This smoke appeared too suddenly, not to mention Gu Fengchun, even Chen Si and the others were just as caught off guard. The smoke gradually thickened, and after a while, the surroundings were plunged into a milky white environment.

"It's foggy, everyone pay attention, put on gas masks!" Chen Si's voice immediately came from the communicator. Qiu Huiyan has long said that the fog in this environment is a miasma. After listening to Chen Si's words, everyone immediately stopped climbing, quickly took out gas masks and oxygen packs from their backpacks, put them on, and then continued to climb up.

Gu Fengchun always felt that this fog was weird, and he suddenly became vigilant in his heart. He looked at Luo Xiaodan, who was next to him, and said, "Xiao Dan, pay attention, this fog is weird." ”

Luo Xiaodan nodded and said, "I know." "Luo Xiaodan's mountaineering skills are slightly better than Gu Fengchun's, if it weren't for Gu Fengchun's strength and large intervals, Gu Fengchun would really not be as skilled as Luo Xiaodan.

Seeing Luo Xiaodan's rapid movements, Gu Fengchun secretly breathed a sigh of relief. If this guy has a fear of heights, then it's a big problem. In such a high place, if you have to climb up with a person on your back, the difficulty is the coefficient of going to the sky.

Just when Gu Fengchun was about to say something, suddenly, he seemed to be pulled by something. He hurriedly looked back, but could not see anything. He secretly said in his heart that something was wrong, and wanted to give everyone a warning, but before he could say anything, he disappeared on the vast mountain wall.

"Feng Chun ......" Luo Xiaodan's sharp and panicked voice resounded throughout the entire mountain wall at once, and if there was a snow-capped mountain above his head, this sound was enough to cause an avalanche. Luo Xiaodan's shock was normal, because Gu Fengchun was under her gaze and disappeared out of thin air all of a sudden!

Luo Xiaodan can be regarded as a person who has seen countless strange scenes, and she is also very calm, but when it comes to Gu Fengchun's affairs, she can't calm down.

"What's going on?!" Chen Si and Qiu Huiyan were both above, and when they heard Luo Xiaodan's scream from the communicator, their hearts were shocked, and they thought that Gu Fengchun had fallen from the cliff. Falling from such a high place, there is no way to survive.

"Feng Chun is gone! Feng Chun is gone!! Luo Xiaodan's voice trembled. But she kept reaching out to touch the place where Gu Fengchun had disappeared, hoping that she was just hallucinating and couldn't see Gu Fengchun.

But the tentacles are empty, and Gu Fengchun has long been gone.

"Did he fall off a cliff?" Qiu Huiyan asked this sentence first. But Chen Si's movements were faster, and he immediately loosened the safety buckle and slipped down from above to see what was happening.

"No, he suddenly disappeared before my eyes." After Luo Xiaodan panicked, he immediately regained his composure. Without Gu Fengchun by her side, she herself would automatically become strong. In fact, the reason why a woman is weak is because there is a strong man who helps her support the sky above her head. She doesn't have to worry about the wind and rain, so she will become weak. But once they are allowed to be self-reliant, they may not be as skilled and strong as men.

"Oh!" Hearing this answer, Qiu Huiyan's heart quieted down. Here, as long as there is no accident and death, Gu Fengchun will be safer than anyone else. This disappearance may just be a trick played by prehistoric humans and Gu Fengchun. Qiu Huiyan is not worried about this. She knew the value of her son, so prehistoric humans wouldn't have done anything to him, at least yet. Besides, this may not have been done by prehistoric humans. Qiu Huiyan's eyebrows showed a burst of anticipation and doubt.

Chen Si also slipped to the position where Gu Fengchun disappeared at this time, he frowned, and after looking around, he stopped talking. just said lightly to Luo Xiaodan: "Feng Chun will not have an accident, don't worry," After speaking, he climbed straight up.

Luo Xiaodan was very puzzled by the reaction of these two people. Chen Si has always been nervous about Gu Fengchun's safety, and Qiu Huiyan is Gu Fengchun's mother, why are the two of them so indifferent to Gu Fengchun's disappearance this time?

"Be careful, it's not going to be quiet here anytime soon." Chen Si turned around and said condescendingly. His face was very gloomy, but Luo Xiaodan could hear the hidden concern in Chen Si's gloomy voice.

"Huh?" Luo Xiaodan was puzzled by Chen Si's words.

"Prehistoric humans should have attacked us. Feng Chun disappeared, probably because they didn't want to hurt Gu Feng Chun, so they pulled it away, and we ......" Chen Si paused and said, "There are many people who will die here!" ”

Luo Xiaodan shuddered. Chen Si's words were not to intimidate her, but to be the truth. "Everybody picks up and climbs. Also, the weapons on your body must be equipped well, and you must be able to enter the combat state at any time! Chen Si's orders came down one after another.

"Old Tang, where have you been!" Chen Si asked Tang Maiqiu about the group of warriors who were still continuing to open the way above.

"Less than fifty meters from the top! Forty more minutes will be enough for us! This area is dangerous! That's where the birds came, and the rock walls here are covered with fenberry grass! And these fenberry grasses, which are already of adulthood, can walk on the rock wall, which brings great difficulties to our work, and I think those black birds flew here just now for these fenberry grasses! Tang Maiqiu's voice was very hurried, and from this voice, he could also hear that there was deep exhaustion in his voice.

"yes, got it." Chen Si naturally knew the relationship between this fenberry grass and the black bird. In fact, the replicating virus in those black birds was obtained from the fenberry grass. Because there are records to prove that in previous research on the "001" project, some team members accidentally ingested fenberry grass and caused mutations, one of which was that someone became a replicant. The Bureau's pathology department is very eager to get this fenberry grass to study, if they master this technology and put it into use by the military, it will be a very terrifying chemical weapon.

"You should also be careful not to have any contact with these fenberry grasses." Chen Si took a sip and said slowly. He looked back at the empty position of the mountaineering rope next to Luo Xiaodan, and was very anxious. "Feng Chun, where are you......" If Luo Xiaodan knew the anxiety in his heart, his mood would definitely be turned upside down for the time being......