This is a rocky area, and the area of the stone field is not large, about one square kilometer in circumference. There is no grass on the stone floor, and there are deep marks on the exposed stones.

In the middle of the stone floor is a large hole with a diameter of about three meters.

The entrance to the cave is directly exposed to the ground and is not covered in any way. Gusts of wind whistled and blew out of the hole and swept towards the ground. Outside the Gangfeng, small cracks in the space were faintly visible, cutting through the space. The dark entrance of the cave, at a glance, you can't see the bottom at all.

A layer of formation is arranged on the outside of the entire stone field, isolating the stone ground from the surrounding area.

It can be seen that the outside of the entire stone ground should be a relatively large high-level formation. However, perhaps because of the invasion of time, or because of the vicissitudes of life, most of this formation has been eroded, and the remaining part is less than one thousandth of the original power.

Ling Bing herself was not proficient in formations, even if there was only one thousandth of the formation left, it was enough to stump her. There is an old saying in the Blue Star that when God opens a door to a person, he will inevitably close a window for him. Ling Bing has a super comprehension of Danshu, and he is contemptible to the point of being a novice in the battle ground. If she was the first to discover this formation, it was estimated that she would not be able to come in at all except to break the formation.

However, fortunately, the first person to discover the formation here was not Ling Bing, but the Thorn Ghost. Although the assassin ghost didn't know the formation, after all, he had seen a lot from other advanced civilizations in the universe, and he had already figured out the correct way to move in other ways.

According to the way the assassin walked in his memory, Ling Bing really stood about fifty meters away from the cave.

She scrutinized the entrance to the cave. From the memories of the thorny ghost, Ling Bing knew that this cave was impossible to enter at all. Whether it's a mecha or an elemental shield, as long as you get close to the hole, you will immediately be blown out of the cave and turned into pieces.

Ling Bing didn't dare to stretch out his divine sense to investigate. These Gangfeng are very strange, not only can they smash all the substances that are close to them, but even their divine consciousness and spiritual power cannot escape the crushing and strangulation of Gangfeng.

For a moment, Ling Bing was a little hesitant.

Gangfeng is powerful, she knows in her heart that with her Jindan stage body, as long as she is close, she will definitely only have the share of strangulation.

However, she was unwilling to give up and leave.

In fact, the appearance of Gangfeng is a very abnormal thing in itself. Gangfeng does not appear everywhere, it needs some necessary conditions for its appearance, under normal circumstances, only those places where the space is extremely unstable, there will be Gangfeng. In the final analysis, in fact, the so-called Gangfeng is nothing more than some dense spatial blades.

This shows that under this big hole, there must be a place related to space. It could be a broken space, or it could be a treasure, or something else related to space.

But how do you get in?

Ling Bing was worried.

With a wave of her hand, she used her spiritual power to roll up a large boulder not far away, and threw it towards the entrance of the cave.

No sooner had the huge stone been thrown above the mouth of the cave than a gust of wind whistled and rolled up, and almost instantly, the giant stone was turned into powder. The fine dust floated lightly at the entrance of the cave, like a layer of white mist.

Ling Bing's heart jumped.

What a powerful gangfeng!

Although she is in the Jindan stage and has spiritual power to protect her body, there is no guarantee that under the strangulation of Gangfeng, the spiritual shield can hold out until she falls to the bottom of the big hole.

Ling Bing stared at the layer of fine dust floating in the air, and really didn't want to give up.

The fine dust floats gently above the opening, neither falling nor dispersing. But suddenly, another storm came out, stirring up several obvious holes in the layer of fine dust. The dust in the middle was passed through by the Gangfeng, and I don't know where it disappeared.

Ling Bing's heart suddenly moved, and a vague thought flashed through his mind.

These winds do not always exist, they erupt according to a certain law and a certain frequency. If she found out the frequency of the Gangfeng outbreak, avoided the Gangfeng outbreak, and entered in the gap between the Gangfeng outbreaks, did that mean that she could avoid the damage of the Gangfeng and enter inside?

As soon as he thought of this, Ling Bing's eyes lit up. Now all she has to do is to experiment and find out the pattern of the outbreak.

With a wave of his hand, he once again rolled up a huge stone with his spiritual power and threw it towards the entrance of the cave.

This time, the stone was thrown over, and instead of being turned into dust by the wind like last time, it fell straight into the hole.

Ling Bing listened attentively, carefully feeling the progress of the falling stones.

She didn't dare to release her senses. Gangfeng can break through the space and bring out small spatial cracks, and naturally it can easily screw off the divine sense. If she had the audacity to release her Divine Sense, only to be unlucky enough to run into Gang Storm Hair, her Divine Sense would definitely be cut off.

But the monk's five senses are powerful, and even without the use of divine sense, his hearing is terrifyingly sensitive. The boulder was thrown into the hole, but Ling Bing didn't hear the sound of landing. Come to think of it, either this boulder was twisted into powder by Gangfeng halfway, or the depth of this big hole was abnormal, and it had long exceeded the limit that Ling Bing's hearing could reach.

Ling Bing thought for a while, then once again rolled up ten slightly smaller stones with his spiritual power and threw them towards the entrance of the cave. This time, Ling Bing did not throw the stones down, but controlled them with spiritual power, allowing the stones to spread out evenly and levitate at the entrance of the cave. At the same time, she began to silently keep track of the time.

After about five minutes of floating at the entrance of the cave, three of the stones suddenly burst open and turned into dust, while the other seven remained unharmed.

Ling Bing's heart was overjoyed, and he immediately added three more stones to the original exploded position.

Again, five minutes later, the newly replaced stone burst silently again.

Sure enough, the appearance of Gangfeng was regular, and it basically kept breaking out every five minutes.

Ling Bing suppressed the joy in his heart and threw over the three stones again. There is indeed a pattern in the appearance of Gangfeng, so she must strictly test whether this pattern is really unchanged. So, she needs to do a few more experiments before she can come to a final conclusion.

Ling Bing once again rolled over a pile of stones with his spiritual power, placed them beside him, and began to patiently test them over and over again.

After ten times, Ling Bing had basically determined that the eruption pattern of Gangfeng was to erupt every five minutes, and the location of each eruption was basically constant. As long as you have to grasp the time and choose a good position, you may not be able to go down to the hole.

Ling Bing let out a long breath, now that she knew the law of the Gangfeng eruption, then she could prepare to go down the cave.

Seeing that there were still a lot of stones around him, suddenly, the ghost made a miracle, and Ling Bing once again threw three stones to the entrance of the cave.

However, just as Ling Bing was waiting for the stones in the same position to explode again, suddenly, all the stones turned into powder at the same time.

The smile on the corner of Ling Bing's mouth suddenly condensed.