When Gu Xuan reappeared, he was already in Hell City, Hell City is the only city on the Purgatory Star, the Purgatory Star is full of volcanic magma, and the earth fire erupts from time to time, although the danger of the Purgatory Star has increased a lot, but the corresponding fire spirit objects or elixir materials or fire materials on the Purgatory Star are a lot more. It has made Purgatory a place of training for all races in the Dragon Domain.

As soon as Gu Xuan came out of the teleportation array, he met Niu Chongtian leading a group of people, Niu Chongtian also saw Gu Xuan, he was stunned for a moment and then laughed, ran to Gu Xuansheng and said: "I know that Brother Gu Xuan is not short-lived, he is definitely not dead, and he was guessed correctly by my old cow!"

"Brother Niu, don't come to harm?" Hearing Niu Chongtian's words, Gu Xuan's heart was also warm.

"Haha, brother, I have now broken through to the peak of the out-of-body period, and I will break through to the distraction stage if I have a chance!"

"By the way, Brother Niu, you didn't stay in the Bull Emperor Star, why did you come to the Purgatory Star?" Gu Xuan asked suspiciously!

"Haha, I came this time for something, waiting for my brother of the Niu clan to come to Purgatory Star to practice, it is said that the Extreme Flame Flower of the Purgatory Sea is about to mature, and the clan elder saw that my cultivation had broken through, so he asked me to lead the team, brother, you came just in time, let's go to the Purgatory Sea together." After Niu Chongtian finished speaking, he pulled Gu Xuan and walked towards the land of the Niu clan.

"Come, Lao Niu, let me introduce you to you, this is Gu Xuan, the genius disciple of the snake clan, you can find him if you have something in the future, his cultivation is very good, killing the enemy is the same as drinking water, Guiyuan Sect knows, the top ten disciples of the inner gate were wiped out by Gu Xuan, at that time, Gu Xuan's old brother was still a cultivator in the Jindan period, and now it is the late Yuan Infant stage. And Lao Niu, I can break through all thanks to the help of Brother Gu Xuan, so if Brother Gu Xuan needs help in the future, you must help him!" Niu Chongtian explained to the clansmen with a big grin, without a trace of leading the team.

"Brother Gu Xuan, let me introduce you, this is Niu Tong, he has the blood of a strong mangniu, and he is Elder Niu Mountain!"

"I've met Brother Gu, my father told me about you, just look for me if you have anything in the future!" Niu Tong patted his chest and said, without the slightest disguise, this is the person of the demon clan, as long as he recognizes you, he doesn't have so much thought.

"This is Niu Jun, the kid of the Great Elder, with the blood of the Iron Hoof Demon Bull on his body, he knows that he is causing trouble in the clan, and he was thrown to the Secret Realm of the Niu Clan by the Great Elder for a few years, otherwise this kid in the Blood Buddha Secret Realm last time will definitely go!

"I've heard of Brother Gu Xuan's name, when will you fight with me!" Hearing Niu Jun say this, Niu Chongtian directly slapped him, glared and said: "If you want to fight, I'll accompany you to fight when you return to the clan!" Brother Gu Xuan, don't mind, this kid just owes it to clean up!"

Hearing Niu Chongtian's words, Niu Jun's neck shrunk, obviously having some lingering palpitations about Niu Chongtian!

Niu Chongtian waved his hand, released a bronze chariot, and said to everyone: "Hurry up and get in the car, let's go to the Purgatory Sea, Brother Gu Xuan get in the car!"

Gu Xuan jumped directly onto the chariot without saying much, and his heart also moved, it seemed that he also needed to refine a flying magic weapon, otherwise it would definitely be a little inconvenient to walk in the cultivation realm in the future.

The bronze chariot has a lot of space, Niu Chongtian and the other four people are together, and the rest of the people are together, as soon as they get in the car, Niu Jun took out a gourd wine, and then took out four large bowls and poured them full, and the four of them drank directly. Niu Chongtian asked about Gu Xuan's affairs in the past few years, Gu Xuan did not hide it, there were some important things, and the rest were all recounted, and when he heard that Gu Xuan had gone around the wasteland, Niu Chongtian's eyes were full of envy.

"Come, for the triumphant return of Brother Gu Xuan, let's go!" Niu Chongtian finished speaking, raised the big bowl and touched it with the three of them. Then the four of them began to talk every day.

The speed of the bronze chariot was not fast, and it took more than an hour to reach the edge of the Sea of Purgatory, which was composed entirely of flaming magma and covered nearly a tenth of the entire planet. There are all kinds of fire-based elixirs growing in the Purgatory Sea, and it is said that there are 10,000-year-old elixirs in the depths of the Purgatory Sea, but unfortunately, even the Golden Immortals cannot enter the depths of the Purgatory Sea.

"Brother Gu Xuan, when collecting elixirs for a while, don't pick elixirs less than a hundred years old, in fact, the elixirs we pick are all more than three hundred years old, and we can't cut off their roots!" Niu Chongtian said cautiously! Gu Xuan nodded after hearing this, and nodded secretly in his heart, worthy of being a force that has been inherited for a long time, and knows that the water flows for a long time. In fact, Niu Chongtian didn't say that Gu Xuan would keep the elixir that was not enough for his year, after all, Gu Xuan had been inherited by an ancient alchemy master.

"Next, we will act separately, remember that we will come out in three days, you must know that every three days, the Purgatory Sea will erupt, and in these three hours, the entire Purgatory Sea will be filled with fire and poison, even the immortals will retreat, you must remember!" Niu Chongtian explained, and ran towards the Purgatory Sea.

