The cultivation in the Xuanbing Cave was still continuing, Ye Feng greedily absorbed the huge aura in the Xuanbing Cave, and was constantly refining the Heavenly Dragon Essence Blood in his body with a cultivation speed that was twice as fast as before.

Ruo Xi once said to Ye Feng that the supreme of the human race does not see an unknown person, and with Ye Feng's current strength, although he can be steadily ranked within a thousand in the outer courtyard, but if he wants to continue to go further in the outer courtyard of Tianfeng Academy, he must have a strong enough cultivation, and the students who can rank within a thousand are all with outstanding talent and strong combat effectiveness, if Ye Feng wants to make a name for himself in the outer courtyard, then he must continue to become stronger.

For this reason, Ye Feng did not dare to slack off in his cultivation, after all, it was an important issue related to whether he could get the inside information of the origin of fire, and besides, if his cultivation was raised, the grasp of obtaining the origin of fire would be greater, and it would be beneficial to himself without harm, so why not do it?

At the beginning, after every two hours of cultivation in the Xuanbing Lake, Ye Feng's body needed to fight or rest once, and after that, this period of time continued to lengthen, slowly increasing from the first two hours, two quarters of an hour, two and a half hours...... Until he stabilized after three hours, Ye Feng would fight with Xuanbing and the Ice Bear once every time he cultivated in the Xuanbing Lake for three hours, so as to activate the meridians and qi and blood in his body, and then continued to cultivate in the Xuanbing Lake.

Xuan Bing never left, just kneeling on the edge of Xuanbing Lake to cultivate, and beside him, the ice bear was lazily asleep.

The Xuanbing Cave seemed to be isolated from the world, Ye Feng began to cultivate without leaving home, and Ruoxi had never been to the Xuanbing Cave, and was silently doing it as soon as he was angry.

Seven days later, Ye Feng in the center of the Xuanbing Lake slowly exhaled a turbid breath, and then opened his eyes, and a fierce cold light burst out from his eyes.

"Hey, hey!"

The corners of Ye Feng's mouth twitched, and a thick joy appeared on his face: "This Xuanbing Cave is really a good thing, and it is very fast to cultivate!"

In these seven days, Ye Feng has refined most of the Heavenly Dragon Essence Blood in his body, and only a little bit of stubborn Heavenly Dragon Essence Blood is still coiled in Ye Feng's dantian, but it seems that it won't take too long for Ye Feng to be able to completely refine this small part of Heavenly Dragon Essence Blood, and then he will be able to be promoted to the level of high-level martial spirits.

Originally, it would take fifteen days to cultivate in Ye Feng's special attic spirit gathering array, but now the time in this Xuan Ice Cave has been reduced by half, which made Ye Feng ecstatic.

"According to the cultivation progress, it only takes two more hours to be able to completely refine the Heavenly Dragon Essence Blood!"

Ye Feng grinned, with a faint smile on his face, as long as all the Heavenly Dragon Essence Blood was refined within today, then Ye Feng's cultivation would be able to be promoted to a high-level martial spirit!

The water of the Xuanbing Lake around him scattered and splashed in all directions, Ye Feng slowly stood up, stretched comfortably, and crackled his bones.

Xuan Bing on the edge of Xuanbing Lake slowly opened his eyes and said lightly, "Still coming?"

"Of course!" Ye Feng grinned: "This time it won't be like before." ”

"Is it? so confident?" Xuan Bing's expression was still flat, and he slowly stood up, and the ice bear beside him roared lazily, then got up and yelled at Ye Feng dissatisfiedly.

Ye Feng smiled: "I'm sorry, it seems to disturb your Xiaoice rest." ”

Xuan Bing said lightly: "It didn't have a good temper when it just woke up. ”

"Yes, it doesn't matter, it's supposed to be the last time. Ye Feng couldn't help but smile, standing on the Xuanbing Lake with his feet, the violent momentum was suddenly released, and the huge momentum of the primary-level martial spirit emanated, and the terrifying aura was terrifying.

Xuan Bing's eyebrows raised slightly: "You are getting more and more used to this Xuan Bing Lake!"

"Hehe!" The corners of Ye Feng's mouth twitched, and a faint smile appeared on his face, in the course of these seven days, the Xuanbing Lake has less and less restraint on Ye Feng, with the powerful effect of the Heavenly Dragon Essence Blood in Ye Feng's body, Ye Feng's ability to resist the erosion of the Xuanbing Lake Lake is getting stronger and stronger, and today, Ye Feng has been able to exert eighty percent of his combat power, which is almost the level of the peak of the primary martial spirit, and it has made great progress compared to before.

"Come on, let's see if you can get your first chance to rest!" Xuan Bing said lightly.

"Gotta get!" Ye Feng smiled.

"Let's start!" Xuan Bing said indifferently.

"Then you're welcome!" A small air vortex appeared under his feet, Ye Feng screamed, and the soles of his feet slammed into the lake, and the whirlpool turned slightly, and his figure had disappeared in place.

Xuan Bing's expression suddenly sharpened, and with a wave of his hand, two ice spikes were quickly formed.

Whoosh!

Two ice spikes shot at the empty void in front of them.

