At this moment, Suna discovered a cave hidden in the mountain wall. The entrance of the cave was covered by some vines and snow, and it was difficult to find without careful observation.
"Maybe the creature is hiding in there," said Suna.
Lin Yu nodded and said, "Be careful, let's go in and take a look."
They entered the cave, which was filled with a pungent smell. Strange lights flickered on the walls, as if inscribed with some mysterious runes. Lin Yu shone his flashlight on the walls and discovered that the runes resembled an ancient language, which he could not decipher.
Suddenly, there was a violent tremor from deep in the cave, and the creature reappeared and rushed towards them. Lin Yu dodged sideways, and Suna fired, but the bullets hit the creature and seemed to have no effect.
Lao Chen shouted, "Attack its eyes!"
Suna aimed at the creature's eyes and fired. The creature roared in pain. Lin Yu took the opportunity to rush forward and stabbed the creature's legs with the dagger in his hand. The creature swung its claws and knocked Lin Yu away.
Lin Yu hit the wall of the cave heavily. He felt a sharp pain, but he endured the pain and stood up again.
Suna and Lao Chen continued to fight the creatures, cooperating with each other and trying to find their weaknesses.
After a hard fight, they finally discovered the creature's fatal flaw - on its abdomen, there was a piece of skin not covered with hair, and the color there was lighter, which might be its weakness.
Lin Yu shouted: "Suna, attract its attention, Lao Chen, prepare your weapons."
Suna kept shooting at the creature, which was enraged by her and chased her. Lin Yu took the opportunity to go around behind the creature, and Lao Chen handed Lin Yu a specially made crossbow.
Lin Yu aimed at the creature's abdomen and shot the crossbow arrow with force. The crossbow arrow hit the target accurately, and the creature let out a scream and fell to the ground.
However, just when they thought it was over, more roars were heard from the cave, as if countless unknown creatures were approaching.
"Oh no, this might be their nest." Old Chen's face changed drastically.
Lin Yu said: "Don't be afraid, let's find the exit first."
They searched everywhere for an exit in the cave, but the cave was like a maze with many forks in the road, making it difficult to tell the direction.
Just when they felt desperate, Lin Yu discovered a faint ray of light.
"That might be the exit!"
They ran towards the light, the roaring behind them getting closer and closer.
Finally, they ran out of the cave and saw an open snowfield in front of them.
"Let's go!" Lin Yu shouted.
They ran desperately, with the unknown creature chasing them closely.
At this moment, there was a roar in the sky. It turned out that the support helicopter of the 749th Bureau had arrived.
The machine gunners on the helicopter opened fire at the unknown creatures, which were frightened and fled back into the cave.
Lin Yu and others finally breathed a sigh of relief and boarded the helicopter.
"This investigation is just the beginning. The secrets of Changbai Mountain are far from being revealed." Lin Yu said secretly in his heart as he looked at the mountains below.
The helicopter gradually flew away, and Changbai Mountain returned to its former tranquility. However, no one knew whether there were more unknowns and dangers hidden in those deep valleys and caves...
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