"I'll give you one last chance, die or hand over the Heavenly Demon Tiger Bone." Lin Mu said coldly.

"The Nirvana Tribulation is extremely difficult to survive, if there is no Heavenly Demon Tiger Bone, I will also die for a lifetime, it is better to fight to the death." The Earth Splitter gritted his teeth

"Then you just die." Lin Mu said coldly, he didn't have the Tiger Clan's body refining technique to exchange with the Mighty Earth Splitting Tiger, since the other party was unwilling to hand it over, he could only rob it.

The strong Yuan Force condensed into a Vermilion Bird in the sky, and the raging flames enveloped the whole body, exuding an extremely terrifying might.

"I'm willing to hand over the Heavenly Demon Tiger Bone." Feeling the coming of death, the Earth Splitting Tiger finally relented and handed over the Heavenly Demon Tiger Bone, it still had a glimmer of life, if it didn't hand it over, it would have to die now.

"Don't play tricks on me, or I'll let you know that death is sometimes a luxury." Lin Mu said indifferently, and the Vermilion Bird in the sky slowly faded, and finally disappeared.

"Don't dare." The Earth Splitter broke out in a cold sweat and immediately turned back to the cave, and it wasn't long before a sharp and heavy pace sounded in the cave.

The figure of the Mighty Earth Splitter reappeared, carrying a black skeleton more than ten feet long on his shoulder.

With a loud bang, the black skeleton was placed on the ground, and suddenly the entire valley trembled, and even Lin Mu was a little moved by that kind of weight.

The skeleton is pitch black, shimmering with a luster like fine iron, as if it was cast from metal, exuding a fierce aura.

"It is worthy of being one of the three major tiger clans in the demon beast world." Lin Mu was secretly speechless.

Lin Mu put the Heavenly Demon Tiger Bone into the Qiankun bag, and in the unwilling and helpless eyes of the Mighty Earth Splitting Tiger, he left the Beast Valley with Qingtan.

After leaving the Beast Valley, Lin Mu did not leave this primeval forest, but found another secluded valley, because Xiao Lei was ready to attack the Nirvana Realm

Breaking through the Nirvana Realm was very important to Xiao Lei, and even Lin Mu didn't dare to be careless.

"I have enough Nirvana Pill here, you can rest assured to break through." Lin Mu said lightly, and after finishing speaking, he took out a million Nirvana Pills, forming a torrent of Nirvana Pills.

Xiao Lei let out a low roar, casually rushed into the Nirvana Pill torrent, and began to impact the Nirvana Realm.

The Nirvana Pill turned into Nirvana Qi and was continuously inhaled into his body by Xiao Lei, and soon, the rich Nirvana Qi completely enveloped him.

All Lin Mu could do was wait on the sidelines and protect Xiao Lei.

The time for the demon beast to break through the Nirvana Realm was longer than that of humans, and Lin Mu waited for three days, and in the middle, Xiao Lei absorbed the one million Nirvana Pills, and Lin Mu invested 500,000 Nirvana Pills again.

When the light of the fourth morning shrouded over this mountain range, the 500,000 Nirvana Pills were almost absorbed by Xiao Lei.

"Roar—"

A low roar came out of the crimson Nirvana Qi, and then a suction force was generated, and all the Nirvana Qi was swallowed into Xiao Lei's mouth like a thousand rivers returning to the sea.

Xiao Lei's figure appeared in front of Lin Mu again, the crystal armor on his body exuded a faint golden luster, and the wings on his back flashed with a cold glow like a blade.

"It worked." Lin Mu smiled happily.

Xiao Lei did not come, but sat down on the spot like a human, and crimson flames emerged from his body.

"Xiao Lei, is this planning to cross the Nirvana Tribulation?" Qing Tan said with some surprise.

"Only when the demon beast survives the Nirvana Tribulation can it be considered to have completed its true transformation." Lin Mu Road.

