Hongze Lake, in the lower reaches of the Huai River in the western part of present-day Jiangsu Province. It was originally a group of shallow small lakes, called Fuling Lake in ancient times, called Po Putang after the Han Dynasty, called Hongzepu in Sui, and was originally named Hongze Lake in Tang (618-907). Hongze Lake is a basin with high and low in the middle, its geometric form is extremely irregular, the artificial stone dam of the northeast-southwest arch is 15 kilometers away from the center of the lake, and the rest is the natural lakeshore, the shoreline is curved, and the bank slope is gentle. Hongze Lake is rich in aquatic resources, and there are nearly 100 species of fish in the lake.

Laozi Mountain, located on the south bank of Hongze Lake, is the mouth of the Huai River, surrounded by water on three sides, a mountain is connected to the north and south, and is famous for its beautiful lake and mountain scenery. Legend has it that Lao Tzu is a descendant of Peng Zu and was born on the shore of Huaishui. His mother was pregnant because she ate a plum floating in the water, and she was conceived for 81 years and gave birth to a gray-haired son, so she was named Li Laozi. Also because there are three leaks on the ear, also known as Lao Dan, the road number is still a dragon. In order to develop the Western Regions, the Zhou Dynasty promoted Zhou rites and sent Lao Tzu to lobby in the West. One day he rode a green ox from heaven and fell to a reef in the middle of the sea, and then the sea receded, and the reef became a small mountain. He cultivated and alchemy here to cure the fishermen, and people respectfully called him Taishang Laojun, and called this mountain Laozi Mountain.

On the shore of Hongze Lake, there are legends that an ancient city will surface every 100 years, some people say that they have seen an ancient city in the center of the lake, and some people say that he once bought something in the ancient city. However, the secret of the ancient city in the middle of the lake is only in folklore, and there have been people from the rivers and lakes who have entered the lake to explore, but they are all trapped by the fog in the lake. Quite a few people get lost in the lake because of this. (Note: According to research, the ancient city is Sizhou City, which was flooded during the Kangxi reign of the Qing Dynasty.) This is different from historical facts, and the fictional content of the novel does not need to be delved into. ）

Xiao Ling hurried to the foot of Laozi Mountain and arrived at the edge of Dehongze Lake. I bought a small fishing boat nearby, mixed in with the nearby fishermen, and followed the surrounding fishermen into the lake every day to fish.

Xiao Ling's fishing skills were learned from the old man Wu in Wujia Village, and he comprehended it himself, and he already had a deep level. Fishing in this Hongze Lake is often a fruitful harvest. This also caught the attention of the surrounding fishermen. Some came to discuss the experience, and some came to make trouble. Xiao Ling is very enthusiastic, and everyone who comes to ask for experience is carefully explained. The one who came to make trouble was to send it away with a few punches and kicks. Within a few days, no one dared to make trouble, and won the respect of many fishermen.

On this day, Xiao Ling rowed a small boat and followed several fishing boats to catch fish together. All the way to the center of the lake, rowing more than ten miles away. Several fishing boats stopped and cast their nets to catch fish.

Xiao Ling looked towards the center of the lake and saw the bright sun. Only within a few miles of the center of the lake, the fog was heavy, and it was impossible to see the situation inside.

Xiao Ling rowed the boat and rowed towards the center of the lake. When several fishing boats saw it, one of the big men came out and shouted, "Brother Lin Xiao, the middle of the lake is dangerous, you must not approach." It's a ghost town, and you can't get out if you go in!"

Xiao Ling's name is now known in the rivers and lakes, and this time he is alone to explore the 'Yin Dan Ruins', Xiao Ling does not want to make extraneous branches. is here under the pseudonym Lin Xiao. Hearing the shouting at this moment, Xiao Ling replied: "Brother Qian, don't worry! I'm just walking around here." You've told me this ghost town many times. The younger brother knows the severity, and just wants to get closer, catch some big fish and go back. ”

Xiao Ling arrived here and inquired many times. The fishermen around Hongze Lake have the legend of 'ghost town in the middle of the lake'. It is said that it is the center of Hongze Lake, which is connected to a ghost city in the underworld. It is surrounded by fog all year round, and it is full of psychedelic inside. There are often all kinds of unidentified ghosts coming out to grab food, and anyone who enters the fog will be caught by the ghosts to eat. Fishermen in the surrounding area have also designated the misty area in the middle of the lake as a forbidden area, and passing boats have gone far away.

