The senior's body was as light as nothing, and he just attached Tang Feng and flew into the hole. After falling to the ground, the senior gasped again, and Tang Feng hurriedly instilled Gang Qi into him, and it took him a long time to recover his breath.

Straightening up, the senior staggered a step, almost losing his footing.

"Let's go. ”

The elders waved their hands and led Tang Feng towards the cave.

This cave, which is more than ten zhang in diameter, is like a cracked beast's mouth, and people stand in it and give birth to a sense of insignificance.

There is something fluorescent and shiny on the walls of the cave, which exudes a light that is neither strong nor weak, so that the whole cave is bathed in a dreamlike brilliance.

In addition to the footsteps of two people walking forward, the stabbing was the wheezing and light coughing of the seniors. ”

Is this where the spiritual veins are?"

Tang Feng couldn't hold back the curiosity in his heart and asked. He could indeed feel that from the unknown end inside, there was a very rich aura coming from it, and the richness of this aura had surpassed all the aura that Tang Feng had seen before, even in the secret realm of the White Emperor, it was not as good as having Luo Yushi's heart to help gather it.

"Yes, right ahead. ”

Although the seniors were weak, they still answered Tang Feng's question.

Tang Feng's heart was excited for a while, and he stopped talking. The senior's situation is not very good, and he doesn't want the other party to waste effort to answer his own questions.

However, I have always heard of the spiritual vein, but I have never had the opportunity to see it with my own eyes, and now that the spiritual vein is in front of his eyes, Tang Feng is naturally a little excited.

After walking deep for another hour, the strength of the two of them is not fast now, but after such a long time, Tang Feng estimated that he had already gone deep into the belly of the mountain for at least twenty or thirty miles.

The straight passage of the cave is getting bigger and bigger, originally only a dozen zhang, but now it is full of twenty or thirty zhang, and the rich aura is becoming clearer and clearer, and the aura flowing around the body is visible to the naked eye, just like a mist of water, filling the entire cave. "Enough ......"

Suddenly, a beast's roar came from the depths of the cave, and the roar was so loud that it was so loud that the cave trembled, and debris and dirt were falling from the cave walls.

Tang Feng's heart suddenly sudden, and he couldn't help but stop his pace.

Just when he wondered if there was any spirit beast inside, the senior smiled and said, "It's a little recognizable, don't be afraid." ”

Tang Feng's head was full of confusion, and he really couldn't understand why there was a spirit beast here, and listening to the meaning of the senior's words, this spirit beast seemed to be raised by him.

Continuing to walk forward, when the straight passage of the cave expanded to about thirty zhang, Tang Feng's vision changed in front of him, and he couldn't help but be stunned.

He found himself at the end of the cave, and at the end was an exaggerated and huge space, this space presented a semi-circular shape, as if a cover was shrouded in the ground, looking up, the top of the cave was at least dozens of zhang away from him, and the left and right lengths were even more jaw-dropping, Tang Feng roughly estimated that the space here was at least a dozen miles or so.

What surprised Tang Feng even more was still to come, in this space, there was a big white tiger standing there. This snow-white tiger exudes soaring aura fluctuations, and his body is crystal clear and beautiful.

But even so, Tang Feng still had an irresistible sense of oppression after seeing it.

For no other reason, it's just too big. The sturdy body occupies almost half of the space, the height is at least twenty zhang, and the body length is thirty or forty zhang, the tiger tail is dragging behind him, but it reflects a violent beauty between moving at will, and Tang style can't help but swallow saliva, and his heart is overturned!

What kind of spirit animal is this, and why is it so huge?

"Shy,......

As if feeling Tang Feng's gaze, the huge snow-white tiger roared at Tang Feng, but lowered his head again and gently rubbed his senior.

The scene looked a little terrifying, several crystal fangs of the giant tiger stretched out of its mouth, each fang was several times larger than the predecessors, this intimate behavior as if coquettish made Tang Feng's heart to his throat, for fear that the tiger would have a mouth, so he would be embarrassed by the seniors.

Fortunately, this kind of thing did not happen, the senior smiled and patted the giant tiger's jaw, the giant tiger squinted his eyes very much, turned half of his body, and crawled on the ground, and the huge tiger tail wrapped the senior in it.

The seniors also sat down cross-legged and closed their eyes.

Tang Feng didn't dare to disturb, he stayed quietly and waited, looking around, he saw that the tail of the giant tiger actually released a visible aura, pouring into the body of the senior, and after a while, the senior's face recovered a lot.

What is this? It can actually be cultivated with spirit beasts, Tang Feng looked at it intently, and felt that this time he really had a long insight.

Not to mention the magic of the predecessors, it is this huge tiger, and Tang Feng has never heard of it. How can there be a spirit beast in the world that will grow so big? If such a spirit beast is released, I am afraid that the top grade of the spirit level will not be an opponent.

