When the system reaches the fourth level, the waiters can also summon wooden fishing boats and stone arrow towers, but there is no need to worry about these things, except for the necessary manpower left by the waiters to summon housing, the rest were all sent by Zheng Feng to explore mineral deposits. Now he found that his gold resources were far from keeping pace with the growth of other resources.

In fact, the defense tower was already in existence at the second level of the system, but at that time, the defense tower only had a watchtower, which was just a simple and relatively tall wooden shelf, and there was still a human class on it to be used as a lookout, so Zheng Feng didn't plan to build this kind of thing at all, it was really useless.

Although the current arrow tower should be somewhat useful, it is not very useful, because the explanation of the equipment is that this kind of arrow tower also needs to have an archer on it to use the bed crossbow placed on it. So for the time being, Zheng Feng doesn't plan to build this thing, not to mention the working hours of the waiters, and it will take up a lot of shooters, so let's wait until the situation is in the future.

In addition to these things, there are also two so-called non-practical buildings in the second phase of housing. That is the mansion and the castle, the mansion needs a thousand tons of stone, a thousand tons of wood and a hundred taels of gold, and the castle needs 50,000 tons of stone and two hundred taels of gold.

Hearing that there are such buildings in the system, Zheng Feng was quite surprised, isn't this kind of thing completely a villa-like existence, without any military role, purely a luxury for the nobility. However, Zheng Feng was stunned, so he asked the waiter standing on the side to go to a better place in the cottage to build an ancient castle first. For such a long time, the heroes all live in private houses, or camp outside, and this time there is finally a more suitable place to live.

After talking about these ordinary things, let's talk about the Hall of Heroes, the heroes of each level of the Hall of Heroes in the middle section are double digits, and basically they are level seven as soon as they come out, and now there are not so many resources to recruit them all.

Therefore, Zheng Feng asked the two butlers to wait until the large warehouse summoned by the waiter was completed, and then they would upgrade it first. As for Xiaobu, who also stayed in the cottage and didn't go to suppress the bandits, we have to wait and see, the current resources are only enough to upgrade a seventh-level hero, and we have to take a look first. And the two housekeepers are only level five now, and they are only level six when they are upgraded to one level, and they don't consume much resources, so they can be upgraded first.

Since the heroes could not be embodied for the time being, Zheng Feng asked Gu Gu again what the exclusive items of the fourth level of the Commander's Mansion were. As a result, Gu Gu told him that the fourth level of the Commander's Mansion could manifest two parts, one part was still equipment, and it was a complete set of armor and battle robes. This set of equipment is divided into eight pieces, including a helmet, cuirass, abdominal armor, arms, legs, and a battle robe. Combined, it is called the Eternity Set, which consumes 40 million tons of metals and 4 million grams of rare minerals.

This is a set of equipment based on defense and auxiliary bonuses, Zheng Feng wants to embody them as soon as he hears that it is a complete set of protective equipment, and the things that save his life are the most important at any time. But there isn't enough metal right now, so there's no way to show it for the time being.

Zheng Feng, who was a little disappointed, asked Gu what was another part that could be embodied, but he felt that since it came out of the same level, it shouldn't be able to be built, so he wasn't very interested when he asked, and it was useless if something couldn't be made.

But Gu Gu told him again that this part can really be manifested now, and that this is not an object but a person. This part is twenty maids, each of which requires an average of 500,000 tons of grain, 500,000 tons of metal, and 50,000 grams of rare minerals.

Hearing this answer, Zheng Feng was stunned again, what is this, maid? So he asked Gu Gu in a daze, what are these maids doing? As a result, Gu Gu told him that the maids were the maids, and their job was to serve Zheng Feng, the master, including serving his daily life, protecting his safety, and sleeping in the bed.

Zheng Feng was really stunned at this time, he really didn't expect that the system even had this kind of welfare, not only providing him with the army and strength to dominate the other world, but also his personal problems could be solved, which was really unexpected.

"What? Say it again. When the word "waiter" came into Zheng Feng's head, he thought he had misheard, and asked Gu Gu again to make sure that he had not heard it wrong.

Just when Zheng Feng was happily in a daze for this sudden news, Gugu's voice came into his head again, "Master, the maid needs enough resources, do you want to manifest it." 'Damn, do you still need to ask about this, Zheng Feng immediately told Gu Gu categorically, and immediately began to manifest it now.

