A smoky gray turbid gas escaped from behind the door. Ke Lan quickly turned off the air filtration system on the mask of the protective suit and held his breath.

Then, he took out a test paper from his pocket, wet it with clean water, and carefully put it on.

As soon as the smoky gray smell came into contact with the moist test paper, the front end of the test paper turned black, but within a few seconds, the inky black faded away, leaving only a light gray stain.

"It's poisonous... but the toxicity is not very strong..."

Ke Lan then opened the filter valve again and tried to take a breath of the air mixed with this gas.

In addition to the pungent smell of the disinfectant in the filter box, there is also a slight fishy and sweet smell in the nasal cavity, which is a bit like copper rust.

Soon, a feeling of nausea came over me, and a sour and numb feeling appeared in my throat.

Fortunately, there was no more severe poisoning reaction, and this level of poisoning only made people feel slightly uncomfortable.

The 776 Special Forces Team was equipped with an old-fashioned protective suit that did not have a gas cylinder or oxygen generator. Ke Lan had no choice but to bite the bullet and continue breathing the fishy air.

However, he still injected himself with two broad-spectrum antitoxin serums and one hormone in advance... After all, even if the toxicity in the air is very weak, as time goes by, the toxins will continue to accumulate, and quantitative changes may also lead to qualitative changes.

"No wonder they use an airtight door... Could there be a gas chamber behind this door?"

Ke Lan inserted a crowbar into the crack of the door, used the door frame as a fulcrum for leverage, and pressed down hard.

"Squeak--" The heavy airtight door was "pushed" open little by little, and Ke Lan didn't stop until the gap was large enough for someone to enter sideways.

"What kind of design is this?!" Ke Lan looked at the scene inside the door in shock, and even subconsciously took two steps back.

The door was open, but Ke Lan couldn't walk in because the back door was a cliff. As long as Ke Lan stepped over the door frame, he would immediately fall into the abyss below.

The other side of the door was actually opened on a vertical cliff.

Ke Lan raised the flashlight and shone it into the distance - this was a huge underground space. The light from the flashlight dissipated after being emitted for nearly a hundred meters or so, and there was no way it could reach the other side.

Even the giant stone gate under the glacier could not compare to this scale.

"Such a large space... Are the Alphas going to build an underground city in it..."

The flashlight couldn't illuminate the edge in front of him or on the left and right sides, so Ke Lan could only point the beam of light below the cliff. However, this pointing almost startled him to the point of falling off.

It should be the back of some creature, with a spine that is clearly articulated and arched high, just like the top of a roller coaster track...

Ke Lan had seen this kind of entertainment facility from the old era in the information. The largest roller coaster ever built by humans was the Kingda Ka Roller Coaster located in Six Flags Amusement Park in New Jersey, USA. The highest point was 139 meters. From a distance, it looked like a giant snake made of steel. For this reason, this roller coaster was also nicknamed "Snake of the World".

But if the "World Snake" was placed in front of this thing, it would just be a... slightly larger insect.

Ke Lan couldn't see the whole picture of the thing. It was too big. Except for the top of the arched back, the rest of it was hidden in the darkness that no light could penetrate.

It's like a mountain, a mountain that sinks into the ground.

It has iron-gray skin, its surface covered with shocking scars. Around the scars, something like blood has formed large black scabs.

Countless stalactites penetrated its skin and were deeply nailed into the gaps in its spine. The diameter of each of these stalactites was more than one meter, but compared with this back, these stone pillars were like thin and long steel needles, densely packed on it.

There was no record of such a creature in any information... not even in any strange novel... Ke Lan's lips moved unconsciously. He wanted to find some words to describe this huge creature, but he found that language seemed so pale at this time.

"…It's a new 'primordial species'."

The Honghuang species, also known as the "Honghuang epic", is an extremely special indigenous creature on Alpha. Each Honghuang species is basically a unique individual. They have no tribes or peers, and their close relatives and ancestors cannot be found in the order of biological evolution... These Honghuang species seem to have the same age as this planet, and a way of survival that is simply difficult for humans to understand.

Even Alpha has only one "satellite", which is a primitive species called "Katz". It lives in an orbit 550,000 kilometers away from Alpha and relies on absorbing energy from stars to maintain its life...

Someone once said that if the myths on Earth were true, then the "divine beasts" such as the Vermillion Bird and the Black Tortoise would be on the same level as these "primordial species".

Before opening the door, Ke Lan had thought of countless hypotheses about what was behind the door, but he never guessed that a "primeval species" would be imprisoned in the underground space of this deserted island!

He took out the camera with trembling hands and wanted to record the scene, but when he looked at the screen, he found that there was nothing below the cliff.

“?!”

The next second, Ke Lan reacted. This was an image from his memory, just like the city that sank into the sea!

…

"So... at least, there was once such a huge monster imprisoned here..."

Ke Lan looked into the abyss below. The mountain-like back had disappeared, leaving only endless darkness.