Survival: Fighting floods from a thatched hut.

Red stone iron ore, green stone copper ore.

This was his vague memory, and after careful examination, he found that it was indeed true.

I didn't expect that this was a natural iron ore cave.

After walking for thousands of meters, Zhang Chi felt that the altitude was getting lower and lower, and perhaps they were already underground.

Zhang Chi picked up a lot of iron ore on the ground, and even saw a lot of iron ore embedded on the walls of the cave.

It’s just a little strange that there are only iron ores scattered along the way, and almost no broken stones can be seen on the ground.

After walking a few hundred steps, the height of the cave became lower and lower.

Zhang Chi was even squatting as he walked forward, which meant that his physical strength had become extremely strong, otherwise he would not have been able to hold on for long.

When the height of the cave became less than one meter and he was already hesitating whether to continue moving forward, a ray of light suddenly appeared in the cave ahead.

A look of suspicion flashed in his eyes, and he turned around to signal Dahuang to be quiet.

Seeing it nod, Zhang Chi extinguished the torch and tiptoed forward.

In front of the exit, Zhang Chi quietly stuck his head out and looked at this huge natural cave.

Not counting the passageway leading in, the entire cave is as big as a football field.

There is no light source near the exit, but a huge amount of iron ore can be vaguely seen.

On the other side, there is a small section of wall that glows.

The brightness of the wall was not very high, similar to moonlight, so it only illuminated half of the cave.

With the faint light, Zhang Chi looked around the cave.

In the very center are some rubbles, with rubble piles of varying sizes appearing irregularly around them.

He even saw something that looked like wood in it.

Under the glowing stone wall in the distance is a patch of plants.

He took out the detection orb and wanted to see if there were any living creatures here, but found that this place was out of the detection range.

After thinking for a while, he quietly signaled Da Huang to observe, and Da Huang poked his head out from behind Zhang Chi.

It scanned the cave, and soon its pupils shrank, its gaze fixed on a dark spot.

It patted Zhang Chi's back calmly.

Zhang Chi turned his head in confusion and looked in the direction Dahuang was looking.

In the darkness in the distance, there was a dark shadow moving.

There are actually living things in this cave!

Although he could see some dark shadows, Zhang Chi's eyes did not have the ability of night vision after all.

So he signaled Dahuang to retreat, and they retreated a full hundred meters.

The man and the leopard communicated in a low voice.

"You mean, those are big rats?"

"How many are there?"

"What? Over a hundred?"

“No premium grade is fine.”

After repeatedly confirming with Dahuang that there were no other living creatures or high-quality beasts, Zhang Chi took Dahuang back to the cave entrance.

This time, they were much more arrogant.

Zhang Chi lit 20 torches at once and threw them all over the cave, paying special attention to where the rats gathered.

"Da Huang, you guard..."

Zhang Chi had just said half of his words when he saw Da Huang rush out.

These rats are indeed very large, about the size of a medium-sized dog.

If a normal cat saw them, it's hard to say who would eat whom.

But Dahuang has been following Zhang Chi recently, and has good food. He is now nearly two meters tall and is taller than Zhang Chi when he stands up.

It's like a cat entering a pack of rats, or a high-quality cat entering an ordinary pack of rats. There's no need to say what the scene will be like.

Zhang Chi stood guard at the entrance of the cave to prevent the mice from escaping and also to let Dahuang play for a while longer.

Taking out the survival manual, Zhang Chi examined the big black rat that he was stepping on.

Stone Rat

Strength: Average

Evaluation: This mouse likes to eat stones and can also eat soil. It is timid, grows very fast, and has delicious meat. In addition to eating and drinking, its biggest hobby is mating, so it is also called pig rat. 】

The identification information surprised him a little.

Is this thing eating dirt?

It eats dirt, grows fast, and tastes good.

Isn't this the perfect meat dish?

Isn’t this more cost-effective than raising pigs?

And if the quantity is large enough, it can even be used for mining.

He had figured out before that there was not a single stone on the road here, only the iron ore was left there.

It turned out that the stone was eaten by a stone rat.

Maybe the entire cave was dug by a stone rat.

If he had a stone rat mining team, wouldn't he be able to just wait and pick up the ore?

Zhang Chi, who was attracted by the stone rat, turned around and looked at the stone rat in the cave who was being horribly tortured by Da Huang.

In just a few minutes, the number of stone rats was reduced by more than half.

Zhang Chi felt extremely distressed and quickly shouted:

"Da Huang, stop it."

Da Huang looked back in confusion, not quite understanding why his master, who always liked to kill whole families, asked him to stop.

"Just knock them out. Be careful and try not to lose any limbs."

Although Dahuang was confused, he had to listen to his master.

Now that the master has spoken, let’s not play anymore.

It swung its claws extremely fast, and when its invincible meow fist was released, no stone rat could escape the fate of being knocked unconscious on the ground.

Except for a few unlucky ones who bumped into sharp rocks, all the other stone rats fainted.

Zhang Chi put all the dead stone rats into his bag and disassembled them.

It takes 80 stone rats to obtain 7 wooden treasure chests and 1600 units of rat meat.

The drop rate of Stone Rat's treasure chest is extremely low, but the meat production is just the opposite.

The manual breaks down a wild boar weighing nearly a thousand pounds into only one hundred units of pork.

A stone rat weighing several dozen kilograms can have 20 units.

Raising stone rats is indeed much more cost-effective than raising pigs.

Take out the rope, tie up all the stone rats simply, and then throw them into the bag.

After the dimensional backpack is upgraded to the excellent level, in addition to the space being expanded tenfold, it can also hold living things.

This is the first time he has used this feature.

I glanced at the time and there were less than 20 minutes left until dark.

