The light under the rolling waves is very dim, and there is a turbulence of seawater that is enough to tear and crush any ordinary creature, Rao is has already tempered the ** to the point that it is not weaker than the beast sect Long Chen also felt a little difficult when he dived to the bottom of the sea, and if he didn't pay attention to it, he would be thrown out by the turbulence for more than ten meters, making him disoriented.

If it weren't for Bai Su to guide the route, Long Chen believed that it would be almost impossible for him to dive into the deep sea at the bottom of the island in just a few minutes under such a situation where he had to restrain his aura as much as possible, let alone find the traces of Lei Ling Cao.

After all, in such a harsh and complex environment, the sense of sight and hearing had almost lost their effectiveness, and the mystic aura he possessed could only diffuse and detect things within ten meters of his body.

When diving all the way down the reef at the bottom of the island, the pressure around him gradually multiplied, in order to avoid attracting the attention of the giant sea species in the sea, Long Chen could only rely on brute force to crawl forward close to the reef, and fortunately, he was still wearing the Red Refining Black Dragon Armor, which offset most of the external pressure and turbulent impact, otherwise, it would be difficult for him to hold on to this state for too long.

After about six or seven minutes, Long Chen finally reached the end of the reef at the bottom of the island, and entered a slightly flat area.

This is already the deep sea nearly 500 meters below the bottom of the island, the surroundings are pitch black, you can't see your fingers, in addition to the faint sound of the buzzing of the sea, there is also a very deep and strange wheezing sound that seems to come from the bottomless abyss, as if not far away, a giant buried in the mud and sand is sleeping.

After Long Chen, who had been holding his breath, stabilized his footing, Bai Su also flew out of his sleeve and expanded his body to the limit state.

After seeing Bai Su finish observing and closing his blue pupils, Long Chen immediately relaxed his vigilance and directly entered the hallucination imposed by Bai Su.

After a brief period of vertigo, the illusion cast by Bai Su immediately took effect, and everything around him became extremely clear in his eyes, as if sunlight had penetrated the raging ocean currents in an instant, illuminating the dark seabed.

"How's it going? Did you find the Thunder Spirit Grass?"

While inquiring about Bai Su, Long Chen also quickly searched for the areas he could observe.

Although everything that appears at this time is an illusion imposed by Bai Su, in this illusion, he can still choose where he wants to go, or what to observe, according to his own wishes, of course, the premise is that he cannot go beyond the limit of Bai Su's pupil power, because the things that can be seen at present are also derived from the things that Bai Su has seen before.

"I can't remember what Lei Ling Grass looks like......

Bai Su quickly spoke, his tone was a little apologetic, Long Chen was only stunned for a moment when he heard it, and then said: "It's nothing if you don't remember, let's just look carefully, besides, since the Thunder Spirit Grass is so precious, its appearance must be different from ordinary plants, it shouldn't be difficult to find." ”

Having said that, Long Chen's heart suddenly felt a little bottomless.

If the Thunder Spirit Grass is really different from other plants, it would be fine, but if this thing is not outstanding in appearance, or if it is buried by the sediment at the bottom of the sea, then this time it may be useless.

However, even if he couldn't find it in the end, Long Chen didn't regret this adventure.

After all, since the acquaintance with Bai Su, he has received too much help from Bai Su, and what really repays Bai Su is only a few sect hearts so far, and those are not specifically for Bai Su, but are obtained by being forced to fight with opponents.

Every time he thought of this, Long Chen felt guilty in his heart, so now this kind of behavior, which was completely impulsive in Qin Geyan's eyes, seemed to him to be a necessity.

After searching for a while in the illusion territory of Bai Sushi, the final result did not surprise Long Chen, within the two miles of the seabed nearby, not to mention the seabed plants with outstanding appearance, not even the slightly brighter and more gorgeous corals, let alone the thunder spirit grass that was among the seven great spirit grasses.

After searching to no avail, Long Chen said with some disappointment, and the illusion inflicted by Bai Su also dissipated, and his vision returned to darkness.

"Gollum"

At this time, there was a strange muffled hum from afar, mixed with a faint sound of sand and stone stirring, as if some foreign object was about to wake up from its slumber in the distance at this time, and the surrounding seawater, which was originally under great pressure but tended to be calm, was also accompanied by a slight shock.

Feeling this change, Long Chen hurriedly set off along the reef to the other end and quickly left, although he relied on the Star Dou Cloak to completely hide his breath, but, being in the sea is not as good as the outside world, some giant sea species on the bottom of the sea can not only rely on their unique breath to sense the surroundings like a mystery, they can also distinguish whether there is prey in the field through the weak sound waves fed back after shaking the seawater, so he must leave this place as soon as possible.

However, for such an obvious change, Bai Su didn't seem to notice it at all, and didn't remind Long Chen.

"Strange, could it be that Bai Su can't sense it?"

