The mana of Gu Immortal City has reached the level of the first level of the Divine Sea Realm, and it can fight with a first-grade spirit rune master, and it is very easy to kill a nine-rank mortal rune master.

After collecting the belongings of the two of them, Gu Immortal City quickly left this place.

After a short time, Gu Immortal City arrived at the place where the initial retreat and cultivation were placed, and the defensive formation and concealment formation here were still there.

Gu Immortal City entered the cave, and first checked the pockets of the two ninth-grade rune masters, both of them were very poor, and the rune crystals were only more than twenty yuan, and the total was less than fifty.

In addition to the rune crystals, there are also some ordinary spiritual materials, which are not very valuable.

Gu Immortal City put the rune crystal into his treasure bag, and put the rest of the things aside first, and next, it was time to absorb the rune crystal cultivation and improve the rune to the mortal level of the seventh grade!

The Qiankun Immortal Recipe was running, and the mana in the body flowed, like a river running, producing a huge attraction force, and the power of the runes in the void of heaven and earth suddenly surged towards the Gu Immortal City's body.

The power of the runes absorbed from the void of heaven and earth has reached the limit, this is not enough, Gu Immortal City took a piece of rune crystal in his left and right hands, and a steady stream of rune power poured out of the rune crystal, and it was also absorbed into the body by Gu Immortal City.

The rune crystal is condensed by the power of the rune, and the power of the rune contained in it is extremely surging, and the speed of absorbing the power of the rune from the rune crystal is more than ten times faster than absorbing the power of the rune from the void of heaven and earth.

The power of the massive runes was absorbed into the body by the Gu Immortal City and transformed into the power of the natal runes, making the natal runes stronger and stronger, and the cultivation was improved day by day.

When Gu Immortal City was in retreat and attacked the Seven Rank Fan Fu Master, the inner gate of the Xuanyue Sect, Yuan Feiying obtained the news of Gu Immortal City!

Gu Xiancheng has been missing for more than two months, there is no news, no one knows where he went, Yuan Feiying still thought that Gu Xiancheng encountered some danger after leaving the sect and died, but now he got the news that Gu Xiancheng is still alive and well, and his strength has greatly improved, and he injured two mortal-level seven-grade Xuanyue Sect inner disciples, which shocked Yuan Feiying.

Yuan Feiying snorted: "Slave two." ”

A dark shadow entered the room, knelt down respectfully in front of Yuan Feiying, and said, "The slave is here, what does the young lady command?"

Yuan Feiying's eyes sank slightly, revealing a hint of murderous intent, and said: "Someone saw Gu Immortal City in Juyang City, you go to Juyang City to check the whereabouts of Gu Immortal City, and leave no one alive!"

The black shadow said respectfully, "Yes, Miss!"

The black shadow floated away, the corners of Yuan Feiying's mouth curled up slightly, and he said to himself: "Just an outer disciple, he still dares to play scheming with Miss Ben, hmph! Miss Ben wants you to live, you will live, if you want you to die, you will die, see where you can hide!"

Gu Xian Cheng appeared in Juyang City, and Yuan Feiying sent 'Nu Er', thinking that he would be captured, but unexpectedly, when Nu Er arrived in Juyang City, Gu Xian City was like a stone sinking into the sea, and his whereabouts were unknown.

The only news is that Gu Immortal City has entered the Heavenly Rune Mountain Range, and the two Nine Rank Fan Fu Masters who wanted to snatch the Rune Crystal of Gu Immortal City are dead, and both of their heads have been cut off by sharp blades, and the wounds are smooth, and the blow is fatal!

Nu Er spent some money to inquire about the news of Gu Immortal City from the mouth of the talisman masters who returned from the Tianfu Mountain Range, and the result was very surprising, no one had seen Gu Immortal City in the Tianfu Mountain Range!

A single person entered the Tianfu Mountain Range, and no one had seen it yet, there were only two possibilities, either hiding in some inaccessible places on the outskirts of the mountain range, or entering the depths of the mountain range, which was also inaccessible.

