If the hole is illusory, then how can there be a whirlpool?

And those white salamanders that suddenly disappeared, they can't be illusory.

Thinking of this, Ling Zikai turned around suddenly and walked back to the underground river quickly.

He did not go down into the river, but sat down in front of the mouth of the cave near the river, and shrouded himself in the underground river, and then waited quietly, he wanted to see for himself if there would be another whirlpool on the surface of the river.

In order to save the battery in the flashlight, Ling Zikai turned off the flashlight, and the surroundings fell into darkness.

Under this ground, Wan Lai was silent, deathly silent, Rao is Ling Zikai was bold, and after sitting for a while, his heart began to feel a little numb, and he couldn't help but murmur secretly:

Isn't that a whirlpool an illusion too?

If there is a whirlpool, it will probably be intermittent, but I don't know how often it will appear!

If it happens every hour, but what if it shows up every other day, or once a month?

Are you just waiting here stupidly?

The more Ling Zikai thought about it, the more he felt a little restless, and he wanted to leave, but he only comforted himself with a trace of luck:

Wait a little longer, maybe in a few minutes, and the whirlpool will appear.

Time passed slowly in Ling Zikai's constant gains and losses.

The surface of the river in consciousness is still unmoving.

Just when I was drowsy and my heart was full of despair, inadvertently, an imperceptible ripple suddenly appeared on the calm river.

Ling Zikai's heart shook violently, he stood up suddenly, hurriedly turned on the flashlight, shone it on the river, and stared intently at the water.

At first, the fluctuations were not obvious, but gradually began to form a whirlpool the size of a bowl, and as it rotated, the whirlpool continued to expand, even expanding to a circle of more than two meters.

A suction force appeared in the center, sucking the surrounding water into it, causing the entire underground river to sink a lot.

This vortex has really appeared!

An irrepressible excitement rushed into Ling Zikai's heart, giving him an urge to jump in.

Fortunately, reason reminded him not to act rashly, and he tried to pick up a fist-sized stone and throw it at the center of the whirlpool.

I saw that the stone fell into the dark hole along the whirlpool of rotation.

Hey, I'm in!

Ling Zikai was stunned for a moment, then took out a plastic bottle containing mineral water from his backpack and threw it into the whirlpool again.

After a few turns, the mineral water bottle also entered the dark hole.

Ling Zikai felt a little incredible, it seemed that this dark hole was real, but why did it only appear when the whirlpool appeared!

Ling Zikai didn't have time to think about the mystery, there were many mysterious phenomena in this world, and who could really crack the mystery.

Now he was thinking that since the stone and the mineral water bottle could follow the whirlpool into the dark hole, if he jumped into the whirlpool at this moment, he should be able to enter it too!

It's just that it's a bit reckless to jump in like this, who knows where the dark hole leads, and whether there will be unpredictable dangers?

Just as Ling Zikai hesitated, the whirlpool began to shrink and disappeared in the blink of an eye.

The river was calm again, and the dark hole under the water was gone, as if nothing had happened.

The time for this whirlpool to appear is too short, and I don't have time to think about it at all! It seems that even if I want to go in, I can only wait for the next opportunity.

After witnessing the existence of the dark hole, Ling Zikai was not in a hurry to enter.

He estimated that there had been about two hours between the last time the whirlpool appeared, so as long as he waited another two hours, the whirlpool would reappear, and he could use this time to prepare for entering the dark hole.

As the saying goes: wealth and danger are sought, no matter what unpredictable unknowns are in the dark hole, you should go in and have a look.

After two hours of waiting, the vortex reappeared.

This time, Ling Zikai didn't hesitate any longer, and when the whirlpool expanded to a radius of two meters, he jumped into the whirlpool without hesitation.

The moment he entered the whirlpool, Ling Zikai only felt an irresistible force pulling his body through an invisible barrier, and then his body entered a waterway and floated inward with the surge of the current.

Ling Zikai hurriedly held his breath and curled his body into a ball, so as not to be scratched by the stones on the cave wall.

At the same time, a trace of uneasiness rose in my heart, not knowing how long this waterway was. I can't hold my breath in the water for long, and after a long time, I am in danger of drowning alive.

After drifting for more than twenty meters, the waterway began to turn upward. Overhead, a body of water glowed with a blue glow.

Ling Zikai was overjoyed in his heart, and hurriedly stretched out his body, sliding his limbs and struggling to swim upstream.

When his head surfaced, Ling Zikai opened his mouth wide and let out a long mouthful of turbid breath that was stuffed in his body. Immediately afterward, an incomparably fresh breath rushed into his nose, as if injecting vitality into his limbs, which lifted his spirits.

After taking a breath of relief, Ling Zikai wiped a handful of water droplets from his face, looked around, and found himself in a puddle. Seeing that it was only more than ten meters away from the shore, Ling Zikai swam over with his limbs.

After climbing ashore, Ling Zikai ignored the wet clothes on his body and hurriedly checked the surrounding scene.

The first thing that catches your eye is a wide cavern, the size of a football field.

Above the top of the cave, which is more than 20 meters high, there is a one-meter-square cave, and a beam of light shines through the tunnel that is hundreds of meters old into the cave, bringing light to the cave hidden deep in the belly of the mountain.

In the center of the cave is the waterhole that I just climbed up, which is more than 100 square meters in size. The water of the pond is crystal clear, clusters of turquoise unknown aquatic plants slowly swaying their slender figures, and among the aquatic plants, there are some fish that have never been seen swimming leisurely.

There are also some plants growing on the shore around the waterhole, and although they are not exposed to the sun, they look alive.

There were also some plants growing on the surrounding cave walls, and what made Ling Zikai especially unbelievable was that at the foot of one wall there were a few emerald green palm leaves, weren't they the branches and leaves of ginseng?

Ling Zikai felt that his heartbeat was a little faster, and a mood full of pleasure appeared in his consciousness, this was because in this cave, he felt the vigorous breath of life that was full of the essence of heaven and earth.