"The water is exhausted and the cold pool is clear, and the smoke is condensed and the twilight is purple."

The endless dark scenery is under the cold pool that is not a few meters deep, the water waves and light and shadow are mixed, and the fish that dot the water light and shadow of the pool are placed at the tail of the natural biological light, and the blue light flashes and overlaps, and the cold water and low temperature appear in the water area leisurely.

Coral reefs, delicate sand, colorful shellfish, and the bottom of the cold pool in a mimetic marine environment are all beautiful.

In the forbidden area of the limit of human existence, there are schools of cold fish, and the inexplicable light source does not come from nowhere, and under the lonely water layer, only July dragged the body of the lilac tulle dress and swam rapidly in the water.

The fish curiously surrounded July's side, following her in the icy water, the long skirt dragged in the fish, the low temperature froze so that July's beautiful face turned pale, the thin and ruddy lips faded color, and the hairline floated behind the head with water lines.

Ningyun! In July, there was a hole in the bottom of the pond with a black mist rising from the bottom of the pool, and on the edge lay a motionless body, lying on its stomach beside the coral reef, dressed almost the same as the clouds.

"She understands water, and the temperature of the cold pool is too low." July swung his white arms and slid the water of the pool, forcing the huge buoyancy to desperately approach the bottom of the pool, the strange fish bodies were transparent, always surrounding the left and right, and the bold ones were attached to the jade body of July.

Finally, his fingers just reached the coral at the bottom of the pool, climbed to Ning Yun's side, and in a hurry, he choked on a mouthful of cold pool water, stabilized his body, and then turned over the person lying at the bottom of the cold pool.

At this time, Zhang Yishan emerged from the hole on one side, and the two of them could not communicate soundly under the water, so she gestured twice and asked July to dive with her into the space under the hole.

The strange school of fish reluctantly formed a whole encirclement, tightly blocking July and Ning Yun in one of the underwater spaces, leaving only speckled gaps.

It turns out that the hole where the black mist gushes into the water surface is an underground hot spring, but what comes out is actually a constant temperature of the spring water mixed with various minerals, which looks like a chimney emitting black mist.

The surrounding water temperature has risen several degrees due to the appearance of underground hot springs, and it is still cold within 10 degrees, and the special geological structure has formed a unique underwater ecological environment at the bottom of the pool.

July lightly supported Ning Yun's chin with one hand, and held her up with the other hand around her waist and abdomen, and it was not too difficult under the buoyancy of the pool.

The strange thing is that the fish behaved as if they were preventing her from swimming into the underwater space, and July was puzzled, looking at the transparent glowing fish, and at Zhang Yishan, who was waving her hand anxiously, she had to make up her mind to peel off the nuisance and block the way, and swim over with Ning Yun.

The water temperature is constant at around 12 degrees, and July's heart is becoming more and more unsteady.

Behind the hole, it was a completely dark environment, dragging the clouds aimlessly diving, the fish did not follow down, and the separation of the hole blocked the two worlds!

Then he dived to the bottom of the pool was Sven Heding, who was physically strong and had experience in winter swimming, and he couldn't hold it back, and the depth of the dive could not be measured, but he was sure that it was 100 meters deep.

The pressure of the rolling water pierced the eardrums on both sides, and the speed of the swinging arms and strokes was slowed down by the low temperature stimulation.

The body has reached its limit, where are they?

Sven Heding noticed the light at the bottom of the pool on his eye mask, and ventured to open his eyes, and a transparent strange fish with a tail surrounded the bottom of the cold pool, forming a circle, and he didn't have time to enjoy the underwater scenery. My instincts told me that they had gone there.

……

July chuckled in his heart, and as soon as he let go of his hand, Ning Yun fell vertically, and there seemed to be a suction in the abyss pulling the unconscious Ning Yun, and in a blink of an eye, he was gone. The heart said that what he had just touched was like the feeling of being brushed over his arm with a light veil, but he couldn't see anything in the dark. It is impossible to find the lost clouds.

The water pressure in this place was so strong that it pressed against the lungs, and with nearly half an hour of breath-holding, the inside of July's skull almost felt like it was about to explode.

"Gollum, Gollum!"

Bubbles surged in the water layer, and with a wave of his hand, he came across a chain that resembled an iron cable, as if something was hanging on it, swinging back and forth with the undercurrent of the water.

"Gollum, Gollum!"

There was another bubble sound, July's ears were ringing and dizzy, his ears were filled with cold water, and his mind was full of noise. Someone was slowly swimming towards July's location, and the faint white light grew brighter as the distance approached.

July's reaction speed was half a beat slower than on the ground, and he didn't strike until the thing was close to his own position, and fighting was not a witch woman's forte. But the force of the shot was obviously not light, and the pink little fist touched the solid flesh, and only then did he suddenly see Sven Heding's white face.

Under the resistance of the water, he was still beaten a long distance, "How is he?" July had no idea that this foreigner, who had only met a few times, would jump off despite the low temperature of the pool.

Sven Heding covered his bloody nose and made a gesture to identify himself, and July paused his head in embarrassment.

Sky! Sven Heding's scalp was numb, and his back was cold.

Unidentified underwater light sources are lighting up the dimly lit cavern space, and groups of plankton like fireflies are glowing white in droves.

Aquatic organisms have different habits from those of terrestrial organisms, and July learned that there is a species of plankton beneath a certain thermostatic water layer that will display its fluorescence from day to day.

Sven Heding's astonishment was not the changing light of the creatures, the brighter and brighter light of the creatures, the situation inside the cave became clearer.

Dense iron cables were like spider web-like rings around the two of them, and the old iron chains were rusty, and I don't know how many years had passed since they were arranged in the water layer. What is even more terrifying is that there are rows of "objects" evenly hung on the chains, that is, unidentified objects that were touched before July.

Corpse! The corpses, all dressed in pure white clothes, were hung on iron chains, and Sven Heding suddenly remembered the frozen meat that every household hung on the shelves in winter when he passed through a province in China.

The corpse was extremely complete, and there must have been a female corpse between the two male corpses, her hair was scattered in the water, and there was no trace of decay on the flesh and skin of her face.

Thousands of such corpses hung from the criss-crossed chains.

Fortunately, they all had their eyes closed, and the chain passed through the corpse's shoulder collarbone and tied them firmly, otherwise Sven Heding would have had a nervous breakdown.