This hole is not big, and Ye Feng's thin body just passed through. The passage of more than ten zhang in uniform size gradually saw the end ahead in Ye Feng's crawling.

Gradually approaching the exit, as far as the eye can see, there is a fire cave. Ye Feng's expression was stunned, he lay still at the exit, and after taking a deep breath, his eyes looked into the cave.

The rock wall above the fire cave is hung upside down with countless cone-shaped stones, and its dry and cracked surface looks as if it could be broken and broken off at any time. There are red rocks on the surface, reflecting the dark ground in a reddish-brown color, and the heat is several times stronger than the outside.

There is a pitch-black skeleton about ten zhang long, lying horizontally not far away, it is the bone of a python, on the head of the python, there is a raised bone horn the thickness of an arm, and the color of the bone horn is also pitch black.

Ye Feng had never seen a ten-zhang python, but when he was at home, he had heard his father Ye Haiyuan say that the horned python was called the horned python, and its horns were not only sharp, but also a treasure that was difficult to see.

"Is that a horned python?" he glanced at the bones of the python, then at the entrance of the cave where he was lying down, and muttered, "Could this be the cave of the python?"

Ye Feng had an answer in his heart, he took out a leaf of herbs from the bamboo basket and threw it towards the surface of the cave.

The herbs swirled and fell, making a ziz sound when they touched the ground, and after a few moments, gradually dried up. Ye Feng tried the same method many times, and finally determined that the heat on the surface of the cave was not weak. If you don't touch those reddish-brown rocks, the temperature in the cave is still within the range that Ye Feng can bear.

Ye Feng cautiously climbed out of the cave and jumped down towards the surface of the cave, stepping on the soles of his shoes, and the sound of Zizi was heard in an instant, and the heat surged up and spread all over his body along the soles of his feet, but this kind of burning heat would not burn the soles of his feet for a short time.

Ye Feng walked forward briskly with the bamboo basket on his back, he could guess that this place should be connected to the inside of this Brown Flame Peak, and perhaps for him, he could find a place suitable for the high temperature required for refining medicines.

didn't go far, there was an open space in front of him, there were some potholes on the surface here, the heat was much stronger, and Ye Feng could even feel the burning of the soles of his shoes.

He hesitated slightly, raised his foot and was about to fall at the moment, suddenly, a wave of heat surged from the ground, Ye Feng gasped and retreated quickly, his eyes and pupils contracted, and he saw that from a pothole on the surface in front of him, a flame as thick as an arm suddenly gushed out, and the dazzling fire instantly illuminated the cave.

Ye Feng was taken aback, and retreated again, until he retreated to the entrance of the cave, then he took a breath and looked at it intently, this look was more than half an hour, only to see that the flame had just dissipated, and after a while, another pothole on the surface of the ground, and the heat wave again gushed out the flames.

Cycle after cycle, on and on each other.

"Fire ......" Ye Feng stared at those surface potholes, his eyes showed a fine light, and he was even more surprised.

"Sure enough, there is fire here! This kind of unstable intermittent eruption ......" After Ye Feng was surprised, he groaned for a moment, feeling a little pity.

"Forget it, although you can directly enter the interior of Brown Flame Peak from the top of the mountain, you may be able to find a better place than this, but this place is better than seclusion, if there is danger, I can also leave quickly......" Ye Feng had an excited look on his face, and he muttered a few more glances around.

"There is fire, but there is still a medicine pod...... Well, I can make one of Yaoding!" Ye Feng's eyes showed a fine light, and he looked down at the scattered stones at his feet.

"The rock has been shelved here for many years, and it has not been incinerated into ashes in the hot environment, it is obviously extremely heat-resistant, and it should be possible to refine ......the medicine by hollowing out this rock to make a medicine tripod," Ye Feng groaned slightly, walked forward again, and chose a relatively solid large rock. The stone was warm to the touch, and there was no burning sensation.

Ye Feng determined the stone to make the medicine tripod, exhaled lightly, took out the sharp knife, and used all his strength to slash towards the rock.

The boring and boring continuous chopping made Ye Feng not have the slightest impatience, but made his expression extremely focused. Suddenly, a flash of inspiration flashed in his mind, and he turned his head to look at the bones of the python not far away.

Ye Feng groaned slightly, then walked quickly, and looked carefully at the python skull for a while, especially the black horn on the skull, which made Ye Feng look at it twice. Knocking on the python's bones with a knife, I heard a loud noise, and the python's bones that were more than ten feet long immediately spilled all over the ground and turned into pieces.

A black bone horn, unshattered in the fragments.

"This python's horn is really extraordinary, and I wondered how this giant python got in. Ye Feng glanced at the entrance of the cave, leaned over and picked up the black bone horn, and scratched it on the wall of the cave, immediately marking a gap.

"I don't know why this horned python had to get here from the outside......" Ye Feng shook his head, he couldn't figure it out, he walked to the big rock with the black bone horn and cut it.

The black bone horn is extremely sharp, and after a few hours, Ye Feng cut out a stone tripod, which is roughly similar to the medicine tripod in his memory, and even Ye Feng made a stone lid, thinking that when he put this stone lid on the stone tripod, the heat in the tripod will not be dissipated.

"Try it first. Ye Feng looked excited, slowly pushed the stone tripod to the pothole, and waited quietly.

A few hours later, under several eruptions of flames, flames finally erupted in the pit where Ye Feng was waiting.

At the moment when the flames erupted, Ye Feng suddenly pushed out the stone tripod, causing the bottom of the stone tripod to cover the pit that erupted the flames.

Ye Feng's expression was excited and nervous, whether he could refine the medicine or not depended on whether this stone tripod could withstand the high temperature.

Soon, the Shi Ding was overflowing with heat, the whole body turned red, a large number of cracks appeared on its surface, and there was a click sound, Ye Feng was very nervous, but after waiting for a while, Ye didn't see Shi Ding collapse, so he exhaled lightly and slowly put down the heart he was carrying.

"The flame eruption in the pothole, the intermittent time is an hour, this should not be enough for refining medicine......" Ye Feng's eyes showed contemplation, he could be said to have exhausted his brains in order to refine medicine.

"This should be a good idea!" Ye Feng took a few steps back, gestured with his right hand in the air, and immediately had an idea in his mind. But he didn't act rashly, but stared at the pothole, and looked at it carefully.

After a long time, Ye Feng held the pitch-black bone horn in his hand, his figure flickered out, and he quickly approached, quickly opening a ravine in the pothole, connecting the small hole in a pothole with the bottom of the stone tripod.

His movements were quick and did not stop at all, and he drew six ravines in succession before retreating sharply. A moment later, a crater erupted into flames, diverted by an invisible ravine, and poured into the bottom of the stone dome.

"That's the right approach. Ye Feng observed carefully for a while, found the gap between the flames, and when his body shook, he once again drew five gullies in the pothole......

After a long time, Ye Feng determined his method in his observation, and after it had substantial effect, he put his heart down.

In fact, his hesitation was justified, the lines and successions of these ravines were not drawn at random, and it was necessary to keep the fire under the stone tripod not too big or too little, otherwise it was very easy to cause abnormalities.

After all, in Ye Feng's careful observation, there were several times when several potholes erupted flames at the same time, and if the connection was wrong, I was afraid that there would be danger.

After these two most basic problems were solved, Ye Feng calmed down, and according to the pictures of refining medicine in his memory, he started his first medicine refining career in this Brown Flame Peak.