Excited in his heart, Xue Xuan flashed in, it was still a little dim at first, but after walking for a while, it suddenly opened up, and a huge karst cave appeared.

The cave is like a buckle bowl, the top conical stalactites hang high, all kinds of stalactites are strange, stalagmites stand in a forest, and look extremely beautiful.

Xue Xuan stood, the fiery red light reflected on his face, forming an arc of light, and fine hairs could be seen.

This cave is illuminated by the fiery red light brightly and abnormally, and all kinds of magnificent and magical stalactites are also presented, and the ingenuity is really amazing.

Beyond the stalagmites, Xue Xuan came to the center of the cave, where there was a clearing, surrounded by stalagmites and stalactites growing indiscriminately, but here it was as flat as a platform, obviously artificially made.

On the platform, there are lines depicted, like flying fish, birds and beasts, which are quite mysterious, exuding an ancient and unknown mystery of the years.

Xue Xuan stepped on the platform, his eyes fixed on the center, where there was a fiery red Ding furnace standing quietly, more than half a person tall, simple and silent, carved with various patterns, the air seemed to permeate the breath of time, Xue Xuan had a feeling of traveling to ancient times.

"Is this the Divine Fire Ding?"

Xue Xuan walked over and lightly touched the body with his palm, the feeling was like touching a piece of warm jade, a little warm.

This Ding furnace is more than one person high, although the Ding body is red, but the inside of the Ding furnace is cold, showing that it has not been used for a long time.

Xue Xuan circled around the Ding Furnace, and there was a black hole the size of a human head on the ground below the Ding Furnace, and the entrance of the cave was scorched black, which was a method for the Medicine King to trigger the Earth Fire Alchemy Pill back then.

Now that the years have turned, this black hole is cold, I don't know where it leads to the ground, I don't feel the scorching heat at all, it seems that the so-called earth fire has mostly disappeared.

After observing for a long time, Xue Xuan raised his palm, and a ball of fire flew to the bottom of the Ding Furnace, turning into a raging flame and beginning to scorch the Divine Fire Ding.

Next, it's time to prepare for alchemy.

Although he had never refined, Xue Xuan had a strong self-confidence in his heart, and that kind of confidence came from the Medicine King's lifelong study and endless practical experience.

The Divine Fire Ding was shrouded in flames, and the already fiery red Ding body was even brighter, as if it had turned into a part of the flames, Xue Xuan waited for a while, and added a few more fires, if you want to refine the pill, you must first remove the damp and cold qi accumulated in the Ding Furnace.

Taking advantage of the time to roast the Ding furnace, Xue Xuan wandered around the cave and found some red spar in a pimple corner.

Fire Source Crystal.

A kind of spar that can increase the firepower and make the flames more blazing, should be left by the Medicine King back then, although some of them cannot be used, but they are still well preserved.

Xue Xuan picked out the useful fire source crystal and placed it under the Ding furnace, the flame suddenly burned a lot, the flame was raging, emitting a lot of heat than before, and the whole cave was reflected by the firelight, which was even more magnificent, and the scene was dreamy.

Immediately afterward, he left the cave, and when he came back again, he had a lot of things in his hand, a tree root, three white stones, and a lot of grass and mushrooms.

"Ember roots, alarite, laneige grass, yellow leaves, ......"

Xue Xuan had a broken thought in his mouth, and said some names that he had never heard before, all of which were materials for refining Yun Lian Dan, and it was not difficult to find them near Huolong Bay.

Putting a large pile of materials on the ground, Xue Xuan took out a bunch of bottles and cans from his backpack, tinkered with it, and poured out a piece of ice crystal the size of a fingernail from a jade jar, which was an indispensable material for refining Yunlian Pill - Xuanjing Lotus Petal.

This is the material that the Medicine King has been searching for many years to find when refining the Yun Lian Pill.

The damp and cold air in the Ding Furnace had almost been removed, Xue Xuan looked at a pile of materials that should have been unfamiliar but were extremely familiar at this time, took a deep breath, and immediately threw the Tianying Stone into the Ding Furnace.

