As Lin Qingfan went deeper and deeper, the bright light suddenly became dimmed, turning into a dark red, and at the same time, the temperature in the air was getting higher and higher, and the air was also turning into heat waves, which made people almost suffocate.

Lin Qingfan rushed to the eighth floor in a row, and his body finally couldn't resist the scorching heat in the air, sweat continued to drip down, and he fell to the ground with a "snort" sound, turning into mist.

"Boy, it's very good, I can stick to this point!" said Candle Lao with some relief. As his words fell, an invisible shield appeared around Lin Qingfan's body, and then, the fiery aura instantly subsided, in exchange for being cool all the time!

"Keep walking, I'll resist the heat for you!" Just when Lin Qingfan was slightly stunned, Candle Lao's voice came again.

"Got it!"

Lin Qingfan nodded, with the protection of the old candle, the blazing aura around him could no longer have the slightest effect on him, and the next speed was getting faster and faster.

The aura that the divine sense could perceive was also getting less and less, and when I finally reached the twelfth layer, I couldn't feel the slightest breath!

In this regard, Lin Qingfan was not surprised, his feet did not stop, and he continued to run down.

And his divine consciousness has always been in a state of release, as he goes down, the space becomes darker and darker, and the air in front of him has become blurred due to the high temperature.

If you don't have the help of the power of your sense, it is estimated that it will not even be easy to walk.

"There shouldn't be anyone down here!" Lin Qingfan said to himself.

"Boy, these are not for you to worry about, concentrate on hurrying!" said the old candle in a deep voice.

Hearing the voice, Lin Qingfan obviously felt that Candle Lao's words had become a little serious at this time, and he didn't want to be as easy-going as before!

Of course, at this time, Lin Qingfan didn't say much anymore and concentrated on rushing down.

Just as he entered the sixteenth floor, Lin Qingfan's footsteps suddenly stopped, and the whole person was stunned.

"There are people on this floor!" Lin Qingfan said in amazement.

"Keep walking, don't disturb each other!" Candle Old's voice reminded.

Lin Qingfan nodded, compared to those who can enter this layer, cultivation is extremely terrifying, so Lin Qingfan quietly withdrew his divine sense, so as not to disturb the other party.

I went directly to the eighteenth floor in one breath, but at this time, I found that there was this iron door at the end of this place. The pitch-black system, in this dark red space, is almost integrated, but fortunately, Lin Qingfan can detect it in time.

"Pass through that door. Elder Candle commanded again.

Hearing the voice, Lin Qingfan hesitated for a moment, and finally walked towards the iron gate step by step. According to Red Lotus, this burning tower only has eighteen floors, but now it seems that this is not the case.

Behind the iron gate, there was obviously a small opening, but large enough for two or three people to pass side by side.

With all kinds of suspicions in his heart, Lin Qingfan finally approached the iron gate, and just when he reached out and touched the iron door, a cold feeling suddenly hit.

"Ten Thousand Years of Cold Iron?" Lin Qingfan instinctively withdrew his hand and said in surprise.

"The source of earth fire is behind this door, and there is nothing in this world that can resist it except for the cold iron of ten thousand years. Candle Lao explained.

Lin Qingfan nodded, and in an instant, above his hands, mana instantly poured out. If you touch the 10,000-year-old cold iron empty-handed, you will definitely be invaded by the cold air, so under normal circumstances, you use mana to isolate the contact between the two.

"Boom!"

With Lin Qingfan's vigorous pushing, the iron door also slowly opened, making a rumbling sound, making the surrounding walls shake a little!

After some effort, the iron door was pushed open a gap, and at that moment, a strong heat wave suddenly hit, like a hurricane.

"Hoo ......"

Fortunately, Lin Qingfan reacted quickly, and grabbed the edge of the iron gate tightly with both hands, so that he was not blown away by this air wave.

This strong wave of qi lasted for about half a minute, and finally stopped.

"Geothermal gas, this must be where the source of geothermal heat is, go in!" said Candle Lao with some excitement. Originally, I thought that with geothermal fire to transform Lin Qingfan's mana, but now, with the geothermal source, the effect is naturally better.

Taking advantage of the temporary disappearance of the qi wave, Lin Qingfan's body flashed, and he passed through the crack in the door and entered the cave directly.

Entering the cave, a faint and slightly dim light shot down from the wall, illuminating the huge space behind the iron gate quite hazy, but although the light was hazy, this did not hinder Lin Qingfan's vision.

He stood vigilantly at the entrance of the cave, looking around, the smell of this place was more oppressive than outside, and the air was extremely thin.

After some observation, Lin Qingfan's gaze stayed on the dark corridor in front of him, and he could feel where the hot breath was coming from.

Lin Qingfan's gaze stayed firmly on the dark deep hole, and after a long time, he forcibly pulled his gaze back.

"Stick to the wall and walk in!" said Candle Lao lightly.

According to the instructions of the old candle, Lin Qingfan walked against the wall for a few minutes, and suddenly, a huge wind sounded coming.

Hearing this voice, Lin Qingfanfan's face was pale, he knew that the strong wave of qi from before had come again.

Without thinking much about it, he made a fist with his right hand and smashed it directly into the wall, his arm directly into the wall, and then his left hand did the same, directly into the wall.

Just like this, clinging to the wall, Lin Qingfan withstood the impact of the air waves.

Next, every few minutes, there was a wave of air coming, and Lin Qingfan stopped and entered, groping his way forward in the dim winding descending passage, and his footsteps followed the constantly turning stairs.

As it deepened, the feeling of depression continued to increase. After nearly half an hour, it was finally broken by the light that appeared at the end of the dimly lit passage.

"Be careful!" Walking quickly to the end, Candle Lao suddenly admonished.

"Hmm!" Lin Qingfan nodded, and stepped out of the dim passage, the bright light of his eyes made him habitually close his eyes, but then he opened them quickly, his eyes swept here, and his face was full of surprise.

This is an extremely spacious and empty space, covering an extremely large area, and it is almost more spacious than any of the upper floors, and since there are not many cultivation rooms here, there is a feeling of emptiness at a glance.

Lin Qingfan's gaze moved around, and after a while, he stopped at the central place, where there was a huge hole about dozens of meters wide, constantly spewing out red flames.

Slowly moving his gaze, Lin Qingfan's eyes suddenly narrowed, and he saw that there were many holes of different sizes around the entrance of the cave. Obviously, the geothermal fire is delivered through the holes into the furnaces on each level.

"It's coming!" Just when Lin Qingfan was shocked by the scene in front of him, Candle Lao's voice sounded again in his heart.