The underground world is dark, lightless, cold and damp.
Two figures flashed through the darkness, and finally landed on two huge raised rocks. Luminous stones were thrown from their hands, illuminating the surroundings.
"It seems that this place is the source of the underground river."
The light floated, reflecting the faces of the two people.
Astonishingly, it was Lin Bai and Tuoba Xin, the holy son of the Barbarian Sect, who were searching for the source of the underground river.
In front of them, there was a huge piece of water, like a huge underground sea. Both of them were using magic eye skills, but neither of them could see the boundary of this huge piece of water.
There is no light source in the underground world, and there is darkness all around. The waves on the underground sea are floating, and the sound of water is sounding, which echoes in the darkness but looks particularly eerie.
It's so quiet here, it's so quiet that it makes your whole body go crazy.
"Sure enough, this place contains extremely refined spiritual energy and earth energy!" Tuoba Xin squatted down slightly and touched the ground with his palms, as if he could feel the pulse of the earth.
Lin Bai watched his every move curiously, "With all due respect, I found that it seems that as long as you put your feet on the ground, you have been absorbing the aura and veins of this earth?"
Lin Bai used his Shura Dharma Eye to see the skills running in Tuoba Xin's body. As soon as his feet landed on the ground, a force poured in from the soles of his feet and penetrated the eight extraordinary meridians.
This gave Lin Bai a very strange feeling, as if Tuoba Xin only needed to touch the ground and they could start practicing endlessly.
Tuoba Xin smiled slightly and said without explanation, "Everyone has their own secrets, right?"
"For example... Mr. Lang Hou didn't expose all his secrets to everyone, right?"
Tuoba Xin mentioned Lin Bai's secret, as if to warn Lin Bai not to ask any more questions.
Lin Bai was also very sensible and did not continue to ask. Instead, he looked at the huge underground sea in front of him, "This place should be the source of the underground river. The nine-headed dragon and snake you mentioned should be here."
"Then what do we do next?"
"Did you set a trap and then lure them out?"
Lin Bai asked Tuoba Xin about his next plan.
Tuoba Xin smiled slightly, "Deploying traps has never been my strong point; I believe that as a sword cultivator, Brother Lin would not bother to use such clumsy hunting methods."
Lin Bai smiled, "Then what kind of methods is Brother Tuoba used to?"
Tuoba Xin clenched his fists and said, "I prefer direct confrontation."
Lin Bai smiled, and the demon sword appeared in his hand, "What a coincidence, so do I."
One person held a fist, the other held a sword, and looked at the underground sea in front of them.
"If that evil beast is here, we only need to paddle across the water, and he will come out naturally!" Tuoba Xin said: "We regard him as prey, why doesn't he regard us as prey too?"
Lin Bai then said: "I turn to the left, you turn to the right, don't be too far apart, stay within 10,000 meters, I can reach you at any time!"
Tuoba Xin nodded and said: "Okay."
The two of them formulated a battle plan in a few words. Immediately, the two of them jumped up from the boulder, one going to the left and the other to the right.
Lin Bai held the demon sword in his hand, leaning against the water, and moved forward slowly. At the same time, he also paid attention to Tuoba Xin's actions. He kept a distance of ten thousand meters from Lin Bai, and also stayed close to the water, moving forward cautiously.
.
The water surface of the underground sea at the source of the underground river is exceptionally calm. Occasionally, there are rolling waves, which makes the sound of water sound everywhere, striking everyone's heart in this quiet and terrifying space.
Crash... As Lin Bai was walking forward, a splash of water suddenly swayed. Lin Bai immediately looked over and saw a splash rising from the water not far to the left.
Lin Bai looked carefully and found that there was an unknown black fish in the water. After discovering Lin Bai, he ran towards the bottom of the water in panic.
"Try not to go underwater." At this time, Tuoba Xin's voice transmission reached Lin Bai's ears. After he finished speaking, he added, "It's very dangerous!"
nonsense.
Did I not know it was dangerous?
Lin Bai agreed with a smile. After entering the underground river, Lin Bai kept walking on the surface of the water and never considered venturing into the water.
Because Lin Bai had investigated, whether it was an underground river or the source of this place, the distance from the water surface to the bottom, no matter how short it was, was still a hundred feet deep.
Moreover, it is dark and lightless under the water. Even if Lin Bai has the magic eye, he cannot easily see through the darkness. Who knows what weird and strange species are hidden in the darkness under the water?
Thousands of miles apart, Lin Bai and Tuoba Xin pushed forward slowly, but encountered no danger along the way, let alone nine-headed dragons and snakes.
Then Lin Bai discovered many unknown spiritual fish in the water, including black ones, dragon ball spiritual fish, and other fish... There were many kinds, but none of them were too aggressive.
"This underground sea is really huge. I wonder if we have reached the halfway point." Lin Bai sent a message to Tuoba Xin, analyzing the current situation.
"My magical eye pupil technique cannot see the boundary. Brother Tuoba, can your magical eye pupil technique see the boundary?" Lin Bai asked curiously.
Tuoba Xin replied via voice transmission: "Brother Lin's Shura Dharma Eyes can't even see the boundary, let alone the Dharma Eye Eye Technique that I practice."
Lin Bai was slightly stunned. Tuoba Xin actually saw that Lin Bai was practicing the Asura Dharma Eye?
"But..." Tuoba Xin continued: "Although my Dharma Eye Technique cannot see the boundary, I can feel the boundary using other methods."
"At our current speed, we can fly through this underground sea in another seventy-two hours."
Tuoba Xin did not explain clearly what method he used to measure the size of this underground sea, but he gave Lin Bai an approximate time.
Through this time and the speed at which they were traveling, Lin Bai could easily calculate the width of this underground sea.
"How deep is it?" Lin Bai looked under the water.
Tuoba Xin was stunned for a moment, and then glanced under the water, "The bottom is bottomless. That's why I came in advance, Brother Lin, don't risk going into the water."
Tuoba Xin didn't say it clearly, but Lin Bai was a little suspicious.
Since Tuoba Xin can measure the width of this underground sea, he naturally has a way to measure the depth of the underground sea.
But he did not tell Lin Bai explicitly. There was only one possibility, that is, he did not want to tell Lin Bai.
Just when Lin Bai was deep in thought, Tuoba Xin suddenly heard a message, and his voice became extremely urgent, "Brother Lin, be careful, something is coming up from the bottom of the water!"
"Heading towards you!"
The meaning of his words was brief and frightening. In a few words, he told Lin Bai that something had risen from the bottom of the water and was heading towards Lin Bai.
Lin Bai immediately cheered up. He also felt a danger coming from under the water, and it rushed towards him at an extremely fast speed!
Lin Bai immediately stopped on the water. Four flying swords immediately rushed out of his body and surrounded him. The demon sword in his hand was filled with strong killing intent.
After Tuoba Xin sensed the danger, he quickly approached Lin Bai.
Just in this moment!
There was a loud rumble, and the water surface exploded. Along with a sharp and ear-piercing howl, a huge creature rushed out from under the water and appeared in front of Lin Bai.
"Roar!" The deafening roar made Lin Bai's eardrums sting.