The tree of life will mature after a month and a half when the problem is solved. At that time, you can get more spring of life, and even use as much as you want.

The ugly questions were also answered, so that he could finally let go of the doubts in his heart.

"Keane, didn't you say you'd be back soon, why did you go for so long?" and not long after the return trip, she met Perrin, who was in the process of knowing the distribution of the city's defense troops, although it was a bit exaggerated for the general to do this kind of trivial matter, and he could have ordered others casually.

Seeing that Pei Lin was quite enthusiastic about military power, Jia Zhengjin couldn't help but sigh. However, the wood was already in the boat, and he was helpless: "I was able to come back very early, but I met Simon halfway, so I talked a few more words." ”

"Oh!" Perlin nodded indifferently, "I have reassigned the patrol and defense formations in the city, if you have any questions, you can tell me directly." ”

"Yes. Jia Zhengjin nodded and said, "Then I won't disturb your work!"

"Hmm!" Perlin bowed slightly, her gaze falling on the ugly monster, "It's not an illusion, it seems to have grown up a little?"

Hearing Perlin say this, Jia Zhengjin thought to himself that your observation was keen. But he said, "Yes? I didn't pay attention!"

Regarding Jia Zhengjin's answer, Pei Lin did not doubt it: "Elf princess Xian Jill and Tina, Tina has already arranged everything. Sengil is currently meeting with Claude, so you'd better not bother. ”

When the fiancé meets, of course Jia Zhengjin will not be a light bulb. Claude now has a big pimple in his heart, and it is difficult to face Singier. Therefore, it is up to Sengil to work hard to resolve the knots in his fiancé's heart and restore his self-confidence. At a critical moment like this, others naturally don't bother!

The official system has just been established in the city, and not only Perin, but also other civil and military generals are very busy, which is very different from the past.

With the new authority, they don't need to be instructed to do anything, and everyone works hard.

Jia Zhengjin suddenly found himself idle. Although there are only a few civilian, military and military generals, after all, the scale of the Holy Dragon City is not large now, and they are enough to maintain the normal operation of the city.

He didn't need to meddle in the affairs of the city, and he had more time for himself.

The power system, lathes, machine tools, machine shops, and science laboratories are all built, and the extra skill point goes directly to the science laboratory, turning out the learning pages of all science and technology, and lighting up the level 1 of transportation technology.

Finally, the blueprints of motorcycles that were obtained a long time ago have become manufacturable!

Although there are already many war horses in the Holy Dragon City, there is no shortage of army mounts. However, war horses always have physical limitations, and they have to rest when they are tired of running, while motorcycles can continue to move forward without fatigue as long as they have enough gasoline.

In the uneven wilderness, motorcycles are not as fast as war horses. But on this section of the road from the Holy Dragon City to the fortress, Jia Zhengjin had already asked the kobold craftsmen to repair it very flat!

Also on the flat road, the motorcycle and the war horse set off together, and they have an absolute advantage!

Jia Zhengjin, who misses modern transportation very much, after unlocking the transportation technology, hurried to the factory, made motorcycle frames and motorcycle heads through furnaces, and then brought various materials to make cushions, car engines, car batteries, and motorcycle locks in the tool table, machine tools, and machinery factories.

There is no lead ore in the city for the time being, but fortunately, there are a lot of lead mines in the mineral resources brought by the elves from the dwarves. This also allowed Jia Zhengjin to successfully manufacture car batteries, and eventually make complete motorcycles take shape.

But after the car was built, Jia Zhengjin found another problem.

He meowed, he forgot, there is no gas now!

He hadn't found the oil shale veins yet, so he couldn't make gasoline for vehicles! There were no gas stations in the other world, which was embarrassing!

Hurriedly rummaged through the warehouse again, hoping to find oil shale in the mineral resources of the dwarves. However, to his disappointment, people in this world don't know what to do with oil shale even if they dig it, so they don't store it. Not to mention selling it as a mineral.

As a result, Bai was happy, and Jia Zhengjin really wanted to cry without tears.

How depressing it felt to look at the first motorcycle built by the factory and become useless waste without gasoline!

However, he did not give up, dismantled the motorcycle and stored it in the virtual backpack, left the factory, and after some searching, found General Isa, who was studying the farmer farming in Holy Dragon City somewhere, and ran over to call her quickly.

"Lord Keane?" Isha was a little puzzled by Jia Zhengjin's sudden arrival, "Is there anything wrong?"

"It's a little thing!" Jia Zhengjin beckoned her to a quieter place, "You should have been to the dwarven mines, right?"

"No!" Isha shook her head when she heard this, "We elves don't like such a dirty place." ”

Then you like to be friends with such a dirty lover! Jia Zhengjin despised it in his heart, don't they drill in the ground every day and mine in places that you think are dirty?

But this kind of thing must not be said to the face: "That...... The dwarves have dug up all kinds of strange things, you should have seen them, right?"

Isha thought for a moment, nodded and replied, "The dwarves like to store all the minerals they dig up together, and then store some strange things separately. I've been to the dwarves many times, but I've had the chance to see them a few times!"

"That's good!" Jia Zhengjin was overjoyed and hurriedly asked, "Then have you ever seen a mine called oil shale?"

"Oil shale?" Isha looked puzzled, shook her head and said to Jia Zhengjin, "I've never heard of it!"

"It's that kind of special stone mineral ......," Jia Zhengjin said, describing the characteristics of oil shale with his hands in a dance.

Isha shook her head after hearing this: "I have never seen it before!"

Getting this answer, Jia Zhengjin couldn't help but sigh. However, he still held on to a glimmer of hope: "Are there any particularly strange and interesting minerals dug up by the dwarves? If you don't mind, can you tell me more about it?"

Jia Zhengjin's request was not excessive, and Isha agreed directly without thinking about it: "Since Lord Kean is interested, then I will tell you about the minerals of the dwarf race!"

"Come!" Jia Zhengjin hurriedly sat down face to face with Isha and listened to her description in detail.

Isha doesn't really know much about minerals, but she presents them in her own way based on what she has seen and heard. However, to Jia Zhengjin's ears, it is still quite a specific image. Basically, what she said was very easy to understand and guess the type of mineral.

Although Isha talked a lot, there was not a single mineral that matched the oil shale. But in the end, when she said that the dwarves had dug up a kind of black demonic water, which burned when it caught fire, they suspected that they had dug through a demon's sleeping place. Jia Zhengjin stood up suddenly, and he immediately thought that it was definitely not the water of the Demon Realm, but oil!

Petroleum can also be refined into gasoline in an alchemy laboratory......