The bottom of Fuxian Lake seems to be another world, with only one color, all around it is silent and dark everywhere. Humans can conquer the highest mountain, but may not be able to conquer the deepest waters. Even if it is not easy to explore a lake.

More than a dozen figures diving gradually approached the ancient city underwater. The outline of a city could be vaguely seen from the video, and the people in front of the computer were all tense.

The six archaeological teams began to separate each other when they approached the ancient city, setting apart. Four frogmen were interspersed among them, staring cautiously at a few figures. They were not responsible for excavation work, but only needed to ensure that these people quickly approached and then provided rescue in an accident, striving to avoid any accidents.

The progress was very smooth at the beginning. The six people were responsible for their own areas and locations, and surveying and mapping the ancient city. Their main job was to draw pictures such as maps, which would be used to reflect the entire ancient city in three-dimensional images in the future.

Time passed by bit by bit, and it was already an hour before they went into the water. The oxygen content of the oxygen cylinder was about two hours. When the detection work reached about one hour and forty, it was time to start returning to the water surface to avoid the phenomenon of not having time to return and then lacking oxygen.

The archaeological team, which had already breathed a sigh of relief in front of the computer, gradually relaxed at this time. From now on, everything went so smoothly. In almost half an hour, the underwater people could come up.

Li Fei'er turned her head, her eyes passed through the crowd and fell on Wang Jingzhe, who was leaning against the railing without expression. The other party seemed to feel someone was looking at her, so she came into contact with her eyes. Wang Jingzhe stretched out his finger to the water surface of Fuxian Lake, and shook his head meaningfully.

Li Feier frowned slightly, then turned her head and looked at the video.

At the edge of the southeast corner of the ancient city, there was a figure holding a city wall in the middle, and holding a camera in the other hand, slowly swimming forward to record the scene. When he swam for more than twenty meters, there was a place similar to a guardhouse above his head. The water flow changed significantly, and a vortex began to hover from bottom to top.

This is the complex situation underwater. You can't expect anything to happen. For example, underwater is originally very calm, like a static world, with the flowing water slowly as if it doesn't move at all. But when an object with a slightly larger size suddenly swims back and forth, it may change the water flow. The change in the water flow can be exponentially amplified, just like when you throw a stone down on a calm water surface, the water waves brought out will spread outward one by one, and the distance may reach dozens of meters. This is even more so when the water flow changes underwater, and even if you encounter an undercurrent, the situation will be even more dangerous.

As the figure swam down the city wall, an undercurrent gradually rose, bringing up a whirlpool. A brick on the top of the guardhouse on the city wall shook twice, then swayed, then fell from the top, and headed directly to the people below.

Because the bright flashlight in this person's hand and the video camera above his head were facing forward, not only himself, but no one in front of the computer saw the stone falling from above until the stone fell silently on his head. After the picture shook violently for a few times, the person in front of the computer saw that the picture suddenly flipped over and was falling towards the bottom of the water.

Suddenly, everyone on the boat was shocked. He obviously did not expect such a change to occur. Li Fei'er's reaction was quite fast. She quickly glanced at another scene. At this time, the other archaeological team members and four frogmen had not seen the accident for the time being, and the people on the boat were immediately stunned.

The picture stopped. The man named Qiuyu lay on his back on the sand and stones at the bottom of the lake. No one knew that the suddenly falling brick hit his head, bleeding his head. If this brick used to build the city wall was taken to the shore, it would weigh about fifty kilograms, and the distance from the city wall and the guardhouse was about ten meters. If it weren't for the water that took most of the force, this distance and weight might have smashed the person to death on the spot.

Everyone on the boat knew that an accident had occurred, but no matter how anxious they were, it was useless, because you couldn't contact them at all, so you could only hope that someone could discover this sudden change.

"What's going on? Why did Qiuyu suddenly fall down?" Wen Feng asked in shock and confusion.

Li Feier shook her head and said, "I don't know. I guess there was something unexpected, he didn't notice..."

Huang Zhan stood up and said to Huang Jiulang: "Director Huang, send someone down to rescue immediately."

Huang Jiulang immediately made a gesture to several frogmen who had been ready to respond. Then the two of them took their yang energy masks and jumped into the lake, diving quickly into the water. Then Huang Jiulang frowned and looked at Wang Jingzhe. He shrugged his shoulders, which meant that they were embarrassed, I had already reminded him.

When the video scene on this person's head was still for about two minutes, suddenly a figure approached quickly from above. It was a frogman closest to him. When he found that the figure under the city wall was missing, he quickly swam towards him. Fortunately, Li Feier reminded him carefully before they went into the water, so there was a frogman who was closer to Qiuyu and was always paying attention to him. Otherwise, if he delayed for a while, the person would definitely be helpless.

The frogman fell to the bottom of the lake and helped Qiuyu up. He found that the person was already unconscious. Fortunately, he was still biting the oxygen mouth in his mouth and able to breathe independently. The frogman helped Qiuyu up, inserted his hand under the other party's arm, swung his feet continuously and quickly, and rose towards the water surface. At the same time, when an unexpected move occurred on their side, another frogman quickly came over and accelerated with him from the left and right side.

When the video was rising towards the water, the people on the boat were slightly relieved. If this person was lucky, he would have time to treat him.

Li Fei'er turned her head "swish" and looked at Wang Jingzhe with a complicated expression. The other party narrowed his eyes and leaned lightly on the railing.
Chapter completed!