Although these black rocks were enough to blast a mountain, they were too scattered and unprocessed to pose a threat to the Saint Crystal Tiger. Anyway, there was no hurry now, so Fang Yan simply spent a whole day processing and refining the black rock.

Fang Yan used the tools at hand to take out the unstable black rock element inside, and every 10,000 catties of black rock could refine a black rock element crystal the size of a fingernail. But despite its small size, it is incredibly powerful, just like the atomic bomb, a coin-sized piece of nuclear material can destroy the world if it is fully released.

Fang Yan The black rock they mined smelted a total of two black rock elemental crystals, but it was obviously unrealistic for them to shake the Saint Crystal Tiger on their own.

Therefore, in order to exert the power of the black rock elemental crystal, Fang Yan had to start looking for other ores.

In addition to being rich in black rock, this snow-capped mountain also produces three other types of ore, namely yellow rock, obsidian, and gold ore.

Yellow stone is highly toxic and extremely corrosive, so it is extremely useful for building equipment, polishing, etc., but square rock is not used now, so yellow stone is not mined at all.

As for the gold ore, Fang Yan drooled in his mouth, but in this world, the output of gold ore is very large, so the value is not as great as imagined, and some will only be added when refining some special magic weapons and weapons and equipment, so Fang Yan has not mined.

The last obsidian, Fang Yan had everyone rush to work day and night, mining as much as they could.

Obsidian works by radiating energy, amplifying any energy released through it, like a megaphone, which is exactly what Fang Yan needs.

The crowd spent a full day mining obsidian, and then Fang Yan quenched the obsidian into radiant crystals, and then made the crystals into a hollow ball, filling it with black rock crystals. In order to maximize the power of the Black Rock Elemental Crystal, Fang Yan also carved a layer of inscriptions on the outside that can increase the power of the explosion, which can double the power of the explosion.

When Fang Yan and the others returned to their original point, the Saint Crystal Tiger was still standing in place. In order to be safer, Fang Yan prepared to use the method of long-range bomb dropping, and let Feng Yu take one and fly it into the air, flying as high as he could, as far away from the explosion point as possible. And Fang Yan and the others also ran to a place twenty miles away from the explosion point.

A moment later, a ball of fire as dazzling as the sun erupted from the top of the snow-capped mountain, and the fire grew larger and larger, and the clouds and mist that permeated the surrounding area were instantly torn apart, forming several circular shockwaves. Immediately afterward, the flames began to move into the air, coming into contact with the surrounding air, evaporating everything in a way, forming a huge white mushroom-like cloud.

Fang Yan chuckled in his heart: "If you don't pay attention, you will build an atomic bomb!"

Senior Sister Hu next to her was also shocked: "This ...... This power is comparable to a forbidden spell!"

Before everyone could recover from the shock, a violent shaking occurred beneath their feet, followed by an apocalyptic avalanche. The thick white snow was like a huge wave, surging towards Fang Yan and the others.

"It's not good, it's an avalanche!" Fang Yan roared, he had calculated everything, but he had forgotten that the explosion could cause an avalanche.

Looking at the overwhelming snow, Fang Yan and the others glanced at each other, and at the same time, the true qi came out of his body, forming a transparent air shield in front of him. The snow wave hit the air cover, Fang Yan only felt that he was bearing a huge impact force, if it weren't for a few other people to help defend it, I am afraid that he would have already been swallowed by the heavy snow.

The avalanche lasted for half an hour before it ended, and when everyone climbed out of the snow, they found that the top of the snow-capped mountain had disappeared, as if one had actually shaved off the top of the mountain with a sword.

Just when Fang Yan and the others were stunned, Feng Yu flew back, and as soon as he fell to the ground, he yelled at Fang Yan: "Fang Yan, why didn't you tell me earlier that this thing actually has such great power, if I hadn't flashed fast, I would have died dozens of times just by being hit by the aftermath!"

Fang Yan shrugged his shoulders and said that I was also surprised.

Although this black rock elemental crystal gave everyone too much shock, it had a slight benefit, it did not have the ability to radiate, so everyone could go to the explosion point with impunity. When he reached the top of the mountain, which had been blown to pieces, Fang Yan found that the top of the mountain had not only been razed to the ground, but also formed a huge depression, like a volcanic crater.

Seeing this huge gap, Fang Yan realized that it was not that the power of the black rock element crystallization was too great, but that when it exploded, it accidentally affected a large number of black rock ores hidden in the mountain, and all the black rock ores exploded together, causing this earth-shattering explosion.

When Fang Yan and the others found the Saint Crystal Tiger, they found that the Saint Crystal Tiger was covered with a large number of cracks, but it was still alive.

"Damn, this Saint Crystal Tiger is too strong, right? This can't kill it!" Fang Fengbao looked at the Saint Crystal Tiger and sighed.

Feng Yu snorted coldly: "Give it another time!"

Fang Yan waved his hand: "No need, although it is not dead, its body has been shattered, its defenses have been broken, we can easily kill it." After saying that, Fang Yan put away the black rock element crystals, for fear that he would accidentally cause an explosion and kill everyone.

Fang Yan directly took out the Demon Lin Sword, first opened the Qi Imperial Sword, and then cast the Assassin Style, and bombarded the Saint Crystal Tiger with a sword.

"Bang la ......"

The Saint Crystal Tiger's body was as fragile as glass, and it instantly shattered into countless fist-sized crystals.

