The journey from Black Wind City to Tianwu Imperial City was a long one. Even if the Spirit Crane flew at full speed, it would take two days and one night..

However, if it was an airboat, it would only take half a day!

However, it consumed a lot of spirit stones, about 200,000. Without enough strength, if he used the airboat forcibly, he would burn money..

The secret realm of the Northern Wilderness Sword King was not in Tianwu Imperial City, but in a barren mountain not far from the Imperial City. Even Lu Yuan did not expect this..

"Who would have thought that the inheritance of the Sword King of the first generation would be hidden in this unremarkable barren mountain?.”

Lu Yuan began to activate the Void Token..

The entire Void Token turned into a pitch-black stream of light, like a key. Suddenly, a strong light exploded towards the ground. When the light dissipated, a secret realm emitting intense sword light appeared in front of everyone..

" Chu Xuan, be careful. It might be a sword tomb inside!" Lord Pagoda reminded him in a deep voice. The sword tomb was a place where sword cultivators buried their swords. It was extremely dangerous..

Chu Xuan was a sword cultivator himself. Not only was he not afraid of the sword qi in the sword tomb, but the true essence in his body was also restless. Sword 11 was the same..

Beichen, Wu Shuai, and the others had solemn expressions. Even if they weren't Swordsmen, they could still feel the shocking killing intent inside..

Lu Yuan quickly comforted him,"Don't be afraid. Just do your best. If you encounter unpredictable risks, I will take action.".”

Beichen and the others were relieved..

Then everyone stepped into the sword tomb together.

It was a huge blood-colored space, similar to the Blood Demon Space. However, the Blood Demon Space only refined corpses. However, in this Sword King Tomb, terrifying sword lights were buried..

You can even see a lot of white bones around you..

To be safe, Lu Yuan placed a True Essence Shield of the Airborne Realm on each of them. Only then did he say in a deep voice," Now, you can start your training. If I'm not mistaken, the Sword Qi in front should be the test left behind by the Sword King. If you pass, you will receive the inheritance. If you fail, you will die!"

Boom!

As if to confirm Lu Yuan's words.

As soon as everyone stepped into the range of the sword qi, the surrounding void began to tremble violently. Broken swords stabbed into the ground exploded crazily like a rainstorm..

" This is actually a killing sword formation. The test of the Northern Wilderness Sword King is not ordinary!" Lord Tower quickly reminded him..

Actually, there was no need to remind him. Just by seeing dozens of terrifying sword lights whistling towards him, Chu Xuan was already fully alert. He also condensed sword lights in his hands and collided with the sword lights in the sword formation..

Jian Shiyi, Beichen, Wang Chao, Wu Shuai, and the others also resisted one after another. However, the more they resisted, the more violent the sword light in the sword array became. At first, it was only a low-grade Earth grade sword light, but soon it rose to a middle-grade Earth grade, and then a high-grade Earth grade sword light..

The weakest, Zhang Xue and Liu Feifei, were rapidly depleting their true essence, and their protective true essence was also on the verge of collapse. Lu Yuan took a look and quickly reminded them,"

If you can't hold it, come out..”

Otherwise, once the true essence shield shattered, even he would not be able to save her..

Hearing this, Zhang Xue and Liu Feifei quickly retreated. As soon as they left the sword formation, the protective shield on their bodies shattered. The two women could not help but spit out a mouthful of blood, but they did not have time to wipe it off. They only looked nervously at the people in the sword formation..

At this moment, as they retreated, the power of the sword formation did not weaken. Instead, it became more and more violent. In just a dozen breaths, the power actually increased from Earth Grade Upper Class to Heaven Grade Lower Class..

Wow!

Duan Ang couldn't resist anymore. Blood spurted out of his mouth and nose. He hurriedly retreated and barely withdrew from the sword formation. Lu Yuan was so shocked that he broke out in cold sweat. This sword formation was even more terrifying than he had imagined..

Lu Yuan tried to get closer, but he realized that he was only ten meters away from the sword formation when a terrifying killing intent locked onto him. If he dared to get closer, he might be destroyed by the sword formation..

As expected of the Northern Wilderness Sword King.

If this person were in the Northern Wasteland, I wouldn't be a match for him even in my prime..

. Lu Yuan shook his head helplessly. He knew that this sword formation was specially set up by the Northern Wasteland Sword King for juniors below the Airborne Realm. They, the elders, could not interfere at all..

This is also the reason why no one in the Tianwu royal family has ever passed the test..

Because the sword formation is too powerful.

Duan Ang was not the only one who lost. A moment later, Beichen was unable to withstand it and retreated continuously. Wang Chao and Wu Shuai followed suit. They were not sword cultivators, and it would be difficult for them to hold on for too long in the face of this endless sword formation..

Only a quarter of an hour later, Wang Chao, who was already injured, could not hold on first, and then Beichen and Wu Shuai had no choice but to give up..

Only Chu Xuan and Jian Shiyi were left in the sword formation. Both of them were sword cultivators and had their own understanding of sword principles. It was also possible for them to pass the test of Sword King..

But there's also the possibility of failure..

However, neither of them chose to retreat. Suddenly, Jian Shiyi released his sword intent in an attempt to block the sword formation. Chu Xuan did the same. Their sword intent was as strong as steel, blocking the surrounding sword light again..

Seem to sense the strength of the two.

At this moment, the power of the sword formation increased once again. It suddenly rose from low grade Heaven Grade to middle grade Heaven Grade. This was already the limit that Sword Eleven could resist..

His expression changed drastically. He wanted to continue to persevere, but dozens of terrifying sword lights stabbed down at the same time, which was equivalent to dozens of aerial masters attacking at the same time..

Sword 11 was unable to stop him at all. He could only retreat unwillingly." Brother Chu, I can't hold on anymore. I'm relying on you.".”

Whoosh!

Sword 11 quickly withdrew from the sword array.

In the end, Chu Xuan was the only one left in the entire sword formation. All the sword lights in the formation had also targeted Chu Xuan and were aimed at Chu Xuan from all directions..

" Not good, Chu Xuan's retreat is blocked by the sword formation!" Duan Ang's eyes were filled with fear..

If his retreat was blocked, it meant that Chu Xuan could only advance without retreating in the sword formation..

Lu Yuan could not help but clench his fists.The Tianwu Emperor's eyebrows were twitching wildly. Chu Xuan was already the strongest genius recognized by the royal family. If Chu Xuan could not pass the Sword King's test, then the entire Tianwu royal family would really be exterminated..

Moreover, it was not only the Tianwu Royal Family, but also the Chu Family!

If the Imperial Family was destroyed, the Chu Family would definitely not be able to escape!

" The only way to prevent the Chu Clan from being implicated is to pass the test of this sword formation. Sword of Lightning, cut it down!"

Rumble!

Within the sword formation, Chu Xuan was no longer merely defending. He even launched a counterattack. He released endless dragon sea and waved lightning to destroy the sword light. At the same time, he began to take large strides towards the end of the sword formation..

a hundred paces.

two hundred paces.

three hundred steps.

five hundred paces.

thousandth step.

Boom!

When Chu Xuan reached 1,000 steps, the dragon sea in Chu Xuan's body dried up. At this moment, the sword formation finally stopped operating..Suddenly, a tall, blood-haired man with a blood-red sword appeared in the sword formation. His eyes were like torches as he stared fixedly at Chu Xuan." I am the Northern Wilderness Sword King. Not bad Sword of Lightning. No wonder I was able to break my Thousand Killing Sword Formation!"

" But you're not from the Tianwu Royal Family. Who are you and why are you here?"