It had been a day since I had returned to the location of the Grey Castle from the Southwest.

Standing in front of this building that has stood for an unknown number of years, Tang Feng couldn't help but sigh a little. This sect was probably considered a strong party in the past, but people are in misfortune and blessings, and there are always some unexpected things that cannot be resisted by manpower, resulting in this huge sect not even having a single figure at the moment.

This world is like this, not to mention the inside of the White Emperor's secret realm, let's talk about the outside world, it is also a situation where a generation of new people replace the old, and the waves behind the river bury the waves in the front. If the seniors don't die, how can the juniors shine?

The predecessors and masters who were in the limelight back then, after hundreds of thousands of years, who can remember them, fame, prestige, wealth, and wealth have long disappeared, and there are very few people who still vaguely remember. Now there is only an empty sect left in this gray castle, and only the plaques hanging horizontally on the two sky-high dragon pillars in front of Tang Feng record the name of this force that was once resounding.

When Tang Feng sighed, Lei Xiang couldn't wait to rush to the inside of the Gray Castle, but the strange thing was that outside this sect, there seemed to be an invisible wall blocking Lei Xiang's pace.

Lei Xiang tried hard several times, but he was bounced back by an invisible force every time, and he was extremely confused for a while, a little confused, and looked at Tang Feng with a blink of a bull's eye and a puzzled look.

He has lived in the secret realm of the White Emperor since he was a child, and he is short-sighted, so he naturally can't understand why all this is. Tang Feng had never encountered this kind of thing, but he at least knew more than Lei Go, and after testing it a few times, he realized that the entire sect of this Gray Castle was wrapped in a layer of soft energy, this layer of energy was extremely tough, although it was soft, it was impermeable, and after thinking about it slightly, he understood that this layer of energy was probably the guardian of the Gray Castle.

It should be a formation or something, and a guarded enchantment is arranged. If outsiders are not allowed to open the law, they will not be able to enter at all.

This is also the reason why the Bai family has explored the White Emperor City for thousands of years, although these places are present, they cannot be entered.

Tang Feng has never been in contact with this kind of thing, but the Four Seasons Killing Array can also be regarded as a sword formation method. After Tang Feng got the White Emperor Seal, he could naturally learn from it, but he didn't have any free time these days, so he didn't learn this thing, he just wanted to wait for the future to be free and study it again.

The Four Seasons Lore Sword is definitely a set of top swordsmanship, wrapped in the power of the four seasons, alternating between cold and summer, the cycle of life and death, killing and invisibly, this set of swordsmanship Tang Feng is naturally very interested in power

But this gray castle has been at least a thousand years old, and the enchantment it guards is still intact, which is a bit beyond Tang Feng's imagination.

But in any case, after all, after all, such a long time has passed, even if this enchantment still has an effect, it must have weakened a lot, and with the actual realm of the lower grade of the Thunder Spirit Rank and his current strength, it may not be impossible to break it.

Thinking of this, Tang Feng said to Lei: "Brother Niu, I have never touched this thing, but since it is composed of a layer of energy, then there will definitely be a limit to the force, why don't you attack it and try the strength of this layer of energy." ”

It's a stupid idea, but it's the best way right now.

Lei Xiang nodded and said, "Okay, Brother Feng, you should stand back." ”

When Tang Feng heard him say this, he knew that he was going to show all his strength, the full strength of the seventh-order spirit beast, even if it was the aftermath, the power should not be underestimated, and at that moment Tang Feng withdrew more than ten zhang away, running a whole body to protect his whole body, wanting to wait for Lei to come out and test it once before making a conclusion.

Lei walked high and raised the Heavenly Thunder God Wooden Sword, the sword body and his naked upper body were entwined with electric sparks, and the momentum was climbing day by day, and the heaven and earth were suddenly filled with a daunting heaviness, and the stones and broken soil on the ground actually slowly floated up.

Lei Xiang rushed to the crown angrily, the green tendons on his forehead were exposed, and when he climbed to the top with a momentum, he shouted angrily, and then the Heavenly Thunder God Wooden Sword in his hand turned into a ray of light and slashed down.

"Break it for me!" Lei walked with all his strength, and the Heavenly Thunder God Wooden Sword smashed into the void, and a circle of ripples that could be seen by Rou's eyes suddenly appeared in front of him, and this circle of ripples quickly spread out in all directions, shaking the mountains for a while, and the violent aura rolled up, like a sudden wind, blowing Tang Feng's clothes rattling.

Tang Feng's eyes sank, although his current invisible barrier had withstood Lei Go's attack at one point, it quickly dispersed this attack to other places, causing Lei Go's all-out attack to only cause a layer of ripples.

Yifeng failed, Lei Xiang was not discouraged at all, and the Heavenly Thunder God Wooden Sword smashed countless times with lightning speed, each time it smashed with a banging sound, and the circle of seams kept spreading outward.