At the same time, he sat down cross-legged, pinched the seal in his hand, and cast the Fire Resisting True Dragon Technique, controlling the flames under the Ding furnace.

And under his control, the originally fierce flame calmed down like a bird, converging the flame, and slowly heating the Divine Fire Ding.

After a while, Xue Xuan put in some more materials, and at the same time, the seal changed, and the flames surged out, bursting out, enveloping the entire Divine Fire Ding, and that kind of violent posture made the entire cave red, extremely hot.

The blazing flames swept the entire platform, and Xue Xuan was also shrouded in it, but where he was, the rolling flames were avoided, and they did not sweep, and he and the materials for refining the Yun Lian Pill seemed to be in another world.

Xue Xuan's eyes were scorching, reflecting the light of the fire, and there was a disillusionment in his eyes, as if he could see through the flames and observe everything in the Divine Fire Ding.

At this time, his expression was focused, and his face was awe-inspiring, although it was the first time to alchemize, he was not nervous or panicked, as if he had been refining many times and had his own experience.

Refining the elixir obviously takes time, and after a day, less than one-third of the materials have been put in.

Xue Xuan controlled the flames, the true dragon trick of resisting the flame, it was really mysterious, the method of controlling the flames, let Xue Xuan marvel in his heart, I really don't know how jaw-dropping the person who created this trick is in the comprehension of the flame.

At the same time of refining the Lotus Pill, Xue Xuan also found that his mastery of the Fire Resisting True Dragon Technique seemed to be gradually deepening, and this method seemed to have a very high degree of compatibility with himself, and he was very handy when he cultivated.

For two days, Xue Xuan has been sitting cross-legged and concentrating, not daring to be careless, although the operation of each step and details is very clear in his mind, but now his skills are still shallow, and if he wants to achieve the imaginary control, even if he is engrossed, it is extremely laborious, so he can't be a little slack.

And the constant use of the Fire True Dragon Recipe is not a small consumption for Xue Xuan, the amount of vitality in the body is already small, and it will soon disappear, but there are Ju Yuan Dan and Rejuvenation Divine Pill, Xue Xuan's vitality and spirit do not have to worry about not being able to support it, the Yuan Force is used up, and the use of the Gathering Qi Pill is used to refine and replenish, and the spirit is exhausted, and the use of the Returning Divine Pill is immediately as fierce as the blood of the chicken.

Rumble!

On the fourth day, all the materials have been put in, and it is the most critical step of refining.

The raging fire swept away violently, sweeping the entire cave, many stalactites melted directly, and stalactites kept falling from the top of the cave, as if it was about to collapse.

Xue Xuan burst into the river, his body jumped out, the fire was too strong, he couldn't control it, if he continued like this, he would fall short, and even if the cave collapsed, he would die here.

But his face was calm, and he appeared directly in the corner of the platform, and his palm slammed on the ground, and a steady stream of yuan power poured into the platform like a stream of water.

Airplanes.

The inscriptions on the ground began to glow, the platform buzzed and trembled, and then a burst of strong light erupted, more dazzling than the flames, but not dazzling, there was a gentle feeling, and then the light spread in all directions, suppressing the fire.

Xue Xuan wiped the sweat from his forehead, it was so dangerous, if it wasn't for the formation on this platform, he would have to hang here today.

Ten fingers intertwined, Xue Xuan, with the help of the formation, cast the Fire Resisting True Dragon Technique to control the flames, and began to perform the final step of alchemy, fusing all the materials and turning them into pills.

The first step is difficult to smelt the material, but this last step is the most difficult, and the slightest mistake will make all the efforts go to waste.

But......

With the experience of the King of Medicine, Xue Xuan has the strongest confidence in this step, this step is actually a test of the grasp of the timing and the handling of details, and it does not require strong strength support, so for Xue Xuan, this is the most difficult step, which is precisely the easiest step in alchemy today.

Airplanes.

There was a trembling sound from the Divine Fire Ding, and a moment later, a fire dragon formed by flames flew out and swirled above the Ding Furnace, and in the dragon's mouth, there was a red pill like fire, shining with a jade-like luster.