Han Daring and the others were surprised to see the wall of the dead-end flickering and flickering, and under the floating light and clouds, it actually showed a zigzag and flying shape.

Among the four people, Zhang Biao is not small but the most courageous, seeing this situation, his heart is a little weak, and he involuntarily retreats.

Fan Tong was not very bold, thinking that he had seen a ghost in broad daylight, and blurted out:

"Ghost ...... Ghosts...... It's a ghost hitting the wall! ”

When Zhang Biao heard that there was a ghost, the last bit of courage in his heart was lost, and he turned around and wanted to run back.

Wang Zhen doesn't look at the thin race skeleton, but his courage is much greater than these two. He grabbed Zhang Biao, signaled him not to act rashly, and then looked at Han Da'er. I saw that at this time, Han Da'er didn't say a word, and had already walked step by step, towards the end of the dead end, the wall that appeared from time to time. Although Hua Si'er was a little timid, she also followed behind Han Da'er from a distance.

When Han Daring saw the strange scene just now, he suddenly remembered what Mei Ruohong said before he came.

At that time, Mei Ruohong told a story about his overseas experience, mentioning a kind of painting that uses color to create the illusion of light and shadow. You can paint on a wall and use illusion to create a street scene out of thin air, so Han Daring thought about whether there would be villains who also use illusions to create traps!

At this time, the sky was bright, and the cloudy clouds that had been shading just now were still drifting away. The wall at the end of the alley reappeared. Han Daring slowed down, touched the wall of the alley and walked forward, the tentacles were all cold brick walls, the bricks on the wall were stacked, the brick joints were clear, Hua Si'er inadvertently swept the afterglow, "Huh", it was this sound that attracted Han Daring's attention, he looked at the brick walls on both sides, and suddenly made an unexpected discovery.

The brick wall he was holding on to was touched with his hands, and although the bricks were still stacked horizontally and vertically, there were brick joints filled with muddy water between the bricks and the bricks. But these look very different.

The horizontal and vertical arrangement of bricks and the plastered wall cracks abruptly narrow towards the center. Visually and visually and visually are no longer on the same parallel at all.

At this time, Han Daring realized that someone had painted on the brick wall in the middle of the alley, and on the brick walls on the left and right, the effect of stacking bricks was drawn, but it was not painted in the original stacking direction of the bricks, but gradually narrowed the brick wall, and each brick was like a trapezoidal shape placed horizontally. Although the brick wall has not changed, visually, the sense of depth and the blind spots of near and far away make this alley much longer than the original!

At this time, Fan Tong and several people behind him let out an exclamation, Han Da'er and Hua Si'er heard this, and immediately turned around, but saw the three people in the distance behind them, revealing unbelievable eyes, Fan Tong pointed at Han Da'er's feet with his finger!

Han Daring looked down and saw that the brick and stone pavement under his feet had also been painted with oil paint. The drawing stretches forward, and where the ground meets the walls on both sides, brick walls are also painted and different shades of color are used.

Han Da'er's heart moved, and he took out the ghost ball from his pocket and put it at his feet. As soon as the ghost ball stood on the ground, it rolled in the direction of Fan Tong and the others. Han Daring took a few quick steps to pick up the ghost ball and put it back in his pocket.

At this time, he finally understood the secret of the disappearance of the wall of this alley just now!

The alley of Jiudaowaner was originally surrounded by high and middle depressions. The pavement of this dead-end road originally stretched diagonally upward. The few of them were standing at the lowest point of the alley.

Someone used oil paint to redraw the appearance of the walls and pavement on both sides of the middle of the alley. At the highest point of the slope of the alley, it becomes the wall of a dead end. As long as you press the shade and paint on it, you can draw the effect of a high ceiling on the rain building that was originally inlaid in the middle of the courtyard wall.

The brick wall paintings on the ground on the slope of the alley will give people the illusion that they are brick walls at the end of a dead end from a distance. The use of color in all the paintings is so good that passers-by look at it as if there is real light and shadow, turning the original slope into a dead end.

Just now, there were occasional clouds drifting through to obscure the skylight, which made the original color of the brick wall and the painting form a sense of incongruity, making people feel that the brick wall of the dead end seems to have become transparent, and it disappears from time to time. The cloud shadow floating to block the light of the ground slope is of course completely different from the feeling of covering a wall, so there is the feeling that the cloud shadow is floating upward.

Han Da'er had stepped on it just now, and the brick wall painted on the road surface was painted far and small, and from a distance, it was a brick wall of the same size. Those few people saw Han Daring take a few steps forward, and he actually stood on the brick wall of the façade, which was an erroneous and uncoordinated signal that was visually transmitted to the brain.

In fact, what people see is not determined by the eyes, but by the brain. The painter used people's inherent thinking and visual errors to create a wall out of thin air on this slope.

Han Daring understood the strangeness and was in high spirits. With Fan Tong and a few people, he immediately walked up the slope and walked towards the depths of the alley.

