This passageway winds and twists, no more than two meters wide and three meters high. Although there are signs of artificial excavation and paving all the way, it is unknown whether it has been neglected for a long time or frequently washed by underground water, but many places have already been covered with rubble. Zha Wenbin was still walking well, but unfortunately, the three-legged toad suffered, if this guy wasn't thick-skinned, he would have been scratched all over his body.

  Zha Wenbin couldn't help but stop frequently to wait for it, or to help move some gravel, which made the process much slower than before. With his feet constantly soaked in water, his calves gradually became numb. Now he had to grit his teeth and keep moving forward. From the terrain, they were always going uphill, and the light from the flashlight was once again dimming, telling him that the time he could hold on was not long. Patting the bag with two sets of batteries left, Zha Wenbin estimated that he still had a way to go before reaching the bottom, but he could only turn back now.

  Along the way, similar to the previous bronze tree, five more were found in succession. Under each tree, there were some remains of bones and skulls. At this point, they had walked for more than three miles without seeing any new trees appear. Cha Wenbin thought that since it was a sacrificial site, the location where fresh blood was collected should not be far from the altar. Otherwise, the blood would have congealed by the time it was taken over, which would be a great disrespect to the gods in the blood sacrifice. As for ghostly affairs, there were no discoveries along this road, except for the echo of their own footsteps, nothing else existed.

  He also tried to choose a route that went over some exposed rocks, which could save him a lot of physical strength. The low temperature was consuming his body heat rapidly, and in this channel, apart from the occasional small fish passing by, there were only blind fish without eyes. Zha Wenbin thought that if he was really starving, he could only catch some small fish to fill his hunger, as there was no luxury of being picky in this wilderness. His main goal now was to survive and safely get out of this area, then meet up with Chaozi and take Old Wang and the others to the hospital.

  After walking for a while, the sound of water flowing came to his ears, and Zha Wenbin quickened his pace. After passing through several piles of rocks, he finally saw another huge underground lake again.

  Taking advantage of the rest time, I prepared to replace the battery, and took down the old one without throwing it away, but just put it in my bag. Before putting in the new battery, I heard a "splash" sound. Water splashed on my face. Hurriedly reopening the flashlight, I shone it carefully, only to find that the three-legged toad next to me had disappeared.

  Just as he was carefully searching, a ripple appeared in the water and a yellow figure suddenly floated up. It was a three-legged toad! It had been a long time since it had been in the water, and seeing such a large lake, how could it not be excited? After swimming around in the lake for a while, it swam towards the shore. Zhang Wenbin was about to pat its nose when he saw something he least wanted to see: pieces of bones were neatly laid out on the bottom of the lake, forming a road that stretched far away, overlapping each other. The entire area within his line of sight was white and sparkling, just like the White Bone Pond under the ancient well.

  Wen Bin crouched down to take a closer look, and compared with the previous water pool, here the bones were much larger and thicker, basically all from animals, especially those sheep horns and cattle horns were very obvious. Because the water surface was not purely static, he couldn't tell for a while how many kinds of animals there were.

  Although it can be determined that this is not human, it also looks very eye-catching. Thinking of the bronze trees used for blood extraction outside, Cha Wenbin guessed that this was probably the altar. It seems that most of these animals were used as offerings to sacrifice gods and spirits back then. Looking at the piles of white bones, one can imagine how grand the scene of worship was back then.

  The three-legged frog jumped out of the water and crouched beside Cha Wenbin, its body refreshed by the water and its spirit restored. Its eyes were even brighter than before. This made Cha Wenbin say: "Buddy, did I bring you here just to take a bath?"

  The toad clearly disdained his petty thoughts and let out a "ribbit" as it leaped back into the water, drenching Cha Wenbin once again. When it emerged from the water again, it floated quietly on the surface in front of Cha Wenbin, who remained still for half a moment. The toad swam forward a short distance before swimming back to his side and circling around him once more.

  Although Cha Wenbin didn't understand the toad language, they still managed to develop a bit of tacit understanding along the way. Looking at San Zu Chan's movements, Cha Wenbin asked: "Buddy, you're not going to have me ride on your back, are you?"

  The three-legged frog kicked its hind legs in the water and croaked: "Ribbit."

  Zha Wenbin's forehead was covered in cold sweat, he had seen him riding a water buffalo and playing in the river, but now he was riding a toad...

  Anyway, there's no one here, so I'll just try it out. Who knows if it really is coming to carry me? Even if not, I can just consider it a bath. After staring at the three-legged frog for half a day without any movement, Cha Wenbin took another jump and landed right on its neck. The body of this three-legged frog was quite sturdy, but it was also very slippery. Luckily, he reacted quickly and tightly hugged its neck to prevent himself from falling off.

  After struggling for a while, he finally managed to sit steadily. The three-legged frog kicked its legs and slowly carried him towards the center of the lake. As they went further into the middle, the water depth became shallower, which was completely beyond Zhu Wenbin's expectation. Generally, the deepest part of a lake is in the middle due to the flow of water, but here it seemed to be the opposite. The shallowest place, Zhu Wenbin estimated, was only up to his neck.

  At last, they arrived at what seemed to be the middle place. What was strange about this central location was that there were no more bones. Cha Wenbin looked around and found a total of five such bone channels extending out in all directions from here. One of them led to where they had come from, and the remaining four should also have reached their respective edges.

  These five bone channels coincidentally maintain a distance of about five meters from the middle, leaving out a small circular water area here.

  There was one thing that made Zhang Wenbin puzzled, where is the source of water here? Because there were no signs of water flow around him, and all around were bare stone walls. The top was relatively high, a dark patch, but he didn't see any holes either. If he couldn't find the source, it meant that he might have already reached the end.

  Just as he was thinking about it, his numb legs that had been soaked in the water for a long time suddenly felt a warm and fuzzy feeling. The sensation grew stronger and stronger, like someone was gently stroking him, very comfortable. When his nerves began to recover, he realized that something was amiss. It wasn't anyone's caress, but came from the flow of the water!

  He bent down and tried it with his hand, and indeed, the water temperature here was several degrees higher than outside, and it was bubbling up. Cha Wenbin carefully observed the changes in the water pattern under his feet, and some impurities were rising to the surface. At first glance, he realized that this was an underground spring! And it's a hot spring, only because this place is always shaded from light, the indoor temperature is too low, so this heat has not reached the edge before it cools down, and it can't be felt unless you come here.

  "Hey buddy, can you take me for a walk around the outskirts?" Zha Wenbin said softly as he stuck to the three-legged frog's head.

  As soon as he moved, the three-legged frog carried Cha Wenbin to swim towards the opposite side. The change in water temperature at his feet confirmed his speculation. When they reached the edge, it was that bone-chilling cold again. The three-legged frog carried him around this lake, about two football fields in size, and returned to the center of the lake without waiting for Cha Wenbin's orders.

  This circle has given Zha Wenbin a general understanding of this place. From his current standing position, there is a warm water fountain below that constantly sprays water upwards, and the water flows outwards to provide water for the entire lake. The lake is close to a regular circular shape, seemingly formed naturally, with five lines of white animal bones extending towards the center, but each stopping at a distance of about five meters from the center.

  Zha Wenbin's greatest intelligence lies in his brain's image processing ability, and with just closing his eyes, the entire lake's topographic map appears in his mind.

  Slowly, he pulled out something from his eight trigrams bag and gazed at it for a long time, unwilling to part with it.

  read3;