The thundercloud sky is always lightning and thundering, and it is raining all the time, less than heavy rain or torrential rain, in short, the sky is always raining.

Shen Qiuba, the adventurous warrior, led them all the way south, through the mist through the woods, through the vast lake, and finally to a mountain range.

The mountain range stretched endlessly, and I didn't know where it started and where it ended, but they entered from the middle of the mountain range, and finally the two of them landed at the foot of a mountain peak more than 3,000 meters high.

Shen Qiuba pointed to a less obvious place on the belly of the mountain where he had dug a large hole.

"That's where I found the sword. ”

Chen Ling nodded, took a deep breath, and flew towards the belly of the mountain.

A large hole had been dug in the belly of the mountain, just enough for a person to walk into.

But the situation inside the cave is completely different from the situation outside, the inside is actually a natural karst cave, the scale of this karst cave is not large, the left and right are only about ten meters, it looks more like a hollow in the belly of a mountain.

Generally, there is not much in the belly of the mountain that there is a separate karst cave that cannot be connected with the outside world, and when he saw this karst cave, Chen Ling showed doubts.

As soon as he stretched out his hand, a flame appeared in front of Chen Ling, one into two, two and four, and four flames scattered around, illuminating the small cave.

Chen Ling carefully observed the cave.

Normal karst caves are all washed by water currents, so normal karst caves are figured out, but this karst cave has no other access except for a hole dug by Shen Qiuba, which shows that this is a natural but abnormal karst cave.

Chen Ling watched carefully, and soon discovered the place where Shen Qiuba excavated the Heavenly Xuan Sword.

This guy is a martial artist after all, and the excavation adopts the routines of a martial artist. The whole excavation was carried out using the aura...... There was another very complete pit on the ground, and the whole rock on the ground was taken out by him, and there was only one excavation trace in the entire cave, indicating that although the three swords were separated, they were inserted into this place.

Looking at this cave again, Chen Ling basically knew that this big cave was mainly eroded by the sword qi of the Tianxuan Sword, which showed that the Tianxuan Sword had been here for quite a long time.

But how long Chen Ling is, Chen Ling can't judge just from the size of the cave.

He squatted on the ground and carefully looked at the place where Shen Qiuba dug out the sword, and the pit had an inclined plane. It shows that the Heavenly Xuan Sword is inserted diagonally into the belly of the mountain from above.

Chen Ling stood up, concentrated the four fires on the top of his head, and looked up at the angle, but he didn't see a hole left by the Tianxuan Sword penetrating the mountain peak, this hole was too small, I am afraid it would have been squeezed and disappeared by the terrain movement.

Chen Ling flew to the top of the cave and touched the smooth rock wall eroded by the sword qi with his hand, he wanted to use the aura to sense the traces of this penetration, trying to judge how long this trace had been on this mountain.

The Tianxuan Sword was slowly released outward, and there must have been some subtle remnants of sword qi left in the process of penetrating the mountain. As long as he could feel the remnants of this sword qi, he could judge how long the residual sword qi had existed with his ability.

Keep your hands on the rock wall above your head. Unleash aura and slowly seep into the rock wall.

This mountain is more than 3,000 meters high, and this karst cave is almost between 1,800 meters and 2,000 meters away from the top of the mountain, in order to fully feel all the details in the 2,000-meter mountain, Chen Ling used his aura to soak the 2,000-meter mountain completely, and every detail in the mountain appeared in his mind.

Tree roots, soil, rocks of different structures, ores of different structures in the rocks, different metals around the ores, every detail was captured by Chen Ling completely.

I felt it.

There was an external energy left one and a half meters away from his twin mountains, and this energy was very weak, so faint that it was almost imperceptible, but because it was surrounded by aura, it did not belong to aura, and no matter how subtle it was, it was useless.

In order to make sure that this energy was not inferior to the energy emitted by certain ores, Chen Ling followed this meaning energy and probed the surrounding situation.

Sure enough, this poured energy extended upwards at an oblique angle, which just coincided with the angle at which the Tianxuan Sword was inserted into the ground, and there was no doubt that this was the sword qi left by the Tianxuan Sword in the process of penetrating the mountain.

Chen Ling continued to investigate upwards along the diagonal line, and suddenly felt that there was a strange thing in this trajectory, and this thing exuded a trace of energy that she was very familiar with.

Chen Ling felt the pattern of this object in his brain—a pendant shaped like a crescent moon.

Yating often wears a pendant around her neck.

Chen Ling's expression changed, and her excited aura was messed up, this pendant was given to her by her deceased mother, she would wear her around her neck every time, and she would take it out when she missed her mother, as long as she entered the aura towards the pendant, she could see her mother's face.

If Yating can discard the Tianxuan Sword, it is absolutely impossible for her to discard this meaningful pendant.

Chen Ling was so excited that he almost wanted to split the mountain and take out the pendant immediately, but he held back.

The main purpose of his visit this time was to judge the approximate time when the Tianxuan Sword would fall into the Thundercloud Realm, and he must not let this windfall ruin his original plan.

He took a deep breath and calmed down, his consciousness continuing upwards through the pendant, until he found the point of entry of the Tianxuan Sword.

The Tianxuan Sword was probably shot into the mountain from a height of five hundred meters away from the peak, and it was shot into the mountain through the mountain body of more than a thousand meters, the closer to the point of the shot, the less sword qi remained, and the closer to the position where the Tianxuan Sword finally stayed, the more interference the sword qi received, Chen Ling finally chose the middle point as the object of observation, due to the natural protection of the mountain, the sword qi in this section was the most complete, neither a large number of escapes, nor was it affected by the sword qi from the Tianxuan Sword itself.

According to the escape speed of the sword qi, it took Chen Ling a whole week to restore the initial strength of this sword qi in his mind, and how long it had taken to weaken this slight residue to the present.

7,500 to 8,000 years, with an error of 500 years.

Chen Ling could be very sure of his judgment, although this error of five hundred years seemed a bit terrifying, but compared to eight thousand years, these five hundred years did not seem to be much.

Sure enough, it was what happened during that time.

Chen Ling's face was quite unsightly.

The Tianxuan Sword fell to the Thundercloud Realm seven or eight thousand years ago, if this doesn't explain the problem, then her pendant also fell here, which is one thousand percent sure that something must have happened to the Nine Realms Mountain.

If it's just that something happened to Nine Realms Mountain, then it's okay, the problem is that all this shows that Yating also had an accident, which makes Chen Ling unacceptable. (To be continued.) )