Seeing that the Holy Crystal Tiger had no place to be buried, everyone breathed a sigh of relief, and they all picked up the crystals and began to absorb them. Although these crystals are not only small in number, but also limited in size, because the Saint Crystal Tiger is the only one among all the holy beasts that can manipulate the power of the elements, its body has spiritual power that other holy beasts cannot match.

Each fist-sized spar contained enough aura to rival the Ice Spirit Stone in the Xuanbing Tiger Venerable Ice Cave.

It took everyone three days to absorb these small-looking spars, since the strength of Feng Yu, Lin Feng, and Senior Sister Hu had already reached the top of the martial arts, and as long as they broke through the bottleneck, they could reach the martial venerable level, so these spiritual qi were of little use to them, and only a small part of them were absorbed. And Fang Yan and Fang Fengbao absorbed everything, and as a result, Fang Yan and Fang Fengbao all jumped to the level of being on par with Feng Yu and them.

Although time was pressing now, no one knew what dangers the second secret realm had, in order to be more reliable, Fang Yan still took the time to learn the Heavenly Sword Style and the Qi Control Sword.

The day was very short, but Fang Yan felt that it was a long time in his mind, and when Fang Yan finally withdrew from his mind, everyone asked in unison, "How is it?"

The corners of Fang Yan's mouth rose slightly, summoned the Demon Lin Sword, and shouted in a low voice: "Heavenly Sword Style!"

I saw that Fang Yan's body suddenly became illusory, and he swung thirteen swords in a row, each swing of the sword would burst out with a powerful sword qi, and when he encountered the mountain stone, the mountain stone would be split into two in an instant. Thirteen sword qi unexpectedly carved a large hole of more than twenty meters in the snow wall. This is not the end, the Heavenly Sword pays attention to the unity of moves, after the thirteen swords are released, they immediately integrate the aftermath of the thirteen moves, all condensed on the blade, and then, Fang Yan is like a meteor, suddenly rushing into the big pit that he has chiseled.

"Boom!"

A loud bang came out, and the big pit was actually deepened by Fang Yan for more than ten meters.

"It's so strong!" Fang Fengbao looked at the huge pothole and sighed incomparably.

The corners of Feng Yu's mouth rose slightly: "If you don't even have this ability, how can you lead us to break through the secret realm?!"

Fang Yan was just simply casting the Heavenly Sword Style, and he didn't use the Qi Imperial Sword to increase it, if he used the Qi Imperial Sword again, the power would be doubled.

Not only did he have no time to show Fang Yan now, the Saint Crystal Tiger was killed, in addition to the spars scattered all over the place, there were also immortal stones, no one expected that this immortal stone was actually in the body of the Saint Crystal Tiger.

Now that the three immortal stones have been collected, Fang Yan hurriedly integrated the three immortal stones together, only to see three dazzling rays of light emanating from the immortal stones, and the three immortal stones actually began to melt, turning into a standard circle, with a hole in the middle, and a colorful light shot out from the hole, forming a gate like a whirlpool in the air.

The three of them glanced at each other, Fang Yan took a deep breath, and shouted, "Are you all ready?!"

Everyone said in unison, "Ready!"

Receiving an affirmative answer, Fang Yan did not hesitate to rush into the whirlpool first, as if he was in a turbulent current, his body could not be controlled, he wandered in the void like this, I don't know how long it had been, suddenly a bright light flashed, Fang Yan was squeezed out of the void by the turbulence, and appeared in a new world.

Unlike the Three Immortal Heavens, this world is barren, and wherever the eye passes, the land is desolate, not a single grass grows, and there are countless bones all over the ground, these bones are all wearing armor, and they are obviously soldiers who died on the battlefield.

Fang Yan was shocked, and hurriedly asked Zhi Brain: "Introduce the second secret realm." ”

Zhi Brain's emotionless voice sounded: "The second level of the Taiwu Secret Realm, blood and fire. In this world, there are wars everywhere, and there are three major camps, namely the orc tribe, the human alliance, and the dark race. Among them, all the members of the dark race are controlled by the heart of darkness, and they are a lifeless walking corpse, a war machine. Because of this, the orc tribe and the human team have to join forces to fight the dark race, but even so, they are still in danger. ”

"How to break through the second secret realm?" Fang Yan hurriedly asked.

The voice of the Wisdom Brain rang out: "Destroy the Heart of Darkness." ”

Fang Yan's brows furrowed, as the place he could see was filled with countless bones, and these bones either belonged to humans or orcs, and there was not a single corpse of the dark race at all. This shows that the dark race is strong enough to sweep through these two races, but with Fang Yan's strength, let alone destroying the heart of darkness, I am afraid that they have already been killed before they have arrived.

After thinking about it, Fang Yan felt that the only way was to use the power of the Human Alliance and the Beast Tribe.

As soon as they thought of this, Senior Sister Hu and the others flew out of the whirlpool and landed beside Fang Yan.

"Wow, why are there corpses everywhere around here, could it be that there was a big war just now?" As soon as he came to this world, Fang Fengbao was so frightened that his face turned pale.

Feng Yu is no better: "Damn, I want to go back, this world is too miserable." ”

Lin Feng's face was also very solemn, but he didn't show his weak side, but walked to Fang Yan's side, and after inquiring about the situation, he asked, "What should I do next?"

Fang Yan took a deep breath and said in a resolute tone: "Go to the Human Alliance!"

With Fang Yan's order, everyone trampled on the corpses like a sea and headed towards the distant human gathering place.