After listening carefully for a while, Lin Yu discovered that the sound was very similar to the sound of a human heartbeat.
"If it's really the sound of a heartbeat, how big does a heart have to be to make such a loud sound?"
The sound passed through the thick soil and was still very clear here, which shows how loud it is.
What's more, after listening carefully, Lin Yu discovered that the origin of the sound was very far away from here.
"Listen again."
Lin Yu continued to listen attentively.
After listening for about ten more minutes, he was 100% sure that this was the sound of the heart beating.
After coming to this conclusion, he was very curious. Could there be some giant creature hidden under the ground?
Thinking of this, he suddenly remembered what Utula told him at that time.
Utura said that every six times the light and dark alternate, you must go to the palace and you must not forget it, otherwise the consequences will be unimaginable.
Now combined with the heartbeat, Lin Yu guessed whether this request was related to some kind of giant creature hidden underground.
"It seems that it is necessary to clarify the situation."
Nodding secretly, Lin Yu began to think about how to conduct an in-depth investigation.
Now there are two options. The first option is to continue walking forward and follow the sound to the place where the sound originated to see for yourself.
The second option is to release the soul and use the soul to sense the situation over there.
Lin Yu's mind raced and he thought carefully.
After a while, he finally made up his mind.
“It’s safer to go and take a look in person.’
He thought to himself.
If you go there in person, you can use the powerful Yuanling Divine Body to escape if you encounter danger.
And if you use your soul to sense it, you will be in big trouble once the other party discovers it.
After all, I now have an extremely powerful body, but my soul is very fragile.
Only if your soul is hidden within the body's sea of consciousness can it be safe enough.
Thinking of this, Lin Yu moved forward again, heading towards the source of the sound little by little.
The material in this abyss is obviously different from the material in other material planes, and is much stronger.
Even if Lin Yu has a second-level Yuanling divine body, it will be very difficult to crawl underground.
If it were people like Sidi, it would be difficult to just dig a hole in the ground, let alone dig into the ground to explore.
That's why Lin Yu did this himself.
呲呲呲——
Lin Yu kept peeling away the surrounding soil of unknown composition, making a series of slight sounds.
Ahead, the rumble was getting louder and louder, and it was still very rhythmic.
"Come on, if you go a little further, you should be able to see the true face of Mount Lu."
Thinking of this, his men moved a little faster.
Boom, boom, the sound is getting closer and louder.
Lin Yu felt like thunder.
This made him feel a little strange. What kind of giant creature could make such a loud heartbeat?
And just as he was thinking this, a ray of light suddenly shot in from the crack in the soil he had opened.
Lin Yu saw this and hurriedly pulled it from left to right to make the hole bigger.
Finally, he finally saw clearly what was making the sound.
Unexpectedly, it turned out to be an extremely huge heart.
This heart is far larger than the palace of the Great Lord on the ground, hanging in the huge hollow and beating non-stop.
Lin Yu couldn't take the entire heart into his eyes at a glance, he could only see part of it.
You need to look left and right to see that this is a heart.
"I thought it was some kind of giant creature, but I didn't expect it to be an exposed heart?"
Lin Yu was shocked.
He never expected that he would see such a big naked heart.
This made him curious about the origin of this big hole.
Could it be that this big hole is inside the body of some kind of giant creature?
"This abyss is indeed not simple, it is more mysterious than I imagined."
Lin Yu nodded secretly in his heart, thinking that before he could figure out the entire pattern of the abyss, he still had to be careful to avoid unnecessary trouble.
Then he continued to pull at the dirt until the hole was big enough for him to pass through, and then he finally stopped.
Lin Yu carefully drilled out of the hole and came to the cave where the giant heart was.
"This place doesn't look like it was excavated artificially, it looks like it was formed naturally."
Lin Yu looked far into the distance and quickly observed the situation in the entire cave.
Then, he flew upward along the cave wall and reached the top of the giant heart.
Here, he saw an extremely thick thing that looked like a blood vessel.
This blood vessel is connected to the heart, suspending the heart in the center of the cave.
"If I guess correctly, this pipe should be connected to the palace of the great master."
Lin Yu recalled his trip here.
Based on the distance from the starting point to here, he roughly calculated that the heart was located directly below the palace.
Lin Yu touched his chin and slowly circled along this extremely thick blood vessel.
He wanted to take a closer look at the entire blood vessel to see if he could get any useful clues.
Boom——
Boom——
The beating of his heart was like thunder, causing Lin Yu's body to tremble slightly.
And amidst the thunderous noise, a strange spider-like creature crawled down the blood vessel.
Lin Yu didn't hear the other party's crawling sound at all, nor did he notice the other party at all.
Because this strange creature deliberately avoided him and sneaked over.
"This tube seems to be transporting something inside. I just don't know whether it is transported from the heart to the top, or from the top to the heart."
Lin Yu stopped slowly, raised his head and looked directly above.
At this time, he had circled around the entire blood vessel, but didn't see anything strange.
So, he was wondering whether he should follow the blood vessels and take a look at them.
The reason why he didn't act in a hurry was because this was the palace of the Great Master, and the higher he went up, the easier it would be to alarm the other party.
If he accidentally disturbed the other party, he might not be able to eat and would have to walk around.
After all, with his current strength, he is still no match for the great master.
Although I don't know how many levels of divine body the Great Overlord possesses, judging from my experience, there must be more than two levels.
Moreover, Lin Yu didn't know what kind of methods the Great Master had in addition to his super powerful divine body.
After all, he had just arrived in the abyss not long ago, and he didn't know what kind of strength the God of Eternal Paradise had.
"Forget it, let's just stop here today and wait until we get more clues next time to come over and have a look."
Lin Yu withdrew his gaze and prepared to leave first.
Anyway, I don't have anywhere else to go now, and I will probably stay in the abyss for a long time, so I have plenty of time to investigate slowly, and there is no need to rush.
Swish——
Lin Yu moved and flew towards the tunnel he had just dug.
But at this moment, an agile figure suddenly rushed towards him.