When I got closer, I saw that in the middle of the burning flame pattern, there was a faint palm print, Mu Qianmei stretched out her right hand, covered the palm, and then urged it with the spiritual power containing the flame element, and the stone door slowly moved to the right and hid in the stone wall.

As soon as the stone door opened, a wave of heat immediately poured out from inside, rushing to the face, blazing hot, fortunately, Mu Qianmei's reaction was relatively sensitive, and she subconsciously ran the technique of the Ice and Fire Palm, and easily dissolved it.

Combined with the Frozen Earth Mind Technique, the Ice and Fire Palm Technique performed by Mu Qianmei was much stronger than its own skills.

Mu Qianmei looked behind the stone gate, only to see that there was a long passage inside, filled with a strong heat wave, and she could feel that the temperature inside was very high from a distance.

After running the exercises, there was an invisible protective layer of cold ice around Mu Qianmei's body, and because of the repeated operation of spiritual power, she could hardly feel the temperature of the heat wave.

After preparation, Mu Qianmei held the Dragon Ghost Sword in her hand, calmly and firmly stepped into the passage, and after a while she stepped in, the stone gate slowly closed again.

After walking for about five hundred meters, Mu Qianmei felt that the temperature inside was rising rapidly, and the ice protective layer she used her spiritual power was rapidly melting and evaporating, and Mu Qianmei had to increase the output of spiritual power to keep the ice protective layer running.

The further you go in, the redder the firelight becomes, and the higher the temperature, when you first open the door, the temperature at that time was only forty or fifty degrees, and now Mu Qianmei's location has reached seventy or eighty degrees.

After walking another 500 meters or so, the temperature rose faster and faster, reaching about 150 degrees.

Mu Qianmei's consumption of spiritual power is getting faster and faster, she knows that she can't be so slow, she should speed up, otherwise the consumption will be too great, and she is afraid that she will not be able to support the fire heart at that time.

So, Mu Qianmei sped up and walked in, and when she reached a depth of 1,500 meters, she had reached more than 300 degrees, and Mu Qianmei accelerated again while running her spiritual power, but she reached a depth of two thousand meters in one breath.

The temperature here has reached about five hundred degrees, and one hundred meters in front of him is a vertical downward cave entrance, and there is a dark red flame floating on the entrance of the cave, and when Mu Qianmei walked to the edge of the flame, the temperature here has been more than six hundred degrees.

Mu Qianmei stood at the entrance of the cave and looked down, only to see that there were red flames below, almost filling the entire cave entrance.

"Do you want to go down?"

Looking at the burning flames, Mu Qianmei was a little hesitant, because her current spiritual power was flowing outward at a speed like a small river, even if the spiritual energy in her spiritual sea was abundant, she couldn't withstand such consumption, and the most important thing was that she couldn't see the situation below, how deep the cave was, and how many degrees the temperature inside had reached, she didn't know anything.

The unknown is always a little daunting, after all, you only live once.

Mu Qianmei thought about it for a while, and felt that there should be no danger to her life, this is just a test after all, and it is not a trap, since it is a test, it should be able to pass.

The first two levels, the first level is the formation, which measures wisdom, the second level is the illusion, which measures the mentality, and the third level is now facing a dangerous situation, which is a test of courage.

If you can't see the situation below, whether you dare to go down or not depends on your courage.

Of course, courage is also based on strength, and without strength, such a temperature can burn people to death.

What is the temperature below?

Mu Qianmei estimated that if it was less than 1,000 degrees, she could still support it calmly, if it exceeded 1,000 degrees, it would be more difficult, and if it exceeded 1,500 degrees, it would probably be difficult for her to pass the test.

Now it's a dark red flame of more than 600 degrees, what will it look like below?

After hesitating for a while, Mu Qianmei finally mustered up the courage and decided to give it a try.

While exuding spiritual power, she adjusted her breathing, and when she was ready, she jumped lightly into the stone cave full of flames.

The flames were red, and there was a blue ice circle around Mu Qianmei's body, when she jumped into the cave, her feet slowly stepped on the space step, slowing down the speed of the descent, plus the flames burned upward, there was already an upward momentum, so she sank slowly.

The scene looks beautiful, with red flames and blue apertures, Mu Qianmei is surrounded by a blue aperture like a fairy, and it seems to be very safe.

However, only Mu Qianmei, who was in it, knew that this consumption was really distressing, how long would she have to cultivate to accumulate so much aura? If you change it to a spirit stone to increase your aura, you will probably have to consume a special spirit stone between these breaths!

What's more, fortunately, there is no attack here, if someone attacks at this time, she will be very dangerous, once the blue ice aperture is pierced, she will be burned by the hot flames, after all, she has not reached the point of invulnerability, water and fire invulnerable.

