Slag followed him into the bedroom, and the old man turned off the lights, found a chaise longue and sat down, and pointed to the kang to indicate that it was time to go and see what had been left. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Slag didn't expect until that day that the kang where he had been sleeping since he was a child was the entrance to the secret passage of the family's hidden treasures, and the old man had been hiding this secret quietly for so many years, even if his son didn't know it, this city was simply unfathomable.

He looked at the kang blankly, he couldn't see any clues at all, in his impression, when he was a child, he ran and jumped on it, and he didn't feel anything abnormal, and he knew the structure of the kang very well, the top layer of bricks was paved, and the bottom was paved with loess, and then there was the whole bluestone slab, and the bluestone slab was built into rows of passages with mud bricks.

The front end connects the position of the kang head with the stove in the living room, and the rear end of the kang is slightly connected with the fire wall, burying the fire in the living room for cooking in winter, and the heat enters the channel, and part of it gradually heats the bluestone slab and loess above, and part of it flows into the fire wall, the whole room is hot, and sleeping on the kang is even more enjoyable.

With such a structure, the most convenient way to make the entrance must be the side, which saves time and effort, and does not need to dig up layer by layer from above. So, slag squatted down and carefully studied the side of the kang, the kang head of the hometown in Hebei is generally 80 cm high, this height can do a lot of articles, as long as it is wide enough, it is easy for people to drill into it.

If the old man sets the entrance of the dark passage on the side of the kang, in order to make it easier for people to get in, there will inevitably be space inside, and there must be a part of the brick layout that is completely different. If so, there is definitely a difference in the reflected sound. So, he lay down, closed his eyes and gently knocked on the kang wall, and the person's eyesight in the dark weakened, so the sensitivity of hearing and touch would increase several times in an instant.

However, no matter how the slag changes the strength and angle, it feels like all the sounds and touches are exactly the same, and there is no abnormality at all, does this mean that the structure inside is exactly the same? He took a flashlight and carefully studied it on the kang wall, hoping to see any gaps or changes in texture, but there was no difference between the mud bricks on the kang wall.

He looked back at the old man sitting in the darkness and shook his head helplessly.

"Organs, pay attention to three principles, ingenuity, simplicity, neatness, organs are actually the use of natural forces to the extreme subtle means, but, no matter how ingenious it is, there are also rules to follow, as the offensive and defensive sides, in fact, the final competition is experience, analysis and patience."

"The so-called 'skill' must be able to move a thousand catties in four or two, and the large organs in the tomb often have extremely small joints, because touching the mechanism is the most important. And 'Jane' is a test of the construction ability of the mechanism producer, and only the simplest structure in this world can last the most. A mechanism system, if there are too many joints, must need a large number of auxiliary devices, which increases the risk of failure, once a joint has a problem, then the whole plate is lost, the real master, can be as simple as only a few joints in the huge system, it is enough to make people trapped. After all, a mechanism is added out of thin air, and there is an additional structure on the original system, and this structure has changed the original consistency no matter how it is concealed, so you will just think of percussion and distinguishing lines. This requires a method that can be used to create a high degree of unity between the increased structure and the original system when designing the mechanism. ”

"Except for the traps in the tombs, they are generally not made dead, that is, they are meant to be used repeatedly, and at the same time, over time, the people who make the traps will forget the details, so they will make up some riddles to hide the key issues inside. It's not just about protecting yourself, it's about protecting your companions, and the most convenient setting is to confuse the riddle with the decorations around the trap, so as to avoid leaking it to outsiders when you put it around. ”

As he spoke, the old man got up from the recliner and lit a candle, walked straight to the door of the bedroom, raised the candle and faced the Buddhist shrine on the wall, there was a demon mirror in the Buddhist altar that was inclined to the door, and suddenly the mirror reflected the candlelight to the ground, although it was very faint, but it was still easy to detect in the dark room.

The slag was marked in the place where the candlelight was reflected, and the old man gave the slag a small shovel and signaled that he could dig.

The work of digging the soil is not difficult for the slag, and the three times five divided by two were dug up on the side of the kang, and gradually, when digging to an arm's length, a mud brick was obviously broken into two.

The old man looked at it, and told him to continue digging along the edge of the kang, and he closed his mind on the chaise long, until when the slag was an arm's length when he saw a mud brick broken in two.

The old man walked over, shone a flashlight, nodded, threw a bottle of vinegar to the slag, and asked him to start with the first broken brick and smear it on the cracks of the mud bricks.

"It's a trick to make this mud brick look the same as the rest of the parts. It's just that the materials used are different from those of other bricks, and our ancients had the wisdom to use rice soup, lime, sediment, bone glue and other mixtures to make binders, which are more powerful than the current cement after hardening. However, if something is missing, the viscosity will be greatly reduced, and vinegar is acid, which can destroy the raw materials such as rice soup the most. ”

The old man asked the slag to take out the half-cut brick first, and then gave him an iron rod to stretch into the gap, the slag leaned sideways and slowly probed inside with the stick in one hand, obviously felt that it had touched some kind of iron tool, so he moved on the iron tool, suddenly, the stick stretched into an obvious groove, from the depth of the entry, about a palm deep, he moved the remaining part of the outside, felt a hard pull, and the inside began to move hard.

At this time, the old man asked him to take out all the loose mud bricks, which exposed the soil under the fire, and shone it with a flashlight, just like cut tofu, which looked like a whole.

The slag was already eager to pull the stick, but the old man stopped him with a smile and told him to continue to observe the mud bricks that were not loosened with a flashlight.

