Three hundred miles east outside the Flame Demon City, Xiao Yufan said goodbye to the Burning Invincible and embarked on the road to Frost Burning City, another main city of the Demon Realm in the Northern Regions.

Frost Burning City, one of the nine main cities of the Demon Realm.

He also has a Demon Fortune Tablet to suppress the luck of the Demon Realm, and the person who dominates the city is Ao Xuan, one of the three major personal disciples under the throne of the Heavenly Demon Emperor.

It is said that Ao Xuan had entered the Holy Period three years ago, and had just stepped into the Holy Period, that is, he was ranked eighth on the Holy Emperor List, which can be called an unprecedented accumulation.

As the leader of the ancient witch clan, Ao Xuan is also known as the "Great Witch Who Covers the Sky", and all of the above is not the most eye-catching aura on Ao Xuan.

What really makes him famous is that Ao Xuan, who has the blood of an ancient witch, is the number one formation master in the demon world today.

He is the only second-grade great master of the five domains of the demon world, Ao Xuan's attainments in forming arrays, even if he is his teacher, the Heavenly Demon Emperor who has ruled the demon world for tens of thousands of years is not as good as it, which can be seen from this.

It is precisely because of this that while being one of the nine main cities of the Demon Realm, Frost Burning City has gradually become a city of formation that thousands of formation masters yearn for under the vigorous promotion of Ao Xuan, the great master of formation.

If anyone wants to make progress in the formation science, or get involved in the formation of formations, then Frost Burning City is definitely the best choice to look at the five domains of the Demon Realm.

When he was in Donglifang City, Xiao Yufan received a gift from Zhou Qingzhi and learned Qing Xuzi's "Eight Decisions for Forming a Formation", which opened the door for him to build a formation.

And in the Nine Tribulations Medicine Realm, Xiao Yufan only relied on the most basic solid rock formation, and single-handedly ransacked more than a dozen powerhouses of the same level, although the right time and place were very critical factors, but they could not erase the strength of the formation formation.

Xiao Yufan, who had already regarded the entire Great Freedom Demon Sect as an imaginary enemy, knew very well that if he relied on himself, he would not be able to reunite with Yumo until the Year of the Monkey, but the formation science gave him a glimpse of an opportunity to outnumber the enemy and defeat the strong with the weak.

Therefore, Frost Burning City has undoubtedly become Xiao Yufan's first destination choice to rapidly expand his strength.

Since he has not yet reached the stage of knotting, Xiao Yufan has not yet been able to escape the light, but at this moment, his speed on the ground is probably not inferior to the speed of the early stage of the knotted pill monks.

Xiao Yufan not only has the growth rate of the wind origin spell "Qinglan Po", but also willfully blesses himself with the four-grade "Wind God Rune" worth more than 10,000 top-grade spirit crystals, making his land travel speed at the moment extremely fast.

The territory of the demon world is vast and vast, and the landform is even more strange, Xiao Yufan identified the direction and ran all the way, turning over the mountains and wading in the water, without taking the slightest detour, and in the blink of an eye, two days and nights have passed.

And instead of feeling the slightest tiredness, he had an incomparably hearty feeling rippling in his heart, and a faint feeling of wanting to break through.

This "feeling of breakthrough" does not originate from the body, but from Xiao Yufan's physical body.

When this incomparably hearty and strange feeling surfaced again, Xiao Yufan keenly captured something similar.

"This feeling is clearly the feeling I felt when I fused one percent immortal spirit bone for the first time!"

"By the way, I have now crossed a great realm, stepped into the early stage of foundation building and have completely consolidated my cultivation, according to what the master said, every time I ascend to the great realm, I can completely fuse some immortal spirit bones."

"It's just that I couldn't do it before, and I couldn't imagine that I was desperately rushing by mistake, but it inspired the further fusion of the immortal spirit bone with itself. ”

With a realization in his heart, Xiao Yufan even intensified his efforts to squander all kinds of valuable growth talismans, in addition, he was also very extravagant in swallowing the expensive elixir that replenished the true yuan power, while rushing frantically without stopping, squeezing every bit of energy in his hundreds of millions of cells.

If you look down from the sky at this moment, you can catch a glimpse of a white light like lightning, dragging out a long series of blurred lights and shadows, flying in a straight line across the vast land at a terrifying speed.

2 percent, 3 percent, 4 percent, 5 percent

After running so desperately for seven days and nights, Xiao Yufan finally stopped, half-covered his violently undulating chest, and sat down on the ground.

"It's a pleasure!"

"The body can no longer feel the feeling that it is about to break through, and the fusion degree of the immortal spirit bone has reached the peak of the foundation building stage, ten percent. ”

"In the past, I only fused one percent of the immortal spirit bone, and my physical body was comparable to the troll royal family, but now I don't know what kind of situation I can go to"

More than 100 miles away from Xiao Yufan's location, a black light pierced the sky, rapidly approaching Xiao Yufan's location.

The one who controls the light is a purple-robed monk with an incomparably feminine appearance.

At this moment, the person who came was frowning, with a puzzled expression, and muttered to himself: "Why did the white light mark below before not lose the speed of my light, could it be that there is a strange treasure in the world?" ”

The purple-robed monk had the heart to find out, and the speed of the light increased sharply, and in the blink of an eye, he had already arrived in the sky above Xiao Yufan's residence, and his divine sense spread like an octopus, wanting to search for the white light trace that he had just glimpsed.

However, to the disappointment of the purple-robed monk, the white light marks seemed to have never appeared, and there was no trace at all.

But in addition to the disappointment, a hideous smile appeared on the purple-robed monk's feminine face.

"I actually met this half-blood demon clan's foundation building ant in the poor mountains and bad waters, and my son doesn't mind sending you on the road. ”

The purple-robed monk was Lu Qing, a disciple of the Netherworld Mountain who wanted to buy the second-grade spirit talisman on Zhu Hao's waist in the Flame Demon City.

He passed by here and accidentally caught Xiao Yufan, who confronted him at the beginning, and finally forced him away with the momentum of the half-step supreme saint.

is the so-called enemies who are blushing when they see each other, not to mention that Lu Qing is already a late-stage cultivator, and meeting a monk like Xiao Yufan in the early stage of foundation building is as simple as squeezing an ant to death, at least in his opinion, how can he let it go.

At this time, Xiao Yufan, who was immersed in the joy of ten percent of the fusion of the immortal spirit body, did not know that disaster had fallen from the sky.

"The boy surnamed Xiao, this time let's see if there is any half-step supreme saint who rescues you from danger!"

Suddenly, Xiao Yufan's heart shook violently, and the crisis sense cultivated over the years in the Blood Wasteland made him move out more than ten zhang as soon as he heard the sound, and habitually burned a large number of defensive spirit runes to bless his body.

Almost at the moment when Xiao Yufan moved away, the position where he was stationed was covered by thousands of black light rains.

The black light rain touched the solid surface like debris, piercing through the small holes of unknown depth, and emitted bursts of chilling cold aura, causing the surrounding temperature to plummet to freezing.

It is foreseeable that if it weren't for Xiao Yufan's crisis sense, even if he fused ten percent of the immortal spirit bones at this moment, he would have become a corpse full of holes.