After entering the cave for twenty or thirty meters, I found that the bottom was very wide, it was an active volcano hidden in the cave, and there would be a burning flame not far away, Mu Qianmei was in a medium-level flame, and there were a few larger ones, in the distance, there were many small flames scattered around.

There is also red magma tumbling and flowing on the mountain, exuding a strong heat wave.

The flame that Mu Qianmei fell on was also divided into several levels, the top was a dark red flame, and the bottom gradually turned into dark red, orange, pure orange, golden orange, golden yellow, golden white, pure white, blue white, sky blue, here is like a natural furnace, the lower the temperature.

When she reached the crimson flame area, because the place had become wider, Mu Qianmei immediately jumped out of the center of the flame and descended from the edge of the flame.

She could feel that if she continued to land at the center of the flames, she would not be able to withstand the temperature below.

After Mu Qianmei fell to the ground, she looked at the flames in front of her, the layers were clear, the colors were bright, and they looked beautiful, but the strong heat wave forced Mu Qianmei to continue to increase the output of spiritual power, and spiritual power was transformed by spiritual energy, so the spiritual energy in her sea of qi flowed out as quickly as a big river.

With such consumption, Mu Qianmei was very distressed.

She was eager to finish the task quickly and get out of this place.

The task sounds simple, it is to take away the fire that ignited the flame and leave, and it will be completed.

But what is the heart of fire? Mu Qianmei didn't know, but it was inferred from the name that it should be something that supported the burning of the flame! It's like a human heart, once it stops beating, a person's life is over.

However, the location of the fire heart must be the hottest place, how can she get close?

Mu Qianmei stood on the edge of the flames, feeling very hot, and she secretly estimated that it could reach more than 1,500 degrees.

With such a high temperature, Mu Qianmei is still difficult to bear, since she can't bear it, how can she get inside?

Mu Qianmei had a feeling of looking at the fire and sighing, she stared at the place where the flame was lit and carefully observed it for a while, it was indeed a heart-shaped flame, but it was empty, not a substantial thing, this tangible and intangible thing could not be taken out at all.

"Is it hidden underground?"

In that case, it will be even more difficult to obtain, and who knows how deep it is hidden underground!

After looking at it for a while, Mu Qianmei shook her head and sighed:

"In this way, there is very little hope! Is it possible that at such a great price, it is necessary to return in vain? ”

Inadvertently, Mu Qianmei looked back at the scattered flames around her, and immediately thought:

"Perhaps, the fire heart under those small flames is easier to obtain!"

I immediately walked over and looked for the one with the smallest flame.

The flames in front of me were like a very small bonfire, the flames were only two or three feet high, and the flames were only three colors, dark red, dark red and orange, that is, the maximum temperature was about 800 degrees, and the center of the fire might reach about 1,000 degrees.

This happened to be the highest temperature that Mu Qianmei could control at will, so she first used the Dragon Ghost Sword to dig up the rocks around the fire source, the hard rocks made her consume a lot of spiritual power, and then she stretched out her palm, quickly stretched out into the fire with the cold ice and fire palm technique, and grabbed it directly from the place where the flame was ignited, and really grabbed a spade, which was indeed heart-shaped.

Presumably this is the heart of fire!

After the spar was caught, the flame was also held in the palm of Mu Qianmei's hand along with the spar, just like a magician who created a flame out of nothing.

However, under the influence of the Ice Flame Palm, the flames changed from two or three feet tall to more than one foot high, and the orange color became even darker, as if it would turn dark red at any moment.

Holding a burning spar, Mu Qianmei consumed more spiritual power, and she didn't bring any tools when she came in, where should she put it?

Just when Mu Qianmei was frowning, she suddenly saw the ring on her finger, and immediately had an idea, and she used her mind to move the spar into the endless space of the ring.

Now that he has the cultivation of the middle of the tenth layer of the Qi refining period, it is much easier for his mind to enter the ring, not like before, entering and exiting once is like experiencing a life-and-death battle, but the consumption is still very large, and after Mu Qianmei used his mind to put the spar in a barren place, he hurriedly returned to reality.

Fortunately, if the spar was placed there, it could continue to burn, and after leaving Mu Qianmei's palm, the burning flame returned to two or three feet high.

Finding that the ring could be stored, Mu Qianmei immediately quickly obtained eleven spars, put them into the ring one by one, looked at the surrounding places, the small fire crystals had been taken away, and her aura was still consuming rapidly, just like a big lake turned into a small lake, and the more you went to the back, the faster the consumption rate, and the more obvious the decrease in aura, Mu Qianmei didn't dare to delay any longer, so she was ready to get up and leave.

However, when she stood up to leave, she was suddenly attracted by the flames of the largest crater, for in the center of the flames there was a sleeping rabbit.

What's going on here, isn't it the hottest place there? How could there be a rabbit sleeping?