I really don't know if I don't look carefully, there is a small round hole in the crack of a mud brick, just like a hole made by a mole cricket, which is too accustomed in the countryside, and the hole of these small creatures is not small, but it is strong and neat inside.

Is this part of the apparatus again?

Just as he was thinking, the old man handed over a chopstick, and asked him to put his ear against the mud brick to poke the square part of the chopsticks into it, and the chopsticks passed through smoothly under the regulations of the hole and touched a hole.

The slag turned the chopsticks with a lot of force, and it felt like it was in a movable position, and there was obviously a spring in it.

"Push the chopsticks in and turn them at an angle, like twisting a key, and the joint inside will be fixed against the spring. Well, it's time to open the door! ”

Slag excitedly pulled the iron rod, he felt very relaxed, as if there was a pulley, and it was easy to use the iron rod to carry the device inside. And it is accompanied by a burst of mechanical bites.

When the iron rod was pulled to the broken brick at the other end, the whole clod of soil in front of him fell down, and a black hole appeared in front of him, which should be the entrance to the secret passage.

Slag carefully estimated the height, and felt that he could just jump off, so he looked back at the old man.

"It's safe now, the killing mechanism has been dismantled!"

It is a knife-shaped iron plate embedded in the pulley track, the handle part is used to connect the stick, and the blade part bears the whole piece of soil above, and the soil is pre-made, but the exposed part is covered with mud and sand, and the gap is filled with common soil materials, that is, straw poles, which play a certain role in friction.

At the same time, the handle part of the stick connection extends down to a façade iron plate hidden in the soil, the end has a serration, the serration is connected with a fixed gear, the lower part of the gear is a hollow iron pipe with holes, which is sleeved with a thin iron pipe with holes in it, there is a scissor-shaped folding between the holes, there is a spring in the middle, and the two ends are a pair of protrusions, which are used to insert between the two iron pipes to play the role of connection and fixation, a bit similar to the telescopic rod of an umbrella, once the folding place is pressed and held by external force, the bulge is retracted, and once it is released, it is re-ejected and fixed.

The hole inserted into the chopsticks is on the thin iron pipe at the lower part of the seam, there is a small round tube that can be rotated between the hole and the scissor-shaped fold, one end is inserted into the chopsticks, and there is a prominent arc with a groove at one end.

But if this link is missed, the upper and lower iron pipes are still connected together, and the lower one is fixed with a high-strength wire rope made of the soft skin of the wire snake, the wire rope is wound in a tight state, and the other end is divided into two strands through the splitter, which are respectively connected to the two strong crossbows arranged at the entrance of the dark passage, one towards the entrance, and one towards the bottom of the dark passage.

As soon as the upper handle is partially moved, the serrations of the side plate rotate with the gears, which in turn turn to tighten the rope, which pulls the hilt of the crossbow backwards.

The reason why the old man stopped the slag from jumping off was because where he landed vertically, it was actually a camouflage covered with thin soil on the paper, and there was actually a pit covered with short stingers underneath. The whole pit shape is half an inverted trapezoid, and the inclined plane is paved with a smooth bluestone slab, and there is no force at all. It's just that the dark tunnel shaft is made very narrow, and the bluestone slab can't be seen from above at all, so I just think it's flat ground.

The stinger is attached to an iron plate, but not the whole plate, near the edge of the crossbow is about the size of a palm, there is a spring fixed under the iron plate, as the person or thing falls, the iron plate is pressed down, and the end without the stinger is connected to another line of rope, which is divided into two strands straight up from the dirt wall, one of which passes through the small clasp, and then the small clasp is embedded in the earthen wall, so that the straight line becomes two different angles of inclination, and the small angle is connected to the strong crossbow in the direction of the upper entrance, The other is connected to the crossbow at a large angle to the stinger pit, and the trigger of the crossbow has been changed from a curved backward to a convex pull-down.

In this way, the whole mechanism becomes the first weapon against thieves.

If the thief starts digging from the kang, when he digs the soil at the bottom of the pit, he will inevitably destroy the whole piece, and it is difficult to find the abnormality in it, and he may feel that there is nothing special about it, so he will stop there.

If you insist on digging the entrance plate, it will be easily pushed away in the direction, at this time the whole mechanism has been activated, the strong crossbow is wound, and the thief sees that the bottom of the dark passage is normal, once he jumps, his feet are pierced by the stinger, at this time, the first crossbow is launched against the strong crossbow at the entrance, and shoots the accomplices who stay on it.

And the small buckle is also stressed away from the wall, and the second strand of the rope begins to be in a state of preparation, because it is a short thorn, the thief will not be killed on the spot, but will only struggle in pain, and the more he struggles, the more unstable the rope is, and if the second strong crossbow is touched at this time, he will be shot directly.

Or because the strength is not enough to trigger, the thief will not give up and wait for death at the bottom of the pit, he will inevitably break free, when he finds that there is no thorn on the edge of the other side, he will inevitably bend down to support himself and borrow strength, at this time, there is an almost whole body of strength under pressure, pull violently, the strong crossbow is activated, and he will definitely die.

And if the thief digs from the side of the kang, dismantles all the mud bricks and finds the mechanism, and opens the iron plate with a stick, but misses the small hole, and does not twist and remove the convex connected device, once the whole clod of earth falls and stimulates the strong crossbow in the sky, the thief must think that the mechanism has been released, but who knows that the second strong crossbow is already on standby, when he jumps, waiting for him is still death.