Xiao Ling rowed a small boat and slowly rowed around the misty area in the middle of the lake. While observing the surrounding terrain. I saw that the fog was so deep that it covered a radius of several miles in the middle of the lake. Although the sun was shining, no fog was seen. There was a light breeze on the lake, and the fog was not far away. It seems that this fog is fixed here and will not dissipate.

After observing for a long time, Xiao Ling rowed a small boat around the misty area in the middle of the lake for a week. Although it was faintly visible that the place in the middle of the lake had been laid out in a large array. This formation is in harmony with the surrounding lake, and at a glance, there is no clue to be seen.

Xiao Ling took out a piece of wood from the boat and rowed the boat just a foot away from the fog. Then throw the wood chips into the fog with all your might. I could only see the fog tumbling inside, and then it returned to its original state. No sound was heard from within.

Xiao Ling was puzzled, and then threw a kitchen knife on the small bed into the fog. I saw the fog rolling, and I didn't hear a sound.

At that moment, Xiao Ling took out a wooden stick from the boat, and the wooden stick was long. Xiao Ling tightened his grip on the wooden stick and poked one of them into the mist.

Xiao Ling only felt a strong force coming from the wooden stick, and hurriedly lifted his true qi to stabilize his body. Seeing the fog tumbling for a while, the power from the wooden stick in his hand became stronger and stronger. The force is parallel to one direction, but there is no other change except for the increase in force. Less leaning, the force was transmitted to Xiao Ling's hand through the wooden stick, and then to the boat, so that the boat began to rotate. Xiao Ling was about to pull the wooden stick back, when there was a cracking sound, and the wooden stick broke, one piece was in Xiao Ling's hand, and the other part disappeared into the mist.

Xiao Ling hurriedly picked up the oars and stabilized the boat's rotation. Then he walked some distance further afield. Then Xiao Ling picked up a wooden stick and probed into the mist, felt the direction of the force, and then quickly withdrew the wooden stick. In this way, Xiao Ling circled the mist in the center of the lake again, and constantly used the wooden stick in his hand to sense the direction of the force everywhere. After a lap, Xiao Ling had a sudden expression of realization on his face. He said in his heart: "The force from this mist is parallel inward, and the entire mist area is rotating. Objects that fall into it will float and spin under this force, and will not fall directly into the water. No wonder there is no sound of falling water. ”

After a pause, he pondered, "Could it be that this is a whirlpool? No, there is no problem with the direction of the lake here." Looking at the surrounding lake, I saw that the lake was stable, and there was no obvious change in the water flow around the center of the lake.

Xiao Ling thought for a moment, and then rowed the boat close to the mist in the middle of the lake. Attach two sticks from the boat together with a rope. Then he leaned into the water diagonally and saw that the other end of the stick had gone deep into the lake in the foggy area. The sticks did not change in the slightest. Xiao Ling lifted the wooden stick slightly, and as soon as it was exposed in the misty area, he felt the force. Xiao Ling pressed down hard, and the force disappeared immediately.

Xiao Ling took back the wooden stick and thought to himself: "There is nothing wrong with underwater, it is safe." I'm afraid that the secret of this 'Hidden Dan Ruins' can only be explored through this water. The mystery of this great array also needs to be solved from underwater. After thinking like this, Xiao Ling turned the boat around. When he got to a place, he caught some fish in his net, and then he rowed back.

Back on the shore, everyone saw that Xiao Ling had returned safely. A few fishermen rushed over, and found that Xiao Ling didn't gain much. After a few polite words to each other, they left.

Xiao Ling came ashore, but went to the market. When he arrived at the bazaar, Xiao Ling bought several large bundles of ropes, added a heavy anchor to his boat, and then went to find some reed pipes. Then I paid a few movers to bring the purchased things back to the boat. Attach the heavy anchor to the boat.