Wang Zhen's eyes were straight, and he felt unbelievable along the brick walls drawn around. Fan Tong and Zhang Biao still muttered a little in their hearts, and they didn't look closely, and followed Han Da'er forward.

In fact, it is right not to look closely, not to pay attention to the surrounding environment, but not to be disturbed by these optical illusions.

Walking up to the highest point of the slope, I found that in fact, the courtyard walls of the alleys on both sides are also built with the undulating terrain, because the brick walls of the surrounding alleys are exactly the same, there is no painting on the wall that creates an illusion, in fact, I don't think this alley has anything special.

Walking from the low to the high, there are still a few ups and downs in the alley, but there are no forks in the alley, so it seems very long.

Han Daring knew that this artificially arranged trap painting was just to make people feel that this was a dead end, so there must be a secret hidden here. Maybe there were other ambushes ahead, so a few people walked very slowly, cautiously, and vigilantly.

After walking a short distance, Han Daring stepped on something under his feet, which felt like a thick cloth, he bent down to pick it up and looked at it, it turned out to be a broken sack piece. He remembered that last night, a sack piece fell on Hua Si'er's shoulder, and he was so frightened that he thought there was a ghost!

He handed the sack piece to Hua Si'er, and when Hua Si'er saw the sack piece, he hurriedly said:

"We were here last night!"

Han Daring thought that it was dark last night, and he didn't have fire on his body, so he was not affected by the visual deception, and kept touching the brick wall to move forward, so he came here. In the darkness, it was difficult to walk, and I didn't feel any undulations. It wasn't until I stepped on this sack piece that I realized that I had been here last night.

Thinking of this, Han Da'er flew up the wall, and after stepping on the wall a few times, he had already jumped onto the high wall. After going up the wall, he went to the upper room again, and the movements were coherent and fast, as if he was flowing through the clouds.

Zhang Biao, Wang Zhen and Fan Tong below were all dumbfounded.

Zhang Biao and Wang Zhen knew that Han Dada'er had kung fu under his hands and beat people very hard, but they didn't know that he still had such skills. Wang Zhen couldn't help but exclaim:

"Oops! This Nima is skilled, not a policeman, being a snitch is enough, I don't think it's much worse than Yanzi Li! ”

Although Fan Tong had handled a case in Xiaoxiguan with Han Daring, he knew that he was skilled, but he didn't expect Han Daring to have the ability to jump over the ridge, so he was also surprised! Although Hua Si'er already knew that Han Dada'er had this ability last night, it was pitch black yesterday and he couldn't see it really, but now that he saw the live performance, he knew that someone could really be as light as a swallow and jump over the ridge like walking on the ground, not that Mr. Storyteller made it up out of thin air.

Han Daring stood on the roof of the house, looking at the surrounding terrain, it was still the same as yesterday, the surrounding circle was the highest, quite blocking the view. You can only see the skylight on the periphery of this alley, but you can't see the streetscape buildings. He looked closely at the courtyards of the surrounding houses, and sure enough, many of them were still vacant.

There was also a house in the distance, with roofs connected to each other, and there was a large one, and it seemed strange that there was no courtyard. He memorized the direction of the house, and then jumped off the roof.

He was going to check the location of the light that appeared last night, so he nodded to everyone, motioned for the others to be quiet, and then walked towards the corner of the alley ahead. That's where he and Hua Si'er found the bright light in the alley last night.

Han Daring's ups and downs just now, the skills he showed had already convinced Zhang Biao, Wang Zhen and others on the spot, and it wasn't until Han Daring walked to the fork in the alley that these people came back to their senses.

At the end of the alley is a T-shaped opening, the fork on the left hand side is a deep alley, and the fork on the right hand side is a dead end not far away.

Han Daring didn't care about the dead end, whether it would be another visual deception, and instead walked towards the height and direction of the light cluster he saw last night.

Walking to the base of the wall, there was nothing bare on the wall. He looked up along the wall and saw a nail painted in the color of the wall. He straightened his arm upwards and gestured to see that the nail was more than a foot above the reach of his own hand.

If you look closely at the nail, you can see that the nail head is tied to a very thin steel wire. Han Daring took out the red tassel knife and pressed the steel wire with the blade, feeling that the steel wire was tied very tightly, and the other end of the steel wire, along the position of the nail, stretched along the wall to the far side of the alley. It's like hanging a long rope on the wall of an alley.

Han Daring asked a few people not to move here, and walked forward with this thin steel wire by himself. He knew that there was a huge pit not far ahead, so he was careful with every step, first testing with his toes, and only when he saw that the ground was empty, he stretched out his feet and stepped on them.

After walking a short distance, I saw that three feet ahead, the steel wire on the wall had reached the end. Han Daring thought to herself, someone must have hung something on this wire last night, maybe it was a white paper lantern or something. In the darkness, from a distance, it looks like a white light, so there is an orange core inside, which must be the fire candle in the lantern.

