It took a total of ten days for Hopps to lay the spikes used for climbing to a height of about one person from the vein.

But here, he was stuck and could not climb any more.

Because I don't know why, the rock wall became extremely strong, and the long nails made of stainless steel could not be cut. He knocked with a small hammer for a long time, only to see Mars, and finally the tip of the spike was dull, and only a pit that would not be deeper than the half knuckle was cut.

“Is it already at the Mithril mine?” At dinner, listening to him talking about it, Sid said, “It’s rare for such a hard stone, but it’s not surprising if it’s Mithril.”

Hopps shook his head: "I managed to cut a rock and came back to see it carefully. It’s not a secret silver ore, it’s a stone, it’s just hard."

"How can ordinary stones be so hard?" Dudu curiously came over. "So hard stones, generally appear in the depths of the ground, should not appear here."

"Who knows..." Hopps sighed. "In short, I can't think of any way to come. I can only slowly grind my work. I don't know that the value of the vein on the cliff is not worth spending so much time. energy."

“Is the sample around? Let me see.” Dudu said, “I want to say stone, I am an expert!”

He is indeed not a bragging cow. Because of the excavation in the underground all year round, the dwarf kingdom has a unique understanding of various rocks. As a royal family of the Dwarf Kingdom, Dudu Hill is indeed an expert who knows all kinds of rocks and ores. In fact, he is also the only person in the exploration team who can distinguish between the innate secret silver and the acquired secret silver. But he has no interest in this job. Otherwise, he does not need to find the appraisal master...

Hopps, of course, took the stones with them, and immediately took out one.

Dudu took the stone and frowned at the first sight, revealing amazement.

“Hey?” he whispered, turning the little stone over and over and carefully studying it for a while, but his brows were getting more and more fragile. “The bedrock? Am I wrong? This thing should not appear. Here is it..."

"Foundry? What is that? Is it rare?" Hopps asked curiously.

Dudu shook his head: "Rare is not rare, but it should not be on the ground."

"What exactly is it?" Ruby asked, "If you are interested, let us give you a detailed introduction."

"Of course. When it comes to bedrock, we must talk about the structure of the earth in the main plane... In general, the earth under our feet is divided into several layers. The first is the soil layer, the rock layer below the rock layer, below the rock layer, There is usually a red hot magma. In most cases, exploration will stop here, because it is difficult to go down to the magma. But if you are lucky, you will occasionally encounter no magma. Then you will see the bedrocks - they are very strong, the crosses go up to Mars, and often need to use up their strength to extract a little bit." Dudu introduced it in detail, then took a sip of wine, and then said, "I Although I have not been to the magma layer below, I have seen the bedrock in the museum where the ore is collected. It feels like this."

Hopps nodded and asked curiously: "So what is the use of this bedrock?"

Dudu thought about it and asked: "Do you think it has any use?"

"...very strong, it must be appropriate to bring a building fortress."

Dudu laughed: "Ha ha! The strong person who can open the building rock to the base rock, he does not fight others, others will thank God, who dares to provoke him!"

Hopes thought about it, it is indeed the truth. The bedrock was so bizarre that it took a lot of effort to mine a little bit. If someone could mine a lot of bedrock and build a fortress with it, then the man’s ability was simply beyond imagination. Such a strong, who dares to provoke him?

By this fight, he also forgot to ask what other uses of bedrock.

After dinner, everyone went to rest, and Sid came to Dudu’s tent.

"What is the use of bedrock?" he asked, opening the door.

Dudu is silent.

"It's not an ordinary thing, right?" Sid went on.

Dudu still said nothing.

"This thing... should have a very special use. It's not only special, but important. So when you see it, it will be a bit sloppy." Sid said, "It can make you show that expression, it will definitely not just be ordinary. Stone."

Dudu did not speak.

"I don't want to say it." Sid sighed. "But I advise you to think about it. After all, a large bedrock is there, maybe someone will hit them. If they are wondering what to do, instead worse."

Dudu’s face was finally moved. He thought for a while and said, “Look up both Hops and Ruby, and they need to know about it.”

After a while, Hops and Ruby, who received Sid's message, rushed in. Because Sid especially emphasized the need to keep secrets, they all crept, and even a little louder voice did not come out.

After the four gathered in Dudu's tent, Dudu took out a magic scroll, activated the scroll, and a circle of blue light shrouded the surrounding space and covered them all.

"This can be safely talked." He looked a little relaxed, "don't worry about being eavesdropped by someone else."

"The stone called the bedrock is really so important?" Sid asked.

"If you want to know what you want, you need to make an oath first." Du Du answered, "Swear to the gods you believe in, you must keep a secret. If you violate the oath, you will not be able to go to the kingdom of God after death, but will fall." hell."

Sid, Hopps and Ruby face each other. After a while, Ruby shook his head and said, "I won't make such an oath. I don't want to know any secrets. You talk slowly, I go back to sleep. I have only happened tonight, no matter who asked, in short, I have been sleeping tonight, and I have not gone anywhere."

Said, he turned and walked out of the tent, not coming back.

Sid and Hops, look at me, I look at you, hesitate for a while, then each swears.

After they swear, Dudu, who has always been nervous, is relaxed and smiles.

"Since all of you have already vowed, then I can tell you this secret." He said, "I didn't lie about the origin of the bedrock. But the purpose of this thing... I didn't say it at dinner."

"Yes, so I came back to ask you," Sid said.

"Actually, I really don't want to tell you, and this kind of thing...you know, and it may not be of any benefit..." Dudu explained that looking at his look is about to make a final effort.

Hopps sighed: "Du Du, can you not drag the mother-in-law with this mother-in-law? Come on, we have to go back to sleep, and work tomorrow!"

Dudu smiled and said: "The bedrock is a new type of weapon material that our dwarf kingdom is studying."

"What weapon?" Sid asked.

"Dynamite."

When he heard Dudu’s words, Sid and Hopes were still unclear. The jellyfish who was hiding in the air was awkward and almost fell.

Explosives? !