Gu Xuan released his divine sense, and found that there were many cultivators gathered on the edge of the Purgatory Sea, and some of the elixirs were very short, Gu Xuan was a little disdainful, and after a moment of silence, he flew towards the depths of the Purgatory Sea. I'm going to go around the depths myself.

The deeper the Purgatory Sea went, the higher the temperature became, and Gu Xuan ran wildly for an hour before slowing down. The divine consciousness was released, and it was found that there was no one within 10,000 meters, and many elixirs grew in the Purgatory Sea, the year was full of thousands of years, Gu Xuan began to pick them, and none of them were picked for less than three thousand years, Gu Xuan collected a lot of purgatory magma and put it into the Book of Heaven and Earth, creating a purgatory sea of three hundred miles in size, and transplanting all the fire elixirs he picked into it.

With the passage of time, Gu Xuan had entered the Purgatory Sea to a depth of nearly 30,000 meters, and Gu Xuan felt an extremely pure fire aura. Hurriedly speeding up, after a few breaths, Gu Xuan came to the place where the aura fluctuated, but it was an Extreme Flame Flower that was absorbing the fire aura and was about to mature. Gu Xuan approached towards the Extreme Flame Flower, and suddenly Gu Xuan felt a danger and quickly retreated, but it was a lizard covered in flames, more than ten zhang long, roaring at Gu Xuan, spitting out a mouthful of fire poison.

Gu Xuan snorted coldly, and the Soul Falling Secret Technique was used, and the Flame Lizard paused slightly, with a trace of pain in his eyes. Gu Xuan's body moved, appeared next to the flame lizard, and the snake spear stabbed directly into the eye of the flame lizard, and with a snort, the snake spear pierced into its eye, roared angrily, and spewed out a stream of venom with a huge mouth, enveloping Gu Xuan.

Gu Xuan's body was vertical, dodging the venom, and his left palm slapped towards the snake spear, and the snake spear was all submerged into the body of the flame lizard, and the flame lizard rolled in pain in the purgatory sea. The huge tail kept slapping the sea, and the purgatory sea set off a rain of fire for a while, and Gu Xuan stayed away, but it was a pity that the Extreme Flame Flower was lost.

The flame lizard rolled for more than half an hour before it gradually subsided. With a thought, he put the snake spear back, only to see that the flame lizard was only left with a scale armor, and with a wave of his hand, he put it away. The flesh and blood have long been devoured by the snake spear, the flame lizard can survive in the purgatory sea, plus the flame lizard has a cultivation comparable to the merger period, how to say that it is also a treasure, and it can completely refine some defensive spirit armor. Losing the Polar Flame Flower and collecting a Flame Lizard's Scale Armor, you won't lose money if you want to come to this deal.

In the following time, Gu Xuan's actions became more and more cautious, and just after entering the outer depths of the Purgatory Sea, he encountered the Flame Beast of the Merge Period. Further down there may be a flame beast comparable to the Tribulation Period. Then he released his divine consciousness within a radius of a kilometer in Gu Xuan's line of sight, and walked in for a distance, Gu Xuan once again felt a fluctuation of the fire aura, which was even more refined than before. So he hurried over cautiously.

Sure enough, it was another Extreme Flame Flower, which was fully mature, feeling the breath in it, Gu Xuan had already determined that this Extreme Flame Flower was at least 10,000 years old, and his divine sense felt the surrounding area of the Lower Extreme Flame Flower for hundreds of meters, and found that there were no living beings, so he transplanted it into the Heaven and Earth Book by root. For the next three days, Gu Xuan went deep into the Purgatory Sea and picked eleven Extreme Flame Flowers.

Today is the day when the fire poison broke out in the Purgatory Sea, Gu Xuan did not move forward, but found a small island, and stayed, he wanted to feel this fire poison for himself, if he couldn't resist, he would enter the Dao Law Monument, if he could resist, his poison pill could be condensed again.

Just after noon, the entire Purgatory Sea roared and rolled, a trace of black and red flames came out, filling the entire Purgatory Sea, Gu Xuan released the poison pill, absorbed a trace of fire poison, found that the poison pill flickered, and the fire poison disappeared. The overwhelming fire poison converged towards Gu Xuan. They were all absorbed by the poison pill, and in an instant, there was an extra vortex in the sky above the poison pill, and endless fire poison poured in, which was condensed into drops of fire-red liquid by the vortex, and the poison pill directly entered the liquid and devoured it.

Gu Xuan sacrificed the Heaven Swallowing Bottle again, he planned to collect some fire poison, and a vortex also gathered in the sky above the Sky Swallowing Bottle, and began to absorb the fire poison. The time of the fire poison was only three hours, and Gu Xuan didn't dare to waste it, so he tried his best to sacrifice the Heaven Devouring Bottle and devour it.

With the passage of time, the Purgatory Sea gradually calmed down, and the fire poison was not outside, the fire poison within 10,000 meters around Gu Xuan was swallowed up by the two whirlpools, the poison pill felt that the fire poison disappeared, and with a trembling sound, it entered the purple mansion, and as soon as Yuan Ying opened his mouth to suck, the poison pill entered Yuan Ying's body, Gu Xuan was a little stunned, and he didn't know what was going on, and smiled bitterly, there were already too many strange things that happened to him, and Gu Xuan was just a little surprised if there was one more thing!