The copper wire on the wall must not be straight, but diagonally downward in the distance. As long as the person entering the alley touches the thin line, the lantern will slide from the high end of the copper wire to the low end, so that it is like a ghost fire, carrying people and leading them into the pit.

Looking ahead, the ground is flat with masonry, and it is now a sunny day, and it is estimated that the pit last night has been covered with camouflage. At night, it is dark and there is no need to disguise, so hang a lantern, open the pit, and wait for the intruder to fall into the trap, and during the day, instead of hanging a lantern, the ground pit is disguised as an ordinary road surface, even if someone touches it, it will fall into the pit if you are not careful.

Han Daring turned around and walked back, wanting to see the dead end of another fork in the road. But I don't know when Wang Zhen and Zhang Biao have already followed Han Da'er over.

Han Daring was about to walk back, except for Hua Si'er, who knew that there was a pit in front of him and stayed where he was, the others were still walking along the alley.

Seeing this, Han Daring hurriedly spoke to stop him, but who knew that he was a step too late!

Zhang Biao had already stepped on the camouflage on the pit, only to hear a pop, and suddenly smoke and dust rose in front of him, and the ground in the alley collapsed into a big pit in all directions. The pit is one zhang long, and the brick walls on both sides of the alley, the camouflage oil covered on the surface, connects Zhang Biao and slides into the deep pit together.

Zhang Biao's feet were empty, and he hurriedly reached out and grabbed around, finding an object to grab so that his body would not fall, but there was nothing else around him except Wang Zhen.

Wang Zhen saw a deep pit on the ground, and hurriedly retreated, but only to feel that his clothes were grabbed by Zhang Biao, and his body staggered. With his thin body, how could he resist Zhang Biao's grasp. His body immediately tilted forward, and he rolled into the pit with Zhang Biao.

Han Da'er's eyes are fast, and his body is faster. At the moment when the trap was broken, Han Daring had already rushed forward and rushed towards the pit.

Wang Zhen and Zhang Biao just fell into the pit, only to feel that their bodies were tight, and they seemed to be stopped by a force and stopped in mid-air. When I looked up, I found that it was Han Da'er, hanging the stone brick on the edge of the pit with one hand, and grabbing Zhang Biao's belt with one hand.

Han Daring grabbed the edge of the pit with one hand and Zhang Biao with the other, and Wang Zhen only grabbed Zhang Biao. It is equivalent to Han Da'er's weight of three people on one hand. Although Wang Zhen is thin, he is also the weight of a person, plus Zhang Biao's big waist and round waist.

Han Daring is now relying on a breath of mixed vitality, as long as one mouth dissipates this breath, the three of them will immediately fall into the pit. He glanced at Wang Zhen, Wang Zhen is a smart person immediately understood, and hurriedly climbed up along the bodies of Zhang Biao and Han Daring.

Wang Zhen is really a waste, Gu Qiu took a long time to rub on the edge of the pit, but fortunately, Hua Si'er and Fan Tong found that something was wrong, and they were already lying on the edge of the pit to answer and pull Wang Zhen up. Then the three of them lay on the edge of the pit, waiting to pick up Han Daring and Zhang Biao.

Zhang Biao's body was heavy, at the bottom. He and Han Da'er were both tall and strong, and the three people above couldn't pull the two of them at all. Unless Han Daring lets go and throws Zhang Biao down, Henan will get out.

Zhang Biao also saw the current situation, and looked down at him, the pit was pitch black, bottomless, and there seemed to be a sound of water at the bottom of the pit. Zhang Biao was already panicked at this time, and he couldn't care about it, so he begged Han Da'er not to let go.

Han Dada'er is a person who can't be saved when he sees death, he has enough strength to grab Zhang Biao's hand and send it up, Zhang Biao is racing with a dead pig, so frightened that his hands and feet are paralyzed, and he even forgot to raise his hand to grab the hands of a few people on the edge of the pit. It was Fan Tong who grabbed Zhang Biao's neck by the collar, used the strength to feed, and dragged him up angrily.

Han Daring saw that the two of them had been freed, so he was relieved, stretched out his arms and waist, and was about to run up to the mouth of the pit, at this moment, the stone brick he was holding suddenly loosened, he suddenly lost his strength, and his body fell suddenly.

He kicked on the pit wall in a hurry, and his body had already jumped to the other side of the pit wall. He had planned to jump repeatedly on the wall of the pit and jump up to the mouth of the pit. But just now he was hanging on the edge of the pit and grabbing the two of them, and he tried his best to send Zhang Biao up, and now he can't do it in one breath.

As soon as he touched the edge of the pit on the other side, the pit wall suddenly slipped and the muck slid down, and there was no place to borrow at this moment, and the whole person was facing down and planted into the deep pit.

I only heard the sound of "plopping" and the sound of splashing, and let a few people on the edge of the pit shout, but Han Da'er had already disappeared!