Fang Xi walked into it and found that the cave led directly to the mountainside, and the entire mountainside seemed to be hollowed out, presenting a complex structure like a honeycomb.

At the end of almost every branch, there is a secret room for refining Gu. From time to time, Gu Immortal Sect disciples will take out Gu insects or put in large amounts of poison.

"What do you think of this place, fellow Taoist?" Pan Yin walked in front and asked with a sweet smile.

"The hundreds of refining caves formed by the terrain are themselves a huge formation, but they are more focused on refining Gu." Fang Xidan replied calmly.

Sure enough, this person is proficient in formation clearing! Pan Yin's heart moved, and he became more and more glad that he did not use the formation to leave behind the thoughts of the Celestial Puppet True Lord.

The two of them kept going deeper and soon arrived at the heart of the mountain.

"This place is a restricted area. Even some elders who form pills are not allowed to enter."

Pan Yin led Fang Xi to a cave. A dark green token appeared in his hand, and he shook it at the restriction: "Open!" The thick restriction opened, revealing a simple stone door.

"The Five Fire Gu is inside it. Although this Gu is only at the 'Earth' level, if it can be cultivated with various rare and rare spiritual flames, it has great hope of reaching the 'Heaven' level."

Pan Yin made a secret with his hands, fired a stream of magic power, and landed on the stone gate.

A black light flashed on the surface of the stone door, and it opened with a bang.

Obviously, in addition to the surface layer of restrictions, there is also a layer of hidden restrictions above the stone gate.

If we attack forcefully, we will inevitably suffer a backlash.

Stab!

The stone door opened, and a blast of frost and cold air spilled out.

Fang Xi looked around and saw an ice cave.

There is a stone table inside the cave, and a palm-sized white toad is lying on the table, its breath is extremely weak.

"I will remove this poison seal, and when the time comes, my fellow Taoist can just use my magic power to refine it."

Pan Yin softly introduced a few words on the key to refining the Five Fire Gu, and then waved his sleeves.

The surrounding ice melted rapidly.

Tick ​​tock! Tick tock!
Chapter completed!