Conan: The Mechanic

"Although Heibuchi Village is not a popular tourist spot, it was once a small and well-known resort, where shops and hostels used to be lined up. Kubo Ryokan also has fairly good traffic and considerable income because of this." Kubo Sayuki telling. "But three years ago, the hot spring suddenly stopped gushing... The villagers tried a lot but couldn't get the hot spring back to the village. After the expert diagnosis, the hot spring was naturally exhausted."

"Will the hot springs run out naturally?" Mitsuhiko asked strangely. "I remember, isn't the hot spring formed by the heating of underground magma after ordinary water flows into the ground? How can it be exhausted?"

"If the geothermal heat that heats the hot springs is a limited resource, then it's possible," Chiba replied, seeing that Kubo Sayuki was caught off guard by this question. "For example, the movement of the crust causes the magma to cool down. However, if it is said that it is no longer gushing, there are two possibilities. One is that the passage of the hot spring itself is blocked or directed to other directions due to geographical changes; There are problems with the treatment methods, which lead to the loss of local groundwater not being replenished and eventually being completely depleted.”

"After the hot springs suddenly stopped, the meaning of the existence of hotels in hot spring resorts disappeared," Kubo Sayuki continued sadly. "Every hotel is closed, and until now, only our family is still performing its duties. But even we plan to close this year. After all, there is no hot spring, and no guests will come."

"Suddenly cut off?" Qian Yu was a little surprised when she heard the word. "You mean, the hot spring itself stopped gushing without any signs of depletion?"

"That's right."

"How come..." Qianyu murmured in disbelief. "how can that be???"

"Is there any problem with the 'sudden cut-off'?" Haibara Ai glanced at Qianyu's expression and immediately asked.

"Generally speaking, the depletion of hot spring flow is usually due to crustal movement or depletion of water. Both of these will have obvious precursors..." Qianyu explained. "The former will have precursors such as earthquakes, while the depletion of hot springs caused by the latter must be gradual. Both of these will have very obvious precursors."

"Then there is another possibility," Conan listened to Qianyu's description, and a strange light flashed in his eyes. "A very small-scale crustal change has caused the hot spring to stop flowing, but the probability of this is quite small..."

"Speaking of which, I seem to have a little impression of Heiyuan Village..." Qianyu suddenly seemed to have caught something. After thinking for a long time, she said slowly. "Heiyuan Village seems to be one of the golden mountains that Takeda Shingen focused on mining?"

"Yes, there were the best gold mountains at the time," Conan nodded. "At the same time, this is also the location of Takeda Shingen's secret hot spring."

"It's not just this... There is also the origin of the name Heiyuan Village," Qianyu pouted. "It is said that the name of Heiyuan Village is because the soldiers of Takeda Shingen suddenly carried out a mass execution on the Jinshan miners, and the blood dyed the stream under the Jinshan to the river bank and even the bottom of the river black... "

"Why did they do this?" Ayumi said indignantly. "unacceptable!"

"Oda's troops came over, and the Takeda family couldn't stand it, so they were forced to destroy Jinshan." Conan replied.

"Then why not destroy it together with the hot spring?" Mitsuhiko asked. "The hot spring should be able to be blocked, right?"

"It can't be blocked. After all, the flow of the hot spring should not be too small, and there was no cement used to block Koizumi's eyes at that time." Qianyu shook her head and said. "If you really want to harm Oda's army, there is actually a better way to deal with it, that is to wash the miners' bodies, cut them into pieces, tie iron or gold nuggets, and throw them into the spring. Guarantee that the wounded soldiers of Oda Nobunaga will die one by one when they come to heal their wounds."

"Too ruthless..." Hai Yuanai said with emotion.

"What does this mean?" This time, it was not Mitsuhiko and the others who asked the question, but Conan who was a little surprised. "I remember that corpses can't be soaked in water, otherwise it will pollute the water, but why?"

"Clostridium botulinum, Clostridium botulinum produced by corpses in an anaerobic environment will prevent the cholinergic nerve endings of hot springs from releasing acetylcholine, and thus unable to conduct nerve signaling. This will make the patient's nervous system Destroyed symptoms and eventually died from severe symptoms such as difficulty breathing."

"You really know a lot!" Tadao, who was just watching everyone quietly, exclaimed. "These are all very profound knowledge!"

"Also, Qianyu, your thoughts are really..." Mitsuhiko was obviously a little frightened. "It's amazing..."

"Would you like to visit the hot springs?" Kubo Sayuki thought for a while and asked. "Maybe you can find something more?"

"It's too dark, let's go tomorrow." Qian Yu glanced at the sky that was already dark. "Or if you have a powerful flashlight here, when I didn't say it."

"It's really not safe to go now," Dr. A Li, who was beside him, also discouraged. "It might be a good choice to go again tomorrow morning~www.NovelMTL.com~ Okay!" Kubo Sayuki nodded and said with a smile. "Then go see it tomorrow!"

at this time. . .

"Hello! Is there anyone?" A loud greeting came from the entrance.

"Huh?" Everyone was stunned - at this time, would anyone still come?

"Tadao," Kubo Sayuki told Tadao. "Call Ryozo together to help everyone clean up their rice bowls. (Remember? Everyone is eating, and in the gap between talking, everyone is eating.) I'll go to receive guests."

"Where's the boss?" The voice came again.

"Come here!" Saying that, Kubo Sayuki ran over. "Hello, I'm the proprietress here! Do you two need anything?"

Qianyu thought for a while, put her hands together, and quickly completed the after-dinner etiquette (Go-chiso-samadeshita, which means thanking the broadband users for providing such delicious food), and then quietly touched the hall and peeked at the movement at the entrance.

At the entrance, two sturdy men in adventure attire, one tall and one short, were looking at the hotel lobby with backpacks and nylon fishing rod bags on their backs.

"Come to a room, we want to stay for a few days," said the tall man, taking out his wallet. "How much?"

Before Kubo Sayuki could answer, the tall man placed a stack of Fukuzawa Yukichi (10,000 yen bills) on the front desk. "Don't look for it, these money should be enough for our room expenses these days."

"Interesting..." Qianyu raised her eyebrows.

"Ah...Thank you for your honor..." Kubo Sayyuki was so excited that she was even a little incoherent. "I will prepare the best view for you right away... Of course... Because the hot springs are depleted, the scenery here is not as good as there..."