Looking at it, Tang Feng couldn't help but find a strange thing, that is, there was a cloud of aura on the tiger's tail that actually accumulated, at first Tang Feng thought that he had looked away, but when he looked closely, the aura was indeed silted, showing a palm-sized mass.

This palm-sized cloud of aura was only in the form of mist at first, but gradually, it became like a giant tiger, crystal clear. There was a soft sound of "click", and Tang Feng's mouth couldn't close.

He clearly saw that the aura turned into the appearance of a spirit stone and fell from the tiger's tail.

How is this possible? Tang Feng rubbed his eyes vigorously, and then looked at it, there was indeed a spirit stone on the ground! In order to verify his conjecture, Tang Feng stretched out his hand and sucked the thing over. After a closer look in front of my eyes, I still didn't dare to confirm it, although I saw it in my eyes, but all this was too unbelievable. "Don't guess, what you have in your hand is a spirit stone, an intermediate spirit stone!"

The senior's voice came, and Tang Feng raised his eyes, only to see that he had opened his eyes at some point, and his breathing and breath had stabilized.

"Senior, what's going on?"

Tang Feng humbly asked.

"Come here. ”

The senior beckoned to Tang Feng.

Tang Feng walked over and sat down in front of the seniors.

Only then did the senior speak: "I don't have much time, so I can only make a long story short." I will try to explain the doubts in your mind clearly, and if there are any questions you can ask now. "Where did this spirit stone come from? What is it?"

Tang Feng looked at the intermediate spirit stone in his hand, and then pointed to the tiger that was crawling on the ground.

The senior laughed, Xiao: "The spirit stone is naturally produced from the spirit vein, you just saw the birth of the spirit stone with your own eyes, you shouldn't have guessed what it is, right?"

The corners of Tang Feng's mouth twitched, and he said weakly: "Senior, you mean to say that this white tiger is," "Spirit vein?"

The senior nodded slightly: "Yes, it is the spiritual vein here!"

Receiving a positive answer from his seniors, Tang Feng almost collapsed. Before that, he had imagined many times what the spiritual veins would look like, and the ideal answer was that they were like mineral veins, stretching deep in the earth, and being mined by people for cultivators.

But now the seniors told him that the living tiger in front of him, except for being a little larger and having stronger aura fluctuations, the other tigers that are no different from spirit beasts are spiritual veins, how can Tang Feng accept it?

This kind of nonsense, if someone else said it, Tang Feng would definitely laugh it off. But these words were said by the seniors, he is the guardian of the spiritual veins here, and the words he says are authority.

"To be precise, it's the embodiment of the spirit vein!"

The seniors knew that Tang Feng was a little unacceptable for a while, and his face became serious, "The spirit veins are also divided into three, six, nine and so on, the spirit stones produced by the good spirit veins are better, and the spirit stones of the bad spirit veins on business trips are worse." If you have to divide it, the spiritual veins can be divided into two categories, the living veins and the dead veins! The spiritual veins here are the living veins, which can change into what you see in front of you, or you can leave here and go to other places to settle down. Well, in order to get the spirit stone it produces, you must first surrender it. As for the dead veins, they are buried somewhere, just like the ore veins, waiting to be mined by those who are destined to do so. Don't look at its small size now, it really wants to show the true body of the spiritual vein, which can fill the entire cave where we came. ”

Tang Feng was shocked, this cave stretched for dozens of miles, you can imagine how huge this spiritual vein is. If all of them were mined into spirit stones, God knows what a huge number it would be.

The senior patted the tail of the giant tiger and said again: "The spiritual vein here is just a tiger-shaped spiritual vein, far from the highest spiritual vein, so it has only produced a top-grade spiritual stone for so many years, and it is the one that your family gave a reward to your family a few days ago." There is a higher vein above it, depending on whether you have the chance to see it. ”

That top-grade spirit stone was still in Tang Feng's phantom space, and it had never been used. But now Tang Feng finally understood why the seniors guarded the spirit veins, but they didn't need spirit stones to cultivate.

The spiritual vein is next to him, guarding the spiritual vein to cultivate, which is better than using any grade of spiritual stone.

Solving a doubt in his heart, Tang Feng asked again: "Dare to ask your senior, who are you, why have you been guarding this spiritual vein?"

The senior is a mid-grade master of the spirit level, and he is about to approach the top grade of the spirit level, if this kind of master comes out of the world, he will definitely be able to become a hegemon. But he didn't, he has been here for hundreds of years, and the last time he left here was more than a hundred years ago. There is no need to suspect the morality of the predecessors, but Tang Feng feels that this has nothing to do with morality, a person will always have some wishes, if there is no special reason, who would want to stay here for hundreds of years?

The senior laughed, and after thinking for a while, he said, "Little guy, this question really stumps me." ”

"If it's inconvenient for the seniors, the juniors haven't asked. ”

Tang Feng was also a little embarrassed, he had no intention of snooping on other people's secrets, he was just curious.