The object in his hand was a circular device with a solid small circle in the middle, connected to the outer circle by five bronze pillars. This thing was exactly what he found in the tenth coffin at the bottom of the ancient well, and it was also the only burial item that the living dead person brought with him.

  Originally, Cha Wenbin intended to take it out for Lao Wang to study, so he kept it in his own bag. In Cha Wenbin's eyes, this unusual thing should represent the sun, so he called it the Sun Wheel. In that coffin, it symbolized the sun, which is the heavenly realm, and it was precisely by relying on it that the final link of the super-large array that jumped out of the three realms and beyond the five elements was achieved: the Heavenly Realm.

  At this moment, the flat map of the underground lake in his mind told him that this was actually another sun wheel that had been put to many times.

  The five paths made of animal white bones are the five bronze bars on this round plate, which should symbolize the sun's rays, evenly dividing the lake into five equal parts. The middle part where the warm spring comes out is the solid small circle in the center of this round plate, and the outer circle is the outermost circle of the plate.

  The difference between the two is only in size and material. One was cast with bronze, while the other utilized a natural water domain. From the shape alone, they are identical. If one were to say that the bronze sun wheel, due to its small volume, has five equal parts of a circle which are relatively simple, then here is a full-fledged water domain, which was actually divided into five parts by five piles of white bones. In ancient times, without aerial photography and measuring instruments, it would have been an almost impossible task.

  Riding on the back of a three-legged toad, Cha Wenbin carefully examined the unassuming bronze object in his hand for the first time. Simply from the craftsmanship, if you ignore the precise calculation-like division of the area, it's not even as exquisite as those bronze coffins. In terms of material, this is just an ordinary bronze item, feeling heavy in his hand.

  After repeated observation, except for a small depression on the solid circular disc, there is no record of any floral pattern or inscription, and it is this small depression that has once again increased his interest.

  What if this depression represents the hot spring outlet underfoot? Cha Wenbin stopped thinking, patted the nose of the three-legged toad, and with a flip, fell into the water.

  The water here is deeper than he imagined, and several times he couldn't reach the bottom, so he had to hold onto the body of the three-legged frog and tread on the water.

  The spotlight's beam didn't penetrate the entire water bottom, and as it rose, the water splashed upwards, making it impossible to see clearly. It seemed that my understanding of this body of water was still a bit off earlier. The surrounding areas were indeed getting shallower towards the center, but after the bones disappeared, the water suddenly deepened again. It seemed that the water volume here wouldn't be small in the past, at least for some time, to form such underwater terrain.

  He put all the things on his body together, tied up the opening of the qiankun bag again to ensure that it wouldn't come loose, and then took a deep breath before diving into the water. Because the current here was from bottom to top, and humans naturally had buoyancy, every time he dove down less than two meters, he couldn't continue, and the deeper he went, the greater the buoyancy felt, after repeated attempts, he became exhausted and gave up.

  Looking around, apart from the piles of bones, there were only small pebbles, not even a large stone that could be used to press down on. As for his own judgment about the depression in the center of the round plate, Zha Wenbin always felt that if he didn't take a look, it would be a pity. Just as he was panting with the three-legged toad, he suddenly thought, this guy is good at swimming, I wonder if it can bring itself down. Swimming to the front of the three-legged toad, Zha Wenbin gently stroked its nose and said: "Buddy, can you take me down to the bottom of the water to try?"

  Before he could react, the three-legged toad's body sank, with more than half of its body already submerged in the water. Cha Wenbin saw an opportunity and flipped over, tightly holding onto its neck. The three-legged toad's powerful legs kicked out, instantly parting the water on both sides as it continued to dive downwards.

  At first, due to the impurities and air bubbles in the water, Zhang Wenbin couldn't even open his eyes. He only felt the surrounding water temperature rising up his body, and the buoyancy was getting stronger and stronger, so he had to hold on to the tripod tightly to continue. When he felt a humming sound in his ears, it meant that the depth here had reached the maximum value that a person could bear without protection, and he tried to open his eyes again.

  With the light of the spotlight, they seemed to have reached the bottom of the water. The warm skin told him that the temperature here was at least around thirty degrees. It's unclear whether they stopped moving or the water quality here is better, but he can now see things within a range of three meters.

  The eyes of the three-legged frog shone with a green light at the bottom of the water, and it was this thread of light that gave him a temporary sense of security. Looking down, his feet seemed to be on a relatively flat piece of land. From the swirling heat waves rising up from the water, the outlet hole didn't seem as big as he had imagined, so he began to search around.

  About a meter away from the three-legged toad on the ground, there were several smooth black objects. The water outlet should be over there. He urged the three-legged toad to move towards that direction, but it didn't budge after several attempts. Since they couldn't communicate verbally underwater, Zhang Wenbin could only try his best to touch its nose and point to the location one meter away. The three-legged toad seemed reluctant, but finally moved forward. However, this movement caused a change in the underwater environment, stirring up various sediment and temporarily obscuring his vision.

  The deeper the water, the more oxygen is consumed. Now that he has been underwater for almost two minutes, he feels like he can't hold on any longer. He had no choice but to clamp his legs around the frog's belly, and to his surprise, the frog cooperated, using its powerful hind legs to propel them towards the water surface.

  Before leaving, taking this opportunity, Cha Wenbin finally saw clearly that under the water, there was a Bagua diagram, with two fish made of black and white stones representing yin and yang. At the position he had seen earlier, there was a face-basin-sized outlet, and in the blurry line of sight, it seemed that where the frog had stayed earlier, there was another hole.

  In the future, he had time to observe that the three-legged frog had already brought him away from the water bottom and floated out of the water surface, taking a big breath of fresh air. Cha Wenbin didn't come back to himself for a while, and in his mind, it seemed that after seeing the hole later and the first hole he saw, there was still something strip-shaped left, but what exactly it was, could no longer be seen clearly.

  Severe hunger and physical exhaustion were the biggest problems he was facing now, after all this turmoil, even if Zhang Wenbin had better energy, seven points would have gone. He lay on the back of a toad for a while before barely recovering a bit. The Bagua diagram in his mind looked very neat, with the yin and yang realms clearly distinguishable. He told himself to take one last look, no matter what the result was, he would immediately find another way out.

  Sticking close to San Zu Chan's head, Zha Wenbin said softly: "Buddy, let's go down once and you'll take me to the point where we just came up, okay?"

  "Glug", Sanzu Chanyan dove down again, this time faster than before. When he felt he had reached the bottom, Zha Wenbin started searching again.

  Sure, here is the translation:

  As expected, next to him was a rectangular object that had been placed there. In terms of size and shape, it really did resemble a coffin, except that the material looked more like stone. But what got him even more excited was that after a flurry of random groping with his hands, he found an indentation on the back of the long stone slab, which gave him a natural reaction, or rather, an involuntary one.

  Cha Wenbin under the water, once again took out the sun wheel from the Qiankun bag, without any warning, without any gesture, he put the sun wheel in his hand into that recess.

  A few centimeters away from the recess, the bronze wheel Buddha was sucked into the recess on the stone as if it were a magnet. With a "whoosh" sound, it detached from Zhang Wenbin's hand and stuck to the recess with a "slap" sound. The bronze wheel Buddha was connected to the recess like a magnet, and the two merged seamlessly, as if the entire long stone had finally restored its original appearance!

  It wasn't until the bronze wheel slipped out of his hands that Cha Wenbin came back to reality, and just as he was about to reach out to grab it, he felt the bronze wheel being firmly fixed onto the long stone, and the changes awaiting him were far from over...

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