Train Survival: You're really trying to survive!

Fortunately, this is another world, so oil won't breed mold.

Zurich and his team spent two full days collecting oil, finally stopping on the morning of the third day.

This time, they collected a total of 2000 barrels of oil. According to Shi Lei's analysis of the samples, the final result was that 1100 barrels of fuel oil could be produced.

With these 1100 barrels of fuel, Zuli and his team won't have to worry about fuel for a long time.

After collecting the fuel, Su Li thought the magic-powered water pump that Shi Lei had given her was quite useful, so she decided to trade with Shi Lei and take over the equipment. The traded goods were the substances left over from oil extraction.

Of course, the two were not of equal value, and Shi Lei made up for the price difference with other products.

The prop Shi Lei gave him was a blueprint.

[Mining Detonators]

[Iron Grade]

[An item imbued with the power of earth element, possessing remarkable effects on minerals. Because it utilizes magical shockwaves to disrupt the soil, it can be used even in oxygen-free environments.]

[This blueprint was drawn by player Shi Lei]

[Consumes: 1 Earth Elemental Shard, 2 Coke, 1 Resin; Makes 10 servings]

"Knowledge is power," Su Li remarked, looking at the last line of text. The fact that Shi Lei could continue drawing these blueprints meant he could continuously trade them with others.

However, Su Li is not bad either. Many of the small props he makes have good effects, but he has never wanted to trade them.

After the transaction was completed, the train departed again.

This time, they were heading east, to the east of this asphalt river, where there were many spots of various colors. Zurich was going to see what was going on.

The train traveled more than 600 kilometers and finally arrived at this patch of ground covered with discoloration.

The train stopped; it was already noon, time for the creature to eat.

The creatures in the original body were extremely rude; they were terrified by the sight of the train's shell and the noise of its movement. However, when Su Li and the others came out and saw that they didn't have hard shells and weren't very big, some of the creatures began to get restless.

Then Su Li set another fire and collected a batch of supplies.

After driving away the native creatures, Zurich finally had the chance to take a good look at the colorful ground.

These things were buried underground. Su Li estimated the distance to be about 10 meters deep.

"Lily!"

"coming!"

Sun Lili responded and then drew a circle in the air with her right hand.

Then, a golden substance encased in green gel appeared in Sun Lili's hand.

Su Li broke open the outer green gel and used an identification technique on the thing.

Titanium ore

"Is this a mineral?" Su Li looked down at the ground. This area was full of this kind of golden ore. "That's strange. Aren't titanium ore supposed to be silvery-white?"

Ivan leaned closer and took the ore from Su Li's hand. "It's a titanium nitride ore with very high purity."

Su Li got excited and called out to Sun Lili, "Lili, take a look at the other colors of minerals."

Sun Lili took out several ores and asked Ivan to identify them.

"The light brassy-colored ones are pyrite, the dark gray ones are chalcocite, the grayish-white hexagonal crystals are aluminum nitride, the lead-gray cubes are platinum sulfide, and the silver and gold ones are elemental silver and gold with very high purity."

Su Li looked down at the ground and laughed heartily, "We've got X-ray vision now."

Because the 'soil' of this world is a transparent green gel, under the control of the system, the spawned ores have nowhere to hide underground.

"This is a real windfall. I estimate that this time, it will help us gather all the regular metal ingots needed to upgrade to level 7."

Su Li looked down at her feet. Besides the ore Ivan had mentioned, there were all sorts of other ores, including elemental ores. The earth seemed to have been dyed by an overturned palette. Through the translucent green gel, she could see colorful veins stretching for kilometers ten meters underground. The crystals refracted a mesmerizing halo under the twin suns, like crushed rainbows scattered underground.

Ah, the beautiful rainbow mine, just like Zurich's beautiful mood.

"Lily, detonate!"

"Okay~"

At Su Li's command, Sun Lili immediately activated her spatial power and threw out all the prepared mine detonators.

A few seconds later, all the mine detonators exploded, blasting a hole in the ground.

Then, Sun Lili opened the portal.

Sun Lili chose a location right in the center of each mineral vein. After blasting open a cavity, they cleaned out the shattered ore and gel inside. Then, Su Li and the others placed a pulse-type mining machine inside.

As the mining machine started, concentric circles of yellowish-brown light spread outwards, beginning to vibrate the ore.

The ore kept breaking apart, turning into fist-sized pieces of rock.

Taking this opportunity, Zuli compared the advantages and disadvantages of the two.

The advantages of blasting detonators are obvious: a large blast radius and extremely fast speed. In just a few seconds, they can create a crater with a diameter of 10 meters. All the ore within this crater will be destroyed.

The downside is that it's a consumable item; using it too often will continuously consume earth element fragments. Furthermore, this blasting radar is unsuitable for mining black iron-grade elemental ores. The earth element explosions will activate the elemental power within the ores, causing conflict and wasting the ore.

The pulse mining machine can mine any type of ore with almost no loss.

The downside is that it's a bit slow and requires some waiting time; its efficiency is much lower than that of mining detonators.

At this point, some students might ask, "Teacher Su, Teacher Su, is there a way to mine with low consumption, low ore loss, and high speed?"

Yes, brother, yes.

Please welcome our good partner, Ivan Mining Machine!

Sun Lili patted her good brother-in-law Ivan, and Ivan was instantly teleported to the mine.

Ivan pursed his lips, rolled his eyes, and after a long pause, finally managed to utter the word "Grandet." Then, resignedly, he activated his new skill: Shockwave Aura.

A halo emanated from him. Ivan adjusted the halo slightly, sacrificing some of its intensity, to increase its range, based on the strength of the ore beneath his feet.

The halo suddenly expanded to a range of 200 meters.

Then, an invisible shockwave began to spread throughout the entire halo area.

This halo was originally developed by Ivan based on the pulse-type mining machine for mining. It was a perfect match, like a turtle finding a green bean.

The old slave owner, Sun Lili, watched her brother-in-law mining below.

Good lad, his aura skill has low cost and wide range, and he's a Guardian, so he's incredibly resilient. Even if something unexpected happens down below, like being attacked by underground bugs, he can hold on. With Air Sugar, we don't even need to provide extra oxygen.

Such a good mining tool, working a day consumes the equivalent of three meals a day, and at worst, you can add a hot kiss from your sister.

Wow, where can you find such a useful ox or horse!

Look at him now, surrounded and attacked by 10 bugs, he can still mine while being attacked, amazing!