An hour later, in the restaurant on the first floor, everyone was sitting at the table.

"Uncle Hirata," Chiba asked. "Can you tell us what the hell is going on? Whether it's the design of that elevator that borders on a killing machine, or what happens to you that causes you to fall unconscious. ”

"Okay," Hirata said, taking a sip of hot water. "I'll tell you everything."

"First of all, it's the elevator, I don't know what the flaw is, but I know that the elevator does have a flaw. And this flaw was deliberately designed by the designer. ”

"Huh?" Thousand Feathers were surprised. "Therefore ... Deliberately designed like this? ”

"Hmm," Hirata nodded helplessly. "I'm ashamed to say that the person who built this building was my father. At that time, it was his close friend, Mr. Kumamoto, who built this Yiyu building for him. At that time, Mr. Kumamoto spent all day at the construction site like an overseer in order to determine some architectural details. Then, my father met Mrs. Kumamoto during a visit that he couldn't see the main one, and since my father was single at the time, so—"

"Teacher, will you skip this paragraph?" Kenya asked. "There are children here!"

"Although I don't have to be so shy about Conan and I, but considering efficiency, it doesn't matter too much," Qian Yu said tastelessly. "The three views are not quite right, you can skip it." (Asa also needs to listen to the radio, so she stays in the house with the children in case they accidentally get to the elevator)

"Okay," Hirata said with a slightly awkward smile. "Anyway, Mr. Kumamoto was quite annoyed, so he did some tricks and feet on the elevator. At that time, my father was ashamed, so he did not pursue it. So these elevators stayed. Until about 30 years ago, when my grandfather in a wheelchair died of a heart attack, the elevator was never used again, except for the occasional cleaning after the power was cut off. ”

"Hmm..." Everyone looked at each other, but they didn't expect that it was such a problem left over from history, which almost took three lives.

"That... And why did you fall into a coma? Qian Yu asked.

"Hey!" Hirata's embarrassment was even worse. "I'm sorry... I forgot to take the umbrella off the car, and the doorbell on the carport seemed to be broken, and I didn't respond after pressing it for a long time. So I walked to the door in the rain, and it turned out to be like a cold... ”

Qian Yu covered his face and said that he didn't want to comment.

The beginning of everything comes from an accidental fever, an accidental drugging, an accidental hid in the elevator, an accidental collapse between the elevator and the floor... God of fate, you are indeed a creator.

"So... What about my brother? Shenxue took a sip of the hot water placed in front of her (Conan also had one in front of him) and asked eagerly. My brother hasn't come back yet! ”

Brother? Qianyu raised her eyebrows, and then she reacted, probably the "brother" that Shenxue was referring to was the missing Tatsuya. But... If I remember correctly, this deep snow seems to call Tatsuya "Sibo-san"... Brother and sister have an awkward quarrel? Never mind... Leave that alone, other people's family affairs are not something that outsiders can explain clearly.

"All I saw was the car," Hirata shook his head. "But I looked inside from the back window of the car, which wasn't buried, and Tatsu wasn't in there."

"Excuse me," Qian Yu suddenly thought of a very important question. "Uncle, how big is this landslide?"

"The landslide that buried the car is very steep, and I can't go up, but if you think about the mechanics, I estimate that there should be 300 cubic meters, and if you look down, there are still eight or nine landslides or even broken places on the mountain road."

"If it's 2,500 square meters, then... Chiha's brow furrowed. "Will our food hold up?"

"As long as the excavator clears the road," said Guangwei, who was eventually released. "We can escape, right?"

"Sensei," Kenya asked suddenly. "Are you saying there are only eight or nine cave-ins and breaks?"

"What's wrong?" Hirata nodded and replied.

"But..." Kenya worried. "I've seen more landslides... More, not less. ”

"And then what's worse," Chiba glanced out the window at the thunderstorm that still hadn't subsided. "It's only going to get worse."

"It is said to have been caused by a small-scale coastal tropical depression," Hirata said helplessly. "This, coupled with a fire the other day, and the convection of hot and cold air led to severe thunderstorms in this generation."

"We can't afford to wait, whether it's food reserves or our personal affairs, we can't afford to wait" Qian Yu leaned back in his chair and said coldly. "We need to find a way to get down."

"It's dangerous to go out rashly!" Kenya shook his head and said.

"I'll take a look," Qian Yu got off the table, picked up the traceless umbrella, and prepared to go out. "Brother Kenya, how about coming me to take a look?"