At his and Da Huang's speed, it would only take eight or nine minutes to get home from here.

Ten minutes is enough.

Zhang Chi decided to take advantage of this time to explore the cave briefly.

As for the remaining two high-quality ones, we'll have to wait until another day.

There is no way, the daytime is too short and the rain is getting heavier.

Not only Zhang Chi, almost everyone in the channel is complaining about not having enough time.

Especially if they need to clear rocks from the river.

Zhang Chi came to the glowing wall as soon as possible and looked at the stone wall that was dark in color but emitting bright light.

【Xuanjin Lingshi

Grade: Excellent

Effect: Contains gold energy, can automatically absorb energy to replenish itself

Evaluation: A rare energy stone in the foggy world, it is the energy source for many weapons and facilities. When the gold energy is sufficient, its energy recovery is accelerated. 】

Energy stone?

He was not surprised that there was such a thing in the foggy world, but why did it look so familiar to him?

How come it seems like I've seen it somewhere?

Zhang Chi was sure that it could glow. He had never seen anything other than fire.

But the stone wall in front of him, whether it was completely black or had a bright white glow, made him feel very familiar.

Forget it, never mind, just dig it out first.

He reached into his bag with his left hand and pulled out a pickaxe.

Just as Zhang Chi was holding the pickaxe in both hands and smashing the black gold spirit stone, he saw the crossbow in his left hand.

The crossbow is completely black with a faint glow flowing through it.

and many more!

He seemed to remember that the Xuanling Arm Crossbow was called the Xuanjin Arm Crossbow before it was upgraded?!

Look at this bright white light, and think about the white energy arrows that you often shoot.

Real hammer!

The Xuanling Arm Crossbow, or the Xuanjin Arm Crossbow, was made of this material before it was upgraded.

No wonder the Xuanling Arm Crossbow can condense energy, and no wonder its energy arrows have such strong penetrating power.

Thinking of this, Zhang Chi’s pickaxe almost left an afterimage.

Large chunks of black gold spirit stones fell off the stone wall and entered Zhang Chi's bag before they even hit the ground.

After putting away the last piece, Zhang Chi looked at the manual and saw that it was more than a hundred units of Xuanjin Spirit Stone.

How many crossbows can be made from this!

Get rich!

This wave of harvest is almost catching up with the Star Iron Mine he saw during the assessment.

Zhang Chi was so happy that the corners of his mouth were almost stretched to his ears.

I glanced at the time and there were still fifteen minutes left.

Just when he was about to go home, Dahuang bit the corner of his clothes.

He looked at Dahuang in confusion, only to find that his front paws were pointing at a stone pestle in front of him.

Looking at the ordinary pile of stones about one meter high in front of him, Zhang Chi thought that Dahuang had discovered something good underneath.

After digging up the stone pestle, nothing special was seen, just a large mass of white stones with a rough surface.

Seeing Dahuang nod, Zhang Chi grabbed the stone with force, and five small holes were made in the stone by his fingers.

This feeling is...

Looking at his right hand, his five fingers were covered with white dust, and a slight burning sensation came from his fingers.

Is this lime?!

How come there is lime here?

After digging up the entire stone pestle thoroughly, he found that there was only one white stone mass made of lime inside the pestle, but there were also some other stones that were obviously formed after the lime reaction.

He stood up and walked quickly to another stone pestle not far away and quickly opened it.

Although no lime was found this time, half-refined iron ore and a lot of coal were found.

Zhang Chi was confused and puzzled. Was there anyone here before?

Or, was there once intelligent life here?

They can burn lime and smelt iron ore, which shows a high level of civilization.

At this moment, he suddenly remembered the plants that he had just ignored because he was attracted by the black gold spirit stone.

He had thought it was a weed before, but now it seems hard to say.

Identification.

Weeds

Quality: High quality

Evaluation: A rare high-quality weed with no edible or medicinal value. Because it is tough and difficult to chew, even herbivores rarely choose it as food. 】

Uh, it really is a weed?

But premium weed? Is this scientific?

Could it be that......

Zhang Chi quickly pulled away the weeds and examined the ground.

【soil

Grade: Excellent]

It turned out to be excellent grade soil, no wonder even weeds can grow to high-quality grade.

The area of weeds is not large, only about ten square meters in total.

Get out your shovel and start digging!

Although Zhang Chi dug nearly 10 units of soil today and ran dozens of miles.

But he didn't feel tired at all at this moment. Instead, he was as excited as if he had been injected with chicken blood. Sparks flew when the shovel poked the stone at the bottom.

In order not to waste a gram of high-quality soil, he simply shoveled away all the stones.

There was an afterimage of the shovel in his hand, which showed how fast he was shoveling the soil.

In the end, Zhang Chi harvested a full one thousand units of excellent-grade soil!

If Zhang Chi were to synthesize it bit by bit by himself, not to mention how much soil would be needed, it would take 11,000 minutes!

That is 183 hours, nearly eight days.

It didn't sound like a long time, but he had only been traveling for five days so far.

After collecting the soil, Zhang Chi came to the largest stone pestle in the center of the cave with satisfaction.

I didn’t think much about it before, but now after careful observation, I find that this stone pestle is actually a square.

It seems that this should be a house of this civilization.

Excavate!

In order to save time, Zhang Chi simply collected the stone pestle directly in his shoulder bag.

When he dug to the very center, he suddenly found a book!

I don't know how many years this book has gone through. It has become tattered and the paper it is made of has become somewhat hardened.

He didn't dare to open it, so he picked it up carefully and put it into the space for identification.

When Zhang Chi saw the identification information, his pupils shrank.

【Survivor Diary】

This is actually a diary written by a survivor like him? !

wrong!

This should be a diary written by a survivor long before him!