Suddenly, a faint black shadow suddenly appeared in the originally empty void.

"It's another trick!"

Ye Feng smiled, his figure disappeared in place strangely, dodging two ice spikes like a ghost, and rushed towards Xuan Bing again.

Xuan Bing's brows furrowed slightly, a flash of appreciation flashed in his eyes, and then with a wave of his hands at the same time, the four ice spikes and lightning gangs condensed, and stabbed towards Ye Feng at a very fast speed.

"It's not going to bother me!"

Ye Feng laughed heartily, the whirlpool on the soles of his feet continued to rotate, and his body flashed on the surface of the lake like a ghost, leaving behind afterimages.

Puff puff! Four images in a row disappeared into the air like soap bubbles under the attack of the ice spikes.

After the four ice spikes passed, a black shadow appeared in front of the ice spikes, one flashed, leaving an afterimage on the spot, and suddenly appeared on the edge of the Xuanbing Lake across a distance of dozens of zhang, and smashed it into Xuan Bing's chest with a terrifying punch.

"You're so much faster!"

Xuan Bing smiled faintly, his figure flashed suddenly, and he disappeared in place, and at the same time, an angry roar came, and the ice bear took a step forward, met Ye Feng head-on, and slapped Ye Feng viciously.

"Hey, hey!"

The corners of Ye Feng's mouth twitched, a faint smile appeared on his face, he withdrew his right fist, and then his figure moved slightly and suddenly disappeared in place.

Boom! The ice bear slapped the shore of the Xuanbing Lake, and the solid ice suddenly burst open.

Ye Feng's figure appeared above the ice bear's head in a flash, and landed firmly on the ice bear's head.

Ice Bear was slightly stunned, then quickly shook his head, trying to shake Ye Feng off.

Ye Feng stood firmly on the head of the ice bear, his body did not move at all, and he couldn't shake off the ice bear.

Xuan Bing's figure slowly appeared beside the ice bear, and said with a faint smile: "You have passed!"

Ye Feng smiled, his figure jumped up, and landed heavily on the ice.

As soon as he fell to the ground, Ye Feng gasped for breath, and then his body fell down and lay on his back on the ice.

"It's so comfortable!"

Ye Feng narrowed his eyes and groaned, there has never been such a comfortable scene in seven days, which time was either knocked out by Xuan Bing or slapped out by the ice bear, except for the short time of more than ten breaths of fighting, Ye Feng had almost no time to rest in two or three hours, and he was completely cultivating without sleep, this time he was able to pass the test because of his adaptation to Xuan Bing Lake, he was able to exert eighty percent of his strength, and the fighting energy in his body was barely enough, so he was able to pass Guò.

Although the ice surface was cold, it was still inferior to the extremely cold Xuanbing Lake, and Ye Feng lay comfortably on the ice and was reluctant to get up again.

Xuan Bing smiled faintly and did not speak.

A quarter of an hour later, a slight snoring sound sounded in the Ice Cave.

Xuan Bing was slightly stunned, and couldn't help but turn his head to look over, only to see Ye Feng, who was lying in a large shape on the ground, suddenly fell asleep and began to snore.

"............" Xuan Bing was speechless, and did not wake up Ye Feng, but turned his head away, and quickly cultivated with his hands, as for the ice bear, he had already lazily fallen asleep on the ground.

Ye Feng was indeed tired, in the more than 20 days after coming to Tianfeng Academy, the early morning time was spent training, and after going back, he was practicing the low-level martial art "Xuanfeng Palm" or alchemy, or he was cultivating and refining the essence and blood of the Heavenly Dragon in his body, Ye Feng spared no effort to cultivate.

The cultivation days in the Xuanbing Cave are even harder, on average every two to three hours, Ye Feng only has a dozen breaths of combat time, that is not a time to rest, it is completely uninterrupted from day to night, and there is only more than a hundred breaths of combat time a day, and there is no chance to rest, such days have lasted for six days, and now it is the seventh day, and finally got the opportunity to rest, Ye Feng was so tired that he fell asleep when he lay on the ice.

Ye Feng had a faint smile on his face in his sleep, as if he was having a sweet dream.

Xuan Bing didn't disturb Ye Feng and let him fall asleep naturally.

Four hours later, Ye Feng's eyelashes moved, and then he slowly opened his eyes, his eyes full of confusion.

Gently tapping the ground with both hands, Ye Feng's figure flipped three hundred and sixty degrees in the air and landed firmly on the ground.

Xuan Bing slowly opened his eyes and said lightly, "Woke up?"

"Hmm!" Ye Feng smiled.

"Let's continue cultivating!" Xuan Bing said lightly, and then closed his eyes again to regain his cultivation state.

"After sleeping for so long, it's time to refine the last Heavenly Dragon Essence Blood!"

A look of anticipation appeared on Ye Feng's face, and the soles of his feet kicked the ground, and his figure jumped up and landed in the center of the Xuanbing Lake, splashing in all directions.

"Here we go!"

Ye Feng's hands quickly sealed, slowly closed his eyes, entered the cultivation state, and began to refine the last remaining Heavenly Dragon essence blood.