In the next half day, the scorching fluctuations that erupted in Xiao Lei's body became more and more terrifying, but fortunately, Lin Mu and Qing Tan had already entered the Nirvana realm, so they were not affected.

When this scorching fluctuation reaches a peak, it slowly begins to weaken again.

As the temperature rose and fell, a thick fog appeared around Xiao Lei, and his vision became extremely hazy.

When the fluctuations disappeared completely, Lin Mu's spirit suddenly perked up, and he looked towards the dense fog, heavy footsteps came out of the thick fog, and then a figure walked out of it.

The moment the figure came out, Lin Mu blocked Qingtan's eyes.

This figure is Xiao Lei after the transformation, almost as tall as Lin Mu, and his appearance is also three points similar to Lin Mu, but he has just transformed and has nothing on his body.

"Put it on." Lin Mu took out a set of his own clothes and threw them over.

"Thanks... Thank... Master. Xiao Lei was still a little unaccustomed to talking, took the clothes, and put them on with a little jerky movements.

"Now that you've been transformed, call me big brother in the future." Lin Mu said with a smile, although Xiao Lei's bloodline was not as good as the Heavenly Demon Tiger, it was a few points stronger than the Earth Splitting Tiger, and he had completely turned into a human form in the first Nirvana Tribulation.

"Big brother." Xiao Lei smiled stiffly.

"Are you Xiao Lei?" Qing Tan looked at the shape-shifting Xiao Lei with some curiosity.

"It's okay to call Xiaolei usually, but you also have to have a surname, just follow my surname, call Lin Lei, I will be your eldest brother in the future, and Xiaodong will be your second brother." Lin Mu Road.

"What about me?" Qingtan asked.

"You're the youngest, and you're still your sister." Lin Mu said with a smile.

"That's fine, I have another brother." Qingtan smiled playfully, revealing two small crescents, and was not dissatisfied because she was a sister.

"Little Lei, do you have a weapon?" Lin Mu asked.

"Nope." Xiao Lei shook his head, with his current strength, he couldn't create a spirit treasure for himself.

"It doesn't matter if you don't, wait until I find the right materials to refine a heaven-level spirit treasure for you." Lin Mu said with a smile, Xiao Lei's bloodline was still a little worse.

"Hmm." Xiao Lei nodded.

Lin Mu's finger pressed against Xiao Lei's eyebrows, and passed Lei Yuangong and Thunder God Body to Xiao Lei.

"This is my cultivation method, and you are also a thunder attribute, so you must be able to cultivate as well." Lin Mudao, Lin Dong can practice the exercises of the dragon clan, and it is not impossible for Xiao Lei to cultivate the exercises of the human race.

"Thank you, big brother." Xiao Lei laughed.

"Brother Lin Mu, where are we going next?" Qingtan asked.

When Lin Mu heard this, he thought about it carefully, there were still several months before the Ancient Secret Treasure was opened, and during this time, he needed to find something to do.

Looking for chance? He didn't have that interest, for him, those inheritances were very chicken, what he needed was Nirvana Pill, a lot of Nirvana Pill.

"Let's go and rob." Lin Mu said with a smile.

"Robbery?" Qingtan was a little stunned.

"The Ancient Secret Treasure will be opened, and the dynasties of the entire Northwest Region, as long as they think they have some strength, will definitely come to this Ancient Palace, and we will definitely have a lot of gains on the way to the Ancient Palace." The corners of Lin Mu's mouth were slightly hooked.

The Great War of the Hundred Dynasties, there were not only a hundred dynasties, but in the northwest region, the number of dynasties exceeded a hundred, and the number of high-level dynasties was not a few.

And with his strength, he doesn't have to worry about any danger, even if he is besieged, he can't be defeated, and it's always okay to retreat.

"Okay." Qingtan smiled playfully, in her bones, she was still a rebellious little witch.

"I'll also help my eldest brother rob them." Xiao Lei said stunned.

"Okay, after Xiao Lei is completely familiar with his body, we will set off." Lin Mu said with a smile.