As Han Li ventured deeper into the ground, the temperature of the surrounding air rose rapidly and became increasingly scorching hot. However, the passageway also became wider and wider. The highest point of the passageway had already reached a height of over a hundred feet.
Han Li followed the Essence Flame Firebird as he continued to fly forward. From time to time, he would glance at the walls on both sides of the passageway.
The walls of the passageway were rather smooth and there were many traces of human repair.
"Could it be that Elder Huo Lian …" He guessed.
From this person's name, he could tell that he most likely cultivated a fire-type cultivation technique. The fire-type aura here was so dense that it was the best place to go into seclusion.
From this, it could be seen that the person who set up the restriction outside was also him.
In less than an incense's time, the deep rumbling grew louder and louder, as if there were countless rumbles of thunder.
For some reason, the Essence Flame Firebird suddenly increased in speed.
Seeing this, Han Li naturally sped up to keep up.
After flying for a short distance, his eyes lit up. A huge fire-red world appeared in front of him. It was a huge underground cavern that was thousands of feet wide.
Above the cavern were stalactites that hung upside down. They were crimson in color and covered in a layer of raging flames.
Below them was a huge magma lake. Above the lake floated a layer of crimson clouds that looked like burning flames.
The magma in the lake surged and from time to time, huge bubbles would appear and explode, producing a muffled sound that sounded like muffled thunder.
A fist-sized ball of fiery red light floated out of the bubbles and floated around.
"Fire essence!" Han Li's eyes lit up.
The entire underground cavern was filled with crimson light that looked like flames. The air itself seemed to be burning and the temperature had reached an inconceivable level. Even with the strength of Han Li's Xuan Immortal body, he felt his mouth go dry.
Gusts of hot wind blew from the surface of the lake, causing his skin to hurt.
But seeing this, the Essence Flame Firebird was unusually excited.
The bird flapped its wings and turned into a silver-white shadow that circled around the cavern. From time to time, it would grab a ball of fire essence and swallow it. Sometimes, it would even fly directly into the magma below and disappear in the blink of an eye. Then, it would scuttle out from somewhere else, extremely satisfied.
Han Li's heart skipped a beat.
The abundance of the underground fire veins far exceeded his expectations. No wonder Elder Huo Lian had to use a restriction to cover up this place.
The Refined Flame Firebird would be able to quickly recover by absorbing the flame energy here.
However, there seemed to be something missing …
He took a deep breath and regained his composure. He waved his sleeves.
Hundreds of red lights shot out. They were red formation flags. They landed in the air above the lava lake and formed a huge formation.
As he chanted, spells flew out, and the entire spell formation slowly began to operate. Each of the formation flags released rays of red light, condensing into a huge red spell formation.
The Essence Flame Bird seemed to have understood its master's intentions, and it immediately stopped its frolicking and flapped its wings before landing at the center of the spell formation.
In the next moment, all the flame energy in the underground cavern seemed to be attracted and gathered towards the spell formation. Layer after layer of the flame energy swirled around the Essence Flame Bird, quickly forming a huge red cocoon.
Han Li's figure rose from the ground. In a flash, he stopped in front of a certain wall in the underground cavern. He took out a giant red brush and began to carve. Soon, countless large runes were carved into the shape of a flame.
Then, with a sway of his body, he appeared in front of another cavern wall. Waving the brush again, he carved out another flame pattern.
Soon, eight flame patterns were carved under Han Li's hand, surrounding the giant cocoon in the middle.
Han Li put away the huge brush with a flip of his hand and began to mutter an incantation.
Weng!
The eight flame patterns released a dazzling light and soon connected with each other, forming a huge spell formation that enveloped the giant cocoon.
The two spell formations faintly resonated with each other.
Boom!
The underground cavern shook slightly, and more flame energy surged into the red cocoon.
At this moment, Han Li could clearly feel that the strength of the Essence Flame Bird in the cocoon was slowly increasing, and a trace of satisfaction flashed in his eyes.
He then patrolled around the underground cavern to make sure that the two spell formations were running smoothly. Then, he returned to the outside through the tunnel.
After looking around, he waved his sleeves, and rays of light flew out and landed near the valley. Soon, a huge restriction formation was opened, covering the entire valley again.
After doing this, he heaved a sigh of relief.
After solving the problem of the Essence Flame Bird, Han Li was in a good mood. He didn't immediately fly back to the top of the mountain, but flew out of the Crimson Afterglow Peak.
Since the 600,000 miles around the Crimson Afterglow Peak would be his territory in the Fire Dragon Taoism, he naturally had to take a good look and make some preparations.
After spending half a day, Han Li roughly walked around the entire territory, and set up some sensing spell formations everywhere in the territory to prevent people from sneaking in.
In the entire territory, as the core, the Crimson Afterglow Peak was naturally the place where the spiritual veins converged, and the Heaven and Earth Spirit Qi was the richest.