Late at night, the moon and stars were scarce. Xiao Ling woke up and saw that it was a good day. So he rowed alone and came to the center of the lake.

One man and one boat, rowing alone under this moonlit night. Xiao Ling's mind flashed Liu Yixu's figure from time to time, facing the night sky, with a lot of sadness.

When the boat reached a distance of 100 meters from the center of the lake, Xiao Ling lowered the heavy anchor on the small boat. Make sure the boat doesn't get blown away by strong winds. Then he tied the ports of the ropes he bought back and connected them all.

Xiao Ling put a lot of reed pipes in his suit, tied one end of the connected rope to the boat, and tied the other end to himself. Then he jumped into the water and slowly swam towards the center of the lake.

When he arrived at the fog area in the lake, Xiao Ling puffed up his true qi and dived into the water with his head down. Open your eyes in the water and slowly swim forward.

Xiao Ling saw that there was nothing unusual in the water, and when he looked at the water, he could see that it was gray and hazy, and he couldn't see the situation clearly. At the moment, he only cares about sneaking forward, ignoring the scene on the water.

The farther you swim towards the center of the lake, the more unclear the light becomes. Xiao Ling held his breath and sneaked cautiously, until the gas in his body could not be connected. He took out a reed tube and put it in his mouth, and poked one end of the reed tube out of the water. Although due to the force of the rotation of the water, the reed pipe was blown off when it poked out of the water. But at that moment, he could also breathe a sigh of relief. Then, the True Qi sneaks and travels a long distance.

Xiao Ling sneaked with all his might, and for about a quarter of an hour, he was blocked by a wall in the water. Through the faint light, Xiao Ling looked around. It was found that in front of it was a low tower, and the low tower protruded out of the water, and the top of the tower could not be seen clearly. Xiao Ling then looked around and found that there were small towers built around a tall tower. Small towers are densely embedded around the towers, connected together. Xiao Ling then carefully thought about the location of the distribution of the small towers. I faintly feel that it is unfathomable, but I can't understand it for a short time, and I only feel that there is a deep mystery in it.

Xiao Ling explored again and found that the towers were connected to each other. Each small tower is tightly enclosed, and there is no place to enter or exit. There is only a high tower, and there is a gate on the south-facing side.

Xiao Ling sneaked to the gate of the tower and saw that the gate of the tower was a stone gate. The stone gate was tightly sealed. There was only a depression left on the east side of the stone gate, and Xiao Ling saw the shape of the depression, and his heart was stunned. He untied the rope from his body and hung it on a boulder next to the stone gate. Then he took out the stone engraved with the words "Yin Dan Ruins" from his clothes. You can see that the shape of the stone is in harmony with the shape of the depression.

At that moment, Xiao Ling pressed the stone on the depression, but there was no movement except for the time. Xiao Ling immediately used some force in his hand to press the stone tighter. With this exertion, he unconsciously used a trace of true qi in his hands. That true qi acted on the stones. Suddenly, Xiao Ling reacted, and Xiao Ling only felt that the true qi in his body seemed to flow uncontrollably to the stones.

After the stone was injected with Xiao Ling's true qi, a stream of energy flowed out of it, and it instantly entered the stone gate of the tower. A halo of light swirled around the stone door, and then one end slowly pushed open to the side.

As the stone door of the tower opened, under the pressure of the water. Suddenly, the lake water flowed into the stone gate. Xiao Ling clung to the stone, and under the impact of the water, his body was also unstable. When the stone gate was halfway open, it was swept into the stone gate by the heavy water. It's just that its hand grasps the stone firmly, and at the same time as it flows into the stone door. The stones were also grasped in his hands.

The stone door lost the energy from the stones, and after opening more than half of it, it quickly closed again under another force. Back to normal.

Xiao Ling held the strange stone and entered the tower. Under the force of the water, he rushed inward for a long distance to stabilize his body. When he settled down, he found that he was already standing on a stone slab. There is a layer of diving lake underneath.