Long Chen stopped advancing, very confused, and secretly said in his heart, after making sure that he didn't feel wrong, he immediately stretched out his hand and gestured, signaling Bai Su to cast an illusion on him.

Although she didn't know why Long Chen was like this, Bai Su immediately fictionalized everything she could see in Long Chen's hallucination.

When he saw everything in front of him clearly, Long Chen couldn't help but be stunned.

On the slope of the trench that extends downward, there are a large number of dragon skeletons, which are scattered and piled up layer by layer, which is extremely spectacular, just like the cemetery of the dragon after the death of the whole Panjiao Bay.

Obviously, the strange aura that caught his attention came from the area where the bones were piled up, and after coming back to his senses, Long Chen immediately asked, "Can't you see the dragon bones in front of you?"

As soon as he said that, Long Chen suddenly realized that his problem was really a bit stupid, if Bai Su couldn't see it, it would be impossible for him to witness the scene in front of him.

Sure enough, Bai Su immediately replied, "Is there anything special there?"

After getting Bai Su's answer, Long Chen also affirmed that only he felt that breath, otherwise, Bai Su would definitely remind him, and if it was so abnormal, it also proved that there were some special things hidden in the realm where the dragon bones were piled up.

Moreover, these things are probably only perceptible to the mysterious.

"Let's go over and see. ”

In order to save time as much as possible, Long Chen did not explain the reason, but after saying hello, he immediately broke away from the illusion imposed by Bai Su, and then kicked the reef with both feet, and after the whole person flew out, he quickly swam towards the place of the dragon's bones.

The closer he got to his destination, the more intense the strange aura became, which made Long Chen even more curious.

However, when he actually entered the realm where the bones were piled up, the aura suddenly disappeared......

"Huh, what's going on?"

Long Chen frowned, and immediately reached out to grab a piece of Jiaolong's backbone and stopped, closing his eyes and trying his best to sense carefully, but no matter what, he could no longer find the existence of the breath just now.

Bai Su, who followed closely, lightly touched Long Chen's arm and cast a puzzled look, because she really didn't know why Long Chen suddenly became interested in this area where the dragon bones were piled up.

Since Bai Su couldn't sense the special change just now, after Long Chen opened his eyes, he didn't ask Bai Su to cast another illusion, but hesitated for a moment, and then prepared to take off the Star Dou cloak, intending to use his own mystical aura to investigate the "real" situation around him.

Waving his hand and making a gesture, signaling that Bai Su was ready to return to the Beast Nine-Eyed Bracelet at any time, Long Chen stabilized his body and stretched out his hand to the Star Dou Cloak.

At this moment, above a dark sea water, Huo Ran flashed a little cyan light, like a falling meteor, dragging a long cyan trajectory, and in the blink of an eye, it fell into the place where the dragon bones were piled up about thirty meters away in front of Long Chen.

After seeing this scene, Long Chen's action of stretching out for the Star Dou cloak also stopped suddenly, and his eyes were full of surprise.

The blue light just now was obviously a thunderbolt

The problem is that this is a 500-metre-deep seabed, and even if a lightning strike strikes above the surface, it is obviously unlikely that it will spread to such a deep place.

In particular, when this thunderbolt penetrated through the seawater, there was no sign of attenuation, and it felt as if something was attracting the thunder and lightning on the sea surface in the pile of dragon bones in front of it

Thinking of this, a thought immediately flashed in Long Chen's mind, could it be that the thunder and lightning that pierced through the sea water just now had some connection with the special aura he felt before?

"Thunder Spirit Grass...... Jiaolong skeleton ......"

Long Chenxun sorted out the information he had learned, and finally raised his head suddenly, with a flash of sudden realization in his eyes.

"Since the Thunder Spirit Grass has the magical effect of transforming the dragon and the evolution of the seventh-order fierce creature into the eighth-order demon spirit, then this thing must contain a huge amount of energy, and this energy is definitely not stored only by absorbing the nutrients in the sediment on the seabed, but must absorb the power of thunder and lightning, the most destructive energy in nature."

"Moreover, there has never been a dragon clan in Panjiao Bay, so it can be seen that this kind of transformation and evolution is not an easy task for Jiaolong, on the contrary, it is very difficult and dangerous, and it is very likely to lead to death, and the large number of Jiaolong bones that appear here is probably not the graveyard of Jiaolong after his normal death, but the place where countless Jiaolong failed to transform into a dragon clan."

Thinking of this, Long Chen's heart suddenly became excited, and after waving his hand to signal Bai Su to follow, he immediately swam towards the place where the thunder and lightning disappeared just now.

At this time, as if attracted by the thunder and lightning that fell into the sea just now, with Luolei Island as the center, the dragons within a range of nearly fifty miles were all like crucians crossing the river, winding with thick scales and long bodies, churning giants* towards Luolei Island.