"I'll go!" Kenya hurriedly followed Chiba. "You stay here."

"If I go, you can pull the rope in the back," Thousand Feathers said without looking back. "But if I don't go, brother, who will pull your rope?"

"Do we have a rope?" Kenya was slightly stunned and looked at Hirata Uranium. "Teacher?"

"Didn't you?" Hirata was also very confused. "Kid, do you have a rope?"

"Yes!" Chiba replied. "Brother Kenya, wear a raincoat and come with me."

。。。

"Brother," Qian Yu said as he walked around the villa as he observed the mountain below the platform on the top of the hill where the villa was located. "You can help me pull the rope later, I may need to rappel it down."

"Where's the rope?" Ken is also confused.

"It's right here!" The corners of Chiba's mouth lifted slightly, and she opened a small mechanism on the umbrella bone next to the tip of the umbrella and took out a rope head. Qian Yu came to a nearby tree again, tried to push it, and found that the tree was very strong, so he wrapped the rope around the tree, and pressed a button next to the mechanism, and the rope immediately stretched out an eight-headed claw to fix the rope.

"This... This is! Kenya was surprised.

"That's the mechanism inside the umbrella," Chiba shrugged. "Not worth mentioning. Brother, you just need to watch the tree and the rope on it. ”

"What kind of structure is inside your umbrella?" Kenya then turned his attention to the rope. "This rope is already so long, can you still go down?"

"Is it long?" Chiba smiled. "I don't think so. In short, this is a moment to witness a miracle~"

Under Kenya's astonished gaze, Chiba pulled out a fixture at the end of the handle of the umbrella, fastened it to his hand, and jumped down to the platform.

The length of the rope is far beyond Kenya's imagination.

The rope is only 1 millimeter in diameter, but it is constructed using mesh graphene - in order to complete such a frightening project, Qian Yu has a special machine for weaving mesh graphene rope in his home.

Reticulated graphene, tensile strength 4500MPa, density 0.4 grams per cubic centimeter. (This material does exist in reality, but it was only developed by the MIT research team in January '17) Even if the diameter of the rope is only one millimeter, it can withstand 300 kilograms of tensile force. The reason why the Traceless umbrella has 12 umbrella bones (although only 4 of them are used to hold the graphene rope, and the other 8 are used to hold other things), and each umbrella bone has a diameter of 1 cm to accommodate these ropes. The rational layout and the loose strand design of the rope itself also allow each umbrella bone to hold up to 80 pieces of rope, and four umbrella bones to hold more than 200 meters of rope.

"The collapse can be serious enough... Chiba clutched her umbrella and descended under the terrain of the extremely bad environment. "In this case, I'm afraid it will take a long time to repair the road... What the hell is going on—ah!! ”

The 60-degree dirt slope that Qian Yu was stepping on suddenly collapsed, and Qian Yu was caught off guard and slid down to the dirt road nearly ten meters below.

"Cut!" Chiba glanced at his pants at his knees, which were soiled by the wet mud, and continued to explore his way down with a slight displeasure.

Just as Chiba was crossing the almost abandoned winding mountain road, he suddenly saw something that he was very concerned about.

A car buried in a mudslide with only the trunk left. Judging from the model, it is the car that Tatsuya and Ken used when they also sent everyone to the mountain. However, this is really strange, since the trunk is exposed outside the mudslide, then Tatsuya can escape from the trunk. Although the mountains here have been damaged by thunderstorms, it is relatively easy for young people to climb slowly and upwards.

There is no one alive, no corpse dead, where are you, Spodaye?

At this moment, a pillar of light appeared in the distance, and the alarm bell pierced the rain curtain and reached Qianyu's ears.

。。。

Everything has to start with Qianyu's telegram.

When a radio amateur received this unusually powerful telegram, he was immediately frightened by the four SOSs and reported it to the police. The police did not have a radio station strong enough to communicate with this station, so they could only send someone to the mountain to check it out for themselves.

On the road down the mountain, the police found a young man lying on the ground unconscious, judging from the direction of the fall, he should have just descended the mountain, so frightened that they hurriedly called an ambulance and a bus to transport the trapped people.

The relative elevation of the whole mountain is not high, and the 200-meter rope of the thousand feathers is enough to reach the foot of the mountain directly, and the police can also climb up this rope and lead everyone one by one.

Stay away from this mountain that traps everyone, away from this Yiyu Building that suffocates everyone and hovers over the souls.