I don't know how many times I smashed it, but just when Lei Xiang wanted to give up, he heard a crisp click, a sound, like a mirror cracking, and then in front of him, a trace of crack appeared in the position where the Heavenly Thunder God Wooden Sword came into contact with the void.

Lei was overjoyed when he saw this situation, knowing that victory was in sight, and he became more and more ruthless.

Several more attacks fell, and in a crisp sound, Tang Feng and Lei Lu only saw that cracks like spider webs suddenly appeared in the air, and these cracks were spreading in all directions, and in less than a moment, these cracks wrapped the entire place where the Gray Castle was located.

"Boom, with a bang, the energy barrier wrapped around the outer perimeter of the Gray Castle was finally broken.

At the same time, the two dragon pillars standing in front of Tang Feng and Lei walked turned into powder, and they floated down from the air, crystal clear, and they were spectacular and beautiful.

"It's done?" Lei Xiang said with a smile on his face, turning his head to look at Tang Feng.

Tang Feng gave him a thumbs up and nodded, "It's done." ”

Tang Feng really didn't expect it, he just wanted Lei to come out and test it, but he really broke this enchantment, and it was because it had been too long.

Lei Lu is also a seventh-order spirit beast, which is equivalent to a spirit level master, and with all his strength, he can break an enchantment countless years ago, which is reasonable.

Now the entire Gray Castle is not defended at all in front of Tang Feng and Lei Go, and Tang Feng's heart is firm, and he can't help but have some expectations at this moment, I don't know if there are any good things in the sect countless years ago.

"Let's go in and have a look. Lei took the lead, carrying the Heavenly Thunder God Wooden Sword, and swaggered into the Gray Castle, Tang Feng smiled slightly and kept up with his pace.

The layout of the houses inside the fort is no different from the outside, the road is straight, paved with blue stone slabs, and it is unusually spacious enough to accommodate five horses.

Walking here, you can vaguely feel the majesty and voice of this ancient sect

The two of them didn't have any special destination, they met a room on the way and went in to have a look, but to the disappointment of the two, not only was there no one here, but there were not even some precious things, Tang Feng showed some yellow, white and soft, gold and silver jewelry, but these ordinary money and his expectations were really a little different.

After walking a full street, this is the case in every room, Lei Xiang couldn't help muttering: "There is really no one here, I am looking forward to it." ”

He was so excited to enter the Gray Castle that he wanted to find traces of human beings, but now he couldn't find it, so he was naturally extremely disappointed.

Tang Feng didn't know how to comfort him, it was already expected that there were no Tao people in the White Emperor's secret territory, and it would be strange if there were human beings.

It took another half an hour, and the two walked another street, Lei walked more and more depressed, and the whole person had no energy, but Tang Feng was still tirelessly exploring.

Walking down two streets, I didn't find anything precious, but there was a lot of money in Tang Feng's phantom space. Inside the Gray Castle, it is like a city, with all kinds of shops in it. However, after such a long time, the things in these shops have already turned into powder, and the wind blows and drifts around.

For example, in a medicine shop, Tang Feng did realize a lot of spiritual herb elixirs, but he couldn't pick them up at all, those spiritual herbs and elixirs had been exhausted, and they were pinched and crushed when they started, which made Tang Feng feel sorry and distressed for a while.

Another room was pushed open, the wooden door was almost pushed apart by Tang Feng, the gray castle looked well-preserved from the outside, but the house inside had some signs of decay.

Sweeping around, Tang Feng didn't have any expectations, but something special appeared in this room.

It was a skeleton of Bai Sensen, lying on his side, wearing a gray shirt, and his abdomen was poked with a sword-shaped weapon, and dried blood stains could still be seen on the shirt.

Tang Feng bent down to pick up this weapon, felt it slightly, and now this was actually a weapon of the Gang soldier level, raised his eyebrows, and put it into the phantom space.

Although the gang soldiers are not valuable, not everyone has them. In the hands of ten cultivators, on average, only one person can have Gang, and it is good to take this thing back and give it away.

This person didn't know how he died here, it looked like he had been killed, could it be that there was some kind of civil strife in the Gray Castle back then? Or did he escape from the thousand-year-old burial ground and died here? Tang Feng didn't know why, but he preferred the latter.

Reaching out and searching the man's clothes lightly, the gray clothes were also shattered at the touch, only to hear a clanging sound, and something fell from the man's clothes to the ground.

Tang Feng fixed his eyes and saw only a stone about the size of a child's palm, crystal like jade, white and flawless.

"This is ......" Tang Feng picked it up casually, sensed it slightly, and then his face changed greatly, because at that moment, he actually felt a surging and pure aura from this stone, and this surging aura was not at all like a small stone like this could come out.

Immediately, Tang Feng's eyes lit up, and he lost his voice: "Spirit Stone?,****