Because, Xia Xuan's fighting style was originally based on explosion.

The power that erupted in an instant, with the momentum of the wind, directly harvested the battle!

And this "key" is an existence that enhances Xia Xuan's instantaneous explosive power. can cooperate with the other combat skills of the latter, and exert a terrifying power that catches people off guard in an instant, directly reversing the outcome of a battle!

Suddenly "opening the door" under the situation that the other party was unprepared, and suddenly doubling the increased strength, even some people whose strength surpassed Xia Xuan were probably going to suffer a big loss!

And knowing this very well, with Xia Xuan's sensitive fighting nerves, how could he not make good use of it?

After playing with the "key" in his hand with great interest, Xia Xuan immediately smiled faintly, and then, with a palm in his hand, the pitch-black key turned into a black light, rushed into his body again, and regained control in the dantian whirlpool.

After doing this, Xia Xuan stretched out a little lazily, and a smile curled up at the corner of his mouth, originally he thought that if he opened the second floor of the Heavenly God Tower this time, he would lose all his money and get nothing, but he didn't expect that in the end, he still let him get the "key".

Moreover, so far, it seems that the value of this "key" and the help to Xia Xuan will far exceed the previous two thousand spirit soldiers, this harvest can be said to be quite a surprise and an accident.

Slowly stepping out of the dark room, Xia Xuan glanced back behind him again, where the door of the dark room was once again hidden into the pitch-black high wall, which was difficult for people to detect and discover.

Turning around, Xia Xuan glanced at the huge empty space around him. This time he opened the second floor of the Heavenly God Tower, but he was not disappointed, although there was no such terrifying harvest in the first floor, but it was also quite not low.

In addition to getting the "key", he also got such a large space, which can be used as a Qiankun ring, and because of the existence of the Heavenly God Tower, Xia Xuan doesn't have to worry about the things placed here being detected and snatched.

"I've been in retreat here for half a month, and it's time to leave. ”

Smiling slightly, Xia Xuan immediately moved his somewhat stiff neck slightly, and then, a cold luster flashed in his eyes.

Wu Bai!

Half a month ago, while he was seriously injured, he forcibly pressed with momentum, almost making him kneel to the ground!

With such a big hatred, with Xia Xuan's character, how could he swallow his anger!

"Wu Bai, half a month, I really made you wait for a long time! In order to express my apologies, let me prepare a surprise for you......"

Xia Xuan's gentle chuckle slowly came out of his mouth, but the killing intent and ferocity in it made the air around him seem to slowly freeze a little!

When that voice fell, Xia Xuan's figure also suddenly disappeared into the Heavenly God Tower.

......

After the blackstone gate.

Chi Mei gently leaned up on her slender swan-like neck, looking at the door in front of her, which had been closed for half a month, and a trace of worry flashed in her beautiful eyes.

Although she also understands that in this mercenary tower, the probability of some accidents is immeasurable, but her heart is still unable to calm down.

Because, after Xia Xuan's retreat this time, the various phenomena that happened were really a little too weird and abnormal. In the healing layer where he was retreating, the terrifying consumption of spiritual power actually affected the operation of the entire mercenary tower, so how could the red charm not worry?

Although her heart has not been calm for a long time, Chi Mei still has not taken any action.

Because, the walls of this healing layer are all made of extremely strong materials, even if the Yuanzong Realm powerhouse wants to break it, it is not an easy thing to break, after the blockade, it is almost impossible to open, so even if she is very anxious in her heart, she can only wait at this moment.

Today, however, she could not wait any longer.

Because, just a day ago, the energy consumption that seemed to be swallowed by the abyss stopped strangely. In the entire healing layer, there was no movement at all.

And this calm lasted for a day, and the young man in retreat still had no intention of leaving the customs, which also couldn't help but make the worry in the heart of the red charm more and more intense.

What is wrong with Xia Xuan?

If the terrifying energy plundering before was really done by him, then at this moment, the energy plundering has stopped, why hasn't he been out yet?

If the energy predation phenomenon is not his doing, then ...... Could it be that Xia Xuan, who was in the center, had already drained all his strength and died of exhaustion?

The uneasy emotions in my heart became more and more intense, so that the red lips were tightly pursed together. A moment later, she also gritted her silver teeth fiercely, preparing to pass the news directly to the Ye Fu Tower Master who was leading Ye Ling to retreat.

Because, this healing layer is locked from the inside, and if you want to open it, you can only use violent means, and the entire mercenary tower except for the tower master Ye Fu, the others may not have this ability.

Although, this transmission of the news may disturb Ye Ling's retreat, but Chi Mei didn't have much time to hesitate at the moment. Moreover, with the importance that Miss Ye Ling and the tower master attach to Xia Xuan, I am afraid that if they don't tell this matter, they will be furious.

The thought in her heart fell, and Chi Mei no longer had any hesitation, and when she flipped her hand, the communication jade piece appeared in her palm, and it was about to be crushed.

Boom!

However, just as she was about to crush the jade piece to deliver the news, a rather ferocious and powerful Yuan Force momentum suddenly surged out from the healing layer that had been dead for a long time, and there was a loud bang when it hit the black stone door!

This sudden change made De Mei's pretty face change slightly, but then a touch of ecstasy also surged up on her face.

This fluctuation of Yuan Force is Xia Xuan's junior brother!

Boom!

Almost as the red charm shook like this, with a heavy sound, the black stone door slowly opened in the former's somewhat excited eyes.

At the same time, behind the door, the familiar figure of the black-robed young man also slowly emerged.

After half a month of retreat, when the black stone door was opened again, the fresh air from the shop also made De Xia Xuan quite relaxed, he couldn't help but close his eyes, took a deep breath, and a smile appeared on the corner of his mouth.

It's still fresh air outside!

sighed with emotion in his heart, and then, Xia Xuan opened his eyes and looked at the delicate figure of the woman in front of him, and a look of astonishment flashed on his face, and then, the iconic warm smile also appeared on his face: "Sister Chimei, what are you...... Waiting for me to get out of the customs here?"

The young man's slightly playful chuckle came into his ears, making De Chimei feel a kind of pantothenic urge in the circles of his eyes.