In Nu Er's opinion, Gu Immortal City was only a disciple of the outer sect of the Xuanyue Sect, and it was impossible for him to go deep into the Tianfu Mountain Range alone, so he should be hiding somewhere on the periphery of the mountain range.

Although his judgment was wrong, the result was that he had hit, and Gu Immortal City was indeed in a cave somewhere on the outskirts of the mountain range, retreating and cultivating.

It's just that there is a hidden formation in this cave, whether it is a rune beast or a rune master, it is just not above the spirit level, and it can't be found at all.

Nu Er searched outside the mountain range, apparently in vain.

Time passed day by day, and every day in Gu Immortal City, more than ten rune crystals had to be absorbed, and the natal rune patterns were strengthened day by day, rapidly approaching the mortal-level seventh grade.

On the eighth day of the retreat and cultivation, Gu Immortal City had already absorbed more than one hundred and ten rune crystals, and finally, the rune power accumulated by the natal rune pattern had reached its limit, and the quantitative change caused a qualitative change, which was suddenly raised by a notch.

Natal rune pattern, break through to the realm of mortal level seven grades!

Normally, this is already a seventh-grade mortal rune, and the power of the natal rune has been greatly improved compared to the sixth-grade mortal rune, but Gu Immortal City has not yet cultivated a mortal-grade rune!

Feeling the power of the runes in his body, the corners of Gu Xiancheng's mouth curled, revealing an excited smile.

After eight days of retreat, breaking through the seventh-rank mortal rune master, this speed Gu Immortal City was very satisfied, as long as there were enough rune crystals, it would not be difficult to break through the eighth-rank and ninth-rank.

After the breakthrough in cultivation, there were still dozens of rune crystals left in Gu Immortal City, anyway, this place was hidden, he could go out to hunt rune beasts at night, and there was no shortage of food, so he continued to cultivate.

After another four days, Gu Immortal City had refined most of the rune crystals, and the cultivation of the seventh-rank mortal rune master had been consolidated.

There were still more than a dozen rune crystals left, which were not enough to break through the mortal-level eight grades, so Gu Immortal City stopped cultivating, and these dozen rune crystals were kept at the bottom of the box and carried with them.

In the early morning of the thirteenth day, Gu Immortal City left the cave of retreat and headed towards the depths of the Tianfu Mountain Range, where he was about to hunt the mortal-level high-grade rune beasts again.

Breaking through from the seventh rank of the mortal rank to the eighth rank requires more rune crystals than the sixth grade of the mortal level to break through the seventh rank, and this time he needs to hunt more rune beasts.

An hour later, Gu Immortal City had already penetrated more than two hundred miles into the Heavenly Rune Mountain Range, returning to the area where he had hunted rune beasts.

Boom Boom Boom ......

Behind a mountain peak, there was a fierce fight.

When Gu Immortal City heard the voice, he immediately turned over the mountain peak, and his divine sense spread out to investigate.

In the valley on the back side of the mountain, four runes are fighting a leopard rune beast with electric light.

The four talisman masters, two mortal-level eight-rank, and two mortal-level seventh-rank, were all wearing the clothes of the inner disciples of the Xuanyue Sect.

Their strength is not weak, and when they join forces, the rune beasts below the mortal level nine grades are enough to sweep, but the rune beasts that fight fiercely with them are not ordinary, they are the purple electric leopards of the mortal level nine grades!

The speed of the purple electric leopard is amazing, and the thunder and lightning spell is cast in one mouth, and the power is also very terrifying, and the four talismans are not opponents together, and they are forced into the depths of the valley under the mountain peak, and there is almost no way to escape.

Gu Immortal City thought about it for a while, and rushed down from the mountain range next to him, these were four lives, and he naturally couldn't see death when he encountered it.

What's more, these four people are still disciples of the Xuanyue Sect, and they are the same as Gu Immortal City!

After Gu Immortal City broke through the Seventh-Rank Mortal Rune, his rune strength improved again, even if it was a Nine-Rank Mortal Rune Beast, he had the confidence to fight with his rune!