Xu Xin walked to the iron door that looked extremely heavy.
The design of this iron door is like the door of a vault, and he is now inside the door.
Xu Xin had seen how the vault door was opened in movies and games. It was all done by rotating a circular disk outside the door that looked like a reverse disk. After a sound of air being released, the circular door would be pushed outward and then moved horizontally to the left or right.
But he was in this room at this time, so there was no disc-like switch, so he could only try to push the door with his hands.
"Zizi--" A harsh sound of metal friction was heard, and with Xu Xin using all his strength, the door was slowly pushed open.
"There's hope!" Xu Xin was delighted when he saw the door being pushed, and continued to push hard.
"Click!" With a crisp sound, the round iron door was completely pushed out of the door frame, leaving a gap two fingers wide between the door frame and the door.
Xu Xin didn't rush to open the door, but looked outside through the gap.
He originally thought that there would be a modern room like a vault outside, but to his surprise, what he saw through the gap was a wall made of reddish soil, as if he had entered a cave again.
"Is there another cave outside?" Xu Xin was a little confused.
Doesn't this mean that buried alone underground is a square iron room that looks like a vault, and that a European who came from their world in the 1980s died in the room?
So strange.
"Keke, there's danger outside...what are you doing!?"
Xu Xin looked at Coco, who was lying on the ground scratching the skull with her claws, and the corners of his eyes twitched.
The poor skull was rolled on the ground by Coco as if it were a ball, and he slapped it left and right. The scene was very weird. A cute little panda was playing with a skull.
"Hmm?" Keke looked at Xu Xin puzzledly.
That's right, Keke is a red panda, you can't expect him to be afraid of human skulls. Xu Xin shook his head helplessly: "I have to give you a good bath after we get out!"
"Hmm!"
However, the little guy's fuss did dissipate a lot of his inexplicable fear of the skeleton.
"Coco, is there any danger outside?"
"Hmm." Coco shook his little head, indicating that he did not feel any danger.
Xu Xin took a deep breath, put his fingers into the gap, and pulled the door to the side with force.
With a sharp sound, the door was slowly opened halfway.
Xu Xin stopped, just enough for him to pass.
He walked through the door and looked outside.
Seeing everything outside the door, Xu Xin was stunned. He rubbed his eyes and looked again.
He thought it was a cave, but he was wrong, very wrong.
"Ah!" Even Coco let out a cry of surprise.
Xu Xin subconsciously took two steps forward, then suddenly stopped.
He suddenly found himself on the edge of a cliff.
That's right, on the edge of the cliff.
Small pieces of rocks and soil rolled down from the edge of the cliff. Xu Xin looked down and couldn't help but grit his teeth. His facial muscles twitched and a bead of sweat slid down his forehead.
Below the cliff, at a depth of almost a thousand meters, is a huge underground world that stretches as far as the eye can see.
With the help of his night vision, he saw everything in the underground world.
"Is this... true...?" Xu Xin's lips trembled slightly as he stared blankly at everything in front of him.
He saw countless green and blood-red vines dancing wildly below.
I saw a giant carnivorous plant with its bloody mouth wide open, swallowing an animal that looked like a dinosaur.
I saw a huge monster covered in green seaweed, dozens of meters tall, tearing off the blood-red vines and stuffing them into its mouth.
I saw countless flying insects as big as cars with dazzling tails flying around the carnivorous plant.
Demons are dancing wildly.
The scenery before him was so unreal and the amount of information was so overwhelming that he was completely stunned.
He looked around blankly again.
At this moment, he was in a cave at the top of the underground world. The top of the entire underground world was right above his head, and he could touch it with his hand.
If the underground world is regarded as a huge room, then he is now a small insect in the gap between the lampshade and the ceiling, looking down at this huge room, and those monsters are the masters of the room living in this room.
The dense red dots on the map made him feel a little fear and despair.
[Congratulations, you've discovered one of the hidden secrets behind this world and become the first survivor to discover the underground world. Rewards will be distributed after this jungle exploration event ends.]
[Survivors please do not share the secrets of the world with those who do not know the secrets, otherwise you will be severely punished.]
[Don't panic. The underground world is not something survivors can handle at this stage. How to deal with the beast riot is what survivors need to consider now.]
【Survivors, please continue to work hard, strengthen yourself, and strive to survive in this world. 】
[Again, a warm reminder: never abandon your tree house. It is your only support.]
The mysterious voice sounded in his ears again, bringing him back to his senses.
Against the backdrop of these monsters, he actually felt that this mysterious voice was so familiar.
"Wait a minute! Where exactly is this place? Why is there such a large space and so many monsters underground?" Xu Xin asked the question he wanted to ask most.
[The secrets of the world need to be explored by the survivors themselves]
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