can only explore the map first. ”

"When you say that, I have an idea. We've been ignoring the logistics of demons before. There's no way they can't go without eating or drinking. If the weapon had to be built little by little, it would be impossible for the Thousand Caves and Hills to support such a large group of demons here. There must be their logistics department somewhere, and of course it is possible to rely on their transport team to support the logistics!"

Liu Jingtian struck with his fists and palms: "It's a good way! And I can fly to the sky to reconnoitre!"

"Wait, that's too dangerous......!

"Rest assured, I've been practicing flying these days. I can't talk about fighting, I can't talk about running away, hehe!"

With new ideas, many previous phenomena have new interpretations.

The first few ambush teams had transported ore, but very little grain, and it was clear that they were trying to transport it to a nearby processing site, and possibly a warehouse.

Now, Liu Jingtian's flying skills are already very flexible, and a short sprint is enough to shake off all the monsters. Not to mention that he also has a transformation ring. As long as you don't get encircled, you can definitely get out of the way.

After three days of continuous reconnaissance, there were several waves of demon bats and gargoyles to avoid the pursuit of several waves of demon bats and gargoyles, Liu Jingtian found that there were many demons and degenerates in the east, and there were many rut marks of carriages on the ground;

The south is calm.

A staggering number of flying creatures are found in the northern part of the Thousand Caves Hills.

This is also confirmed by the kobolds' reconnaissance operations these days: there are many bats in the north with occasional guerrillas, there are many guerrillas in the east, and there are a lot of cobwebs and all kinds of nasty insects in the south.

Liu Jingtian is in a dilemma, wanting to attack the eastern mining area from the underground, the road is long, and there are endless demonic guerrillas. If you start from the ground, you will most likely be killed by the flying demon without leaving a piece of armor. Not to mention that the kobolds' ability to fight in the plains is close to zero.

It seems that there is only one option, from the south and north directions of the underground, bypassing.

I went back and scratched my head on the map for a long time, the north is the bat area, the south is the unknown area, and the east is the demon area, and after some calculations, it is better to kill the enemy in the north first, there are many wings there, this is the air force plus airborne troops, and it will be quite troublesome to keep it.

So, at the sound of an order, the kobolds who were blooming on all sides shrank in an all-round way, and only a few strong strongholds remained on the front line to "light up the map", and the large army began to prepare for action.

Target: Bat Zone!

The main force of the kobold is still the 9 squads and a company, and they are advancing along the existing mines, fighting with the annoying guerrillas to fight bandits, because there are more ballistas that can be pushed away, and the harder enemies can also gnaw hard, so the combat efficiency has increased greatly.

Because of the acquisition of a large number of demon corpses, the cannon fodder dog heads of the miscellaneous troops have increased by more than thirty slightly, and they have worked hard to repair the tunnels, most of them are blocked, a small part is trimmed, and the rest is used by humans of normal height, and the rest is transformed into dog heads - hidden, narrow, making it difficult for the enemy to use, and of course, the most important thing is that there are enough escape routes!

The devil's guerrillas fought countless times with the dog head a few days ago, and the doghead's tactics were: there must be an escape channel around before fighting the other party, and if you fight, you can run away and harass if you can't beat it, and you take advantage of it at the beginning.