Polar day, also known as eternal day.

The "Ice Dome A" of the Antarctic inland ice sheet during the polar daylight.

At 1 a.m. at night, the sky is still not dark, and the midnight sun hangs high in the sky, and the strong sunlight shines on the vast white ice field, directly on the magnificent Tropic of Capricorn.

Due to the thin air and harsh environment in the Antarctic interior, the scientific expedition team returned to Kunlun Station to rest after working for 3 hours, because long-term operations in thin and cold places will be extremely easy to get tired and lack oxygen.

So early in the morning.

When the members of the scientific expedition team at the entire Kunlun station fell asleep.

Gong Siyu, Ji Younai, Liuyun, Ji Ruchen, Angelica, Feng Jinxuan and A Luo, as well as Gong Youen, a bird and a wolf, and Bai Wuwu quietly left Kunlun Station with his 14 subordinates of the Heavenly Dao Alliance.

They were ready to go, dressed in polar gear of different colors, carrying all the waterproof supplies and equipment on their backs, and walked towards the vast ice field where the frozen lake is located.

The cold wind howled and the extremely cold weather did not stop them from moving forward, and on the vast Antarctic inland ice field, their group looked like orderly marching ants, looking small and insignificant.

Before the Kunlun scientific expedition team finished work, the 3,262-meter ice covered by the frozen lake had been completely broken down by quantum laser drilling equipment.

In other words, Gong Siyu and they can rely on the 1.5-meter-diameter drilling entrance on the ice surface to go deep into the prehistoric frozen lake under the 3,262-meter ice layer to find the entrance to the "Tibetan Sea Heart".

A group of 23 of them gathered around the ice entrance of the frozen lake and took off their goggles.

"It's all here, you can lift the seal of spiritual power, right? Otherwise, how can it go down? 3,000 meters of ice, the prehistoric frozen lake sealed in the depths of the glacier, none of us know the situation below, maybe there are prehistoric underwater creatures waiting for us, even if the people of the General Administration of the Three Realms perceive us here, what can they do? They can't catch up with us. ”

Preparing to dive, Ji Ruchen proposed.

"I think so." Liuyun bowed his head and looked indifferent, expressing his approval.

Hearing this, Gong Siyu was expressionless, and he gave a cold order to Bai Wuwu and his party: "Unseal it." ”

Next second!

Except for Ji Younai and Gong Siyu and Gong Youen.

Everyone else, holding the lotus law seal in their hands, broke through several big points on their bodies, almost at the same time! From the Heavenly Spirit Cover of Liuyun, Ji Ruchen, the 15 members of the Heavenly Dao Alliance, Feng Jinxuan, A Luo and Angelica, the sealed aura burst out.

The 15 members of the Heavenly Dao Alliance, Ji Ruchen, Liuyun and Feng Jinxuan were all masters of the Heavenly Realm, and their aura soared to the sky, forming a spectacular and gorgeous aura pillar.

Ah Luo and Angelica are slightly weaker, but they have also formed a powerful aura cloud.

After they lifted the seal of their spiritual power, they cast a spell in an instant, forming a transparent foam-like protective shield around their bodies, which could protect them from breathing freely after entering the frozen lake, and the mask could also emit a faint white fluorescent light.

Snow wolf Aru and Luan Niao Yunxiao were held and protected by Feng Jinxuan and Angelica.

As the god of death in the West Hades, Gong Youen must have great powers and has his own way to breathe underwater.

But the most unlucky ones are Gong Siyu and Ji Yuno.

Ji Younai has no memory and doesn't know how to use spiritual power at all, but fortunately, Liuyun and Ji Ruchen protected her and protected her with spiritual power.

Gong Siyu couldn't bear the strength of his spiritual power because his physical body couldn't bear it, and he couldn't use any spiritual power until he returned to his true body.

Because of his special ability, immunity and defense against all spiritual power, Bai Wuwu can't add a protective light shield formed by spiritual power to him.

At this moment, Gong Siyu is like an orphan, he can't use spiritual power, and others can't use spiritual power on him, which is very embarrassing.

"Brother, what are you going to do?"

Ji Ruchen gloated and patted Gong Siyu on the shoulder and asked with a smile.

"Be prepared." Gong Siyu had an indifferent face, and immediately took out a bundle of green aquatic plants wrapped in a waterproof bag in advance, took out a handful, chewed and swallowed, "Fish gill grass, you can breathe underwater for an hour at will after taking it, and this grass is cold-resistant, for convenience, I asked Bai Wuwu to prepare a big bag." ”

"Even so, you can't jump from such a deep ice well and fall freely into a frozen lake, it's like jumping off a cliff, and it's strange if you don't fall without bones."

Who knows, Gong Siyu is still prepared, and he has already thought of countermeasures.

"Rappelling, a small parachute used to reduce the pressure of the dive and make a vertical descent in a confined space, as long as I open it in the ice section of 2,000 meters, I can reduce the dive pressure and not die." After a pause, Gong Siyu looked at Ji Younai, who was protected, and looked at Liuyun, "You take care of your heart and liver, she has no memory, she doesn't understand anything, we don't know the situation of the frozen lake, don't get lost." ”

"Don't worry." Holding Ji Yunai's shoulder, who was attached to the corpse's body, Liuyun nodded solemnly.

"What are you waiting for? Let's go! See you at the frozen lake! ”

Ji Ruchen seemed to be impatient, did a few stretching exercises, dragged the angelica behind him, and jumped towards the circular hole of the 1.5-meter diameter ice surface, jumped in, and disappeared in front of everyone's eyes in an instant, only Ji Ruchen's arrogant laughter echoed in the depths of the ice cave.

Next, everyone jumped in one by one.

Until the end, only Liuyun, Ji Younai and Gong Siyu remained.

Because Miyajiyu was going to use a parachute, he had to be the last to go.

"Don't be nervous, don't be afraid, just listen to the flowing clouds, get below, wait for me to meet together."

Gong Siyu dotingly looked at Ji Yunai, who was wearing a pink snow suit, and said very gently and slightly.

"I'm not nervous, I'm afraid I can't talk about it, I'm just a little excited, have we all been so adventurous before? It's a pity that I don't know how to use spiritual power, and I feel like I'm holding everyone back. ”

Hearing this, Gong Siyu hooked his lips and smiled lightly, "When the real you come back, I have to call you your ancestor." ”

Liuyun immediately picked up Ji Yuno horizontally, and disappeared above the ice cave in front of Gong Siyu.

It didn't take long for Gong Siyu to jump down.

It's like traveling through a secluded and mysterious time and space tunnel.

Enter a prehistoric area that has been sealed in the dust for a long time.

Frozen for 10,000 years, eternal cold, eternal darkness, and a frozen lake below 3,262 meters, it is like a prehistoric water world that has been isolated from the world for a long, long time......

With the sound of entering the water one after another.

In the completely dark frozen lake, a few faint white fluorescent lights gradually emerged, temporarily illuminating a limited small area.

Above the head is a thick layer of permanent glaciers, which is mysteriously cold and gloomy in the light of a pale white fluorescent light.

No one knows how deep the frozen lake is, because the darkness around it is as far as the eye can see.

But there is one thing, Ji Ruchen and the others who successfully entered the frozen lake can be sure - under the eternal extreme cold, there will not be any giant creatures here, but it is very likely that there will be very small cell organisms.