Okay, some people say that if you don't see meat for three months, even the sow will race the sable. As for Zheng Feng, he hadn't seen a female creature for a year and a quarter, not only were those heroes and troops all male creatures, but even the mount Xiao Jin was also a stallion.

Now there are female creatures in the Commander's Mansion, and they are also their own exclusive maids, as if they can do anything with them. Can Zheng Feng not be excited, so he can't wait for a moment now, and simply explained to the two housekeepers to clear the territory of this cottage, and he himself immediately rode Xiao Jin to the base camp and ran back.

It took two days to get from the base camp to the cottage on the outskirts of the mountain, and it took less than an hour to run all the way back to the base camp from the cottage. Xiao Jin's full speed on the ground is more than twice the speed of sound, even if he runs between mountains and forests, the speed is only one-tenth of the full speed, and it takes less than an hour to travel more than 100 kilometers.

Hurriedly returned to the Commander's Mansion, the current Commander's Mansion is larger than the original, but the undetectable part is still more than ninety percent. Entering the hall on the first floor, which was a big circle larger than the original, Zheng Feng looked at the empty floor in a daze, he was indeed too anxious, the maids were revealed, at least until the evening, he came back too quickly.

Okay, Zheng Feng scratched his head, he was indeed too anxious, but since he was back, let's take a look at the current Commander's Mansion first. Zheng Feng walked up the stairs, the hall became larger, and the stairs became longer, and now the hall is three hundred square meters, and the height is equivalent to two floors.

To the rest area above, it has also become larger, and now the rest area is divided into two floors, each floor has the appearance of 300 square meters, in addition to the larger kitchen and several more bathrooms and toilets, there are twenty large and small guest rooms alone, as well as several living rooms and a large conference hall.

After walking around, Zheng Feng came to the top control room again, and this main control room also became a little bigger, but not as big as the lower part. Zheng Feng looked up and down, left and right, and found a small object on the large table in the center of the main control room. Walking over and picking it up, it looks a bit like a mobile phone, ten centimeters in length, a black metallic outer ring on the periphery, and a piece in the middle like a mobile phone screen.

Looking at this thing, Zheng Feng asked Gu what it was. Gu's answer is that this thing is the sub-board of the main control room of the system, which can be shared with the detection function of the main control room, and this sub-board itself also has a similar detection function to the commander's office, but the detection range is only 50 kilometers in radius.

Eh, this is a good thing, Zheng Feng thought to himself, isn't this a mobile main control room, similar to radar. Wherever you go in the future, you can issue orders to your subordinates within this range at any time, hehe, Zheng Feng is quite a bit of a thing in hand, and I have a feeling in the world. With this sub-board by your side, you can also strategize and win a hundred miles away. That's right, it's a hundred miles away, and a radius of fifty kilometers is a hundred miles away.

Fiddling with this main control board for a while, this thing is still very convenient, when it is the smallest, it is the size of a 10-centimeter-long mobile phone, and when it is the largest, it can be expanded into a large screen 50 centimeters long.

Although it is not like in the main control room, you can see multiple scenes at the same time, but this sub board is also very convenient to switch between different scenes, because it uses brainwaves to operate, which is similar to the tool. Zheng Feng only needs to put a finger on the connection point of the sub-board, and he can use his mind to operate it.

Fiddling with the sub-board for a while, he ordered an attendant to summon a large warehouse not far from the barracks, and asked Jin to upgrade it in the hall of the Commander's Mansion. Zheng Feng's exclusive items can be upgraded in the Commander's Mansion, and other units must be upgraded in the large warehouse.

Xiaojin's upgrade requires 10 million tons of grain, 5 million tons of metals and 500,000 grams of rare minerals, although it is a lot, but the current resources are still enough. In addition, the previous maidservants also consumed 10 million tons of grain, 10 million tons of metals, and 1 million tons of rare minerals. Now there are more than 15 million tons of metal resources left, but the least is gold, which is only more than 2 million taels.

Shaking his head, Zheng Feng thought to himself that it seemed that he would have to do business in the future, so that he could get the gold and silver from the outside into his pocket. After telling Xiao Jin to go out to play by himself after upgrading, Zheng Feng went to take a nap first, and he was the only one in the entire station now, and there was nothing to do except sleep.

This sleep slept until night, Zheng Feng got up and immediately went downstairs to wait for the maids to come out, he was really a little curious, what kind of maids would the system give him. After all, the system itself is not a living thing, let alone a human being, can its aesthetics conform to Zheng Feng's preferences? In case a group of dinosaurs emerge in the system, does Zheng Feng still want them to sleep?