However, in addition to this peak, he also found two small spiritual lands that were not bad by the standards of the Beihan Celestial Realm, and more than a dozen good mineral veins.
Most of the mineral veins had been mined, and the two small spiritual lands had been opened up into pieces of spiritual fields, but no one had taken care of them for many years, and they had long been abandoned.
If it were any other True Immortal Elders, they would naturally send some servants to mine the spiritual fields as a long-term source of spirit stones.
But Han Li had no interest in this, at least for the time being, and soon flew back to the top of the Crimson Afterglow Peak.
"Elder Li!"
Yun Menggui and others were standing side by side at the gate of the courtyard at the moment, bowing to Han Li, who was floating down.
Everywhere on the top of the mountain, at this moment, had been cleaned, spotless, and the pavilions were even more refreshed.
The tall bamboos and pines seemed to have been washed, they were emerald green, and there was a group of golden fish in the small bridge and river, swimming and playing in the emerald green lotus leaves, which set off each other.
Han Li nodded with satisfaction, arranged a few rooms on the periphery of the cave house for Yun Menggui and others to stay, and then sent them to rest.
Han Li checked around the cave house, set up some restrictions, and then came to the front of the Spirit Medicine Garden.
Since this medicine garden was located outside, he naturally would not plant the spiritual medicine that he really valued here, but it would also arouse suspicion if he left it here.
Han Li pondered for a moment, and immediately divided the medicine garden into several areas, took out some ordinary spiritual medicine seeds, and scattered them here.
He had done this many times, and was already familiar with it.
It didn't take long for a brand-new medicine garden to emerge.
Han Li turned his hand, took out a jade pot, and waved it gently.
A light green spiritual liquid flew out from it, and fell everywhere in the medicine garden.
Then, he waved one hand, and a green light flew out from his hand, covering the entire Spirit Medicine Garden.
Green sprouts emerged from everywhere, emitting a tender green vitality.
A smile appeared on Han Li's face, and then he turned around, passed through the courtyard, and went straight to the cave house on the mountain wall. With a wave of his sleeve, the door of the cave opened, and he stood up.
This cave house didn't look special from the outside, but it was indeed a different world inside. At first glance, there were more than a dozen rooms, including alchemy rooms, refining rooms, and everything else, which saved him a lot of effort.
Compared to the courtyard in front, Han Li naturally preferred the environment here. Perhaps the previous owner of the cave house also thought so.
After thinking for a while, he began to make some changes here. He turned the most secluded stone room into a small medicine garden, and opened up another stone room near the mountain wall. He also punched countless small holes in the wall, so that the light of the stars and the moon could shine into the room, so that the Sky Bottle could absorb it.
After everything inside the cave house was set up, Han Li walked out of the cave house again, intending to set up a few more layers of restrictions on the outermost area.
However, just as he was about to cast a spell, his body suddenly stiffened, and he turned around, looking at the Spirit Medicine Garden next to the courtyard.
In the medicine garden, most of the spiritual herbs that had just sprouted had withered, and only a few were still alive.
"What's going on?"
Han Li's face darkened, and he quickly walked over, pulling out a withered spiritual herb.
He saw that the roots of the seed were completely withered, showing a pitch-black color, as if it had been burned by fire.
He pulled out a few other spiritual herbs, and the situation was the same, but there were a few types of spiritual herbs in the medicine garden that were growing well, full of vitality, and showed no signs of withering.
Han Li immediately spread out his Divine Sense, and it did not take long for him to find the possible cause of this situation.
Because the underground fire vein had not been controlled for a long time, its abundant fire spiritual power gradually seeped up, and all the soil of the Crimson Afterglow Peak contained rich fire spiritual power.
This kind of environment was very suitable for the growth of fire spiritual herbs, but if one wanted to plant spiritual herbs of other attributes in this medicine garden, they would not be able to survive.
Han Li looked at the few spiritual herbs that were growing well in the medicine garden, and they were all fire spiritual herbs.
He frowned slightly, there was actually such trouble in the Crimson Afterglow Peak.
No wonder no one cared about this Crimson Afterglow Peak. When he first chose this place, Yu Xiansheng and Qi Liang had a strange expression on their faces.
Han Li pondered for a while, and his brows quickly relaxed.
Although the current situation seemed a little troublesome, it was not impossible to solve. There were still many ways to isolate the influence of the underground spiritual vein, and he just needed to set up some restrictions that could isolate the spiritual vein.
Although in this way, the spiritual herbs would be affected in absorbing the spiritual energy of the spiritual vein, he was not too worried. After all, he used the green liquid produced in the Sky Bottle to accelerate the ripening, and there was not much requirement for the spiritual energy of the spiritual vein.
As for the Spirit Medicine Garden next to the courtyard, anyway, it was used to deceive people. When the time came, he could directly plant some fire spiritual herbs.