Qianyu and Conan walked out of the toilet lightly, only to see a dusty corridor outside.

"This should be the source of silica dust." Conan whispered.

"Hmm..." Qianyu responded and continued walking. The two of them followed the sound of the TV and walked in the direction of someone.

"It should be this room," the two came to a room, and Conan said, looking at the white light reflected in the window. "You open the door later, and I will take action directly after opening the door."

"Okay." Qianyu nodded and walked to the door.

Taking a deep breath, Qianyu put his hand on the door handle and was about to open the door, but Conan grabbed his wrist.

"Wait!" Although Conan only spoke with his exhaled breath and did not vibrate his vocal cords, his hoarse expression said everything. "Look to your left!"

"??" Qianyu thought there was someone on the left, so she turned around and realized that there were only a lot of cube lunch boxes on the left. She was about to ask Conan what happened, but suddenly realized something was wrong.

Isn’t the number of these lunch boxes too much???

The four kidnapping cases have lasted for a total of 10 days, which means 20 to 40 boxes of lunch per person.

But the lunch box here should be a rectangle less than 5*5*4, which is about 95 boxes. This number means that there may be 2 to 5 people on the other side. (2 people have stayed here for many days)

"How many people?" Qianyu mouthed.

"3," Conan gestured, then walked to the lunch boxes and clicked on three of them.

The types of these three boxes of pork bento, beef bento, and tofu bento are different, but the quantities are basically in the same order of magnitude. Qianyu took a cursory glance and saw that there were only these three types of bento boxes in the top layer of more than 20 boxes.

So, Qianyu understood what Conan meant - when the diet is not interfered with, a person's taste will remain relatively stable. In other words, a person is unlikely to eat a variety of bentos. Since the quantities of the three bentos are roughly the same

, which means that the number of people should be a multiple of 3. (Otherwise, the top 23 boxes of bento should have a bento that exceeds 1o boxes, instead of 887 like now)

"What should I do?" Qian Yu whispered.

"Go out first." Conan said on his lips.

"It should be them," Qianyu asked with a frown after escaping from the small window. "But what should we do? It's difficult for the police to attack in this kind of terrain. It would be terrible if they become hostages."

"puppy9," Conan did not answer directly, but said one word. "Do you still have an impression?"

"Those bento signs just now, are they the name of the bento shop?"

"Puppy9, barbecue, the name doesn't make sense, right?" (puppy9's pronunciation is papicue, which is similar to barbecue, and barbecue means barbecue) Conan smiled and asked Conan to follow him.

"So you're going to wait and see?" Qianyu also smiled.

"Yes, if you can't attack it, let them come out."

...

At five o'clock in the afternoon, a man wearing a hoodie entered a barbecue restaurant called "puppy9".

"Boss, it's still the same." The man waved to indicate the store owner's presence.

"Okay, one pork bento, one beef bento, and one tofu bento, the total is 79o yen. The shop owner diligently handed a packed bag to the man."

"Oh," the man smiled. "It's already packed."

"Although you may not order these for breakfast and lunch, as long as it is dinner every day, you must come here to order, and you must order all three. Of course I have to be prepared." The shop owner smiled honestly.

"Oh, that's right." The man threw a Natsume Soseki card to the boss. "Then I'm leaving."

"Okay, walk slowly."

As the man left with the lunch box, two children eating rice balls in the store looked at each other and both smiled.

...

Fifty minutes later, there was a room with a large number of lunch boxes outside the door.

"Police!" With a loud shout, several police officers opened the door and forced their way in. They saw two men lying crookedly on the ground, sleeping soundly. There was an empty lunch box next to them.

When Qianyu and Conan came to this room and saw the two men who were handcuffed, Qianyu sneered. "Now, are you on the right track?"

When Chiba and Conan learned about the kidnappers' favorite bentos, everything became much easier. They asked for a permit from the Megure Police Department, bought a box of sleeping pills from the nearby pharmacy, and mixed them into the ingredients for cooking the bentos.

From the base materials, three boxes of hypnotic bento boxes were made, then packed and handed over to the kidnappers who came to buy the bento boxes. As long as they ate these bento boxes, they would all lie down and become unconscious in a few dozen minutes.

"No," Conan's face suddenly changed from being proud to extremely ugly. "Look, there!"

Looking in the direction Conan pointed, Qianyu suddenly saw a complete tofu bento!

Qianyu's face instantly turned extremely pale. "Go find Ayumi!" Qianyu's voice had completely changed its tone. (If there is one tofu bento left, it means that one person has not taken sleeping pills, so he will die when the police enter the factory.

The police may have appeared, it is entirely possible to take Ayumi out of here and take revenge)

Looking around this room, apart from the iron door that had just been breached, there was only one iron door that was locked. If Ayumi was held by three kidnappers, she would most likely be held here.

"Bumi!" Qianyu came to the locked iron door, pulled the tip of the traceless umbrella with his hand, and pulled out a sharp cone from the tip of the umbrella that was originally smooth on the far side. Qianyu stepped back,

Then he took a few steps and stabbed the iron door hard with the sharp awl.

The sharp cone left a dent in the iron door, but could not move any further - the sharp cone was made of iron birch and was much harder than the iron door, but Qianyu's own strength was not enough to pierce the iron door.

"Tch!" Qianyu cursed secretly, but heard Conan's voice. "Qianyu, get out of the way."

Qianyu immediately took a few steps to the side, and saw Conan press a few times on his shoes, and then throw a thermos bottle on the coffee table in the room into the air. When the thermos bottle dropped to half of Conan's height, Conan's right foot

With a volley, he kicked out the thermos bottle. With a loud noise, the thermos bottle smashed a big hole in the iron door.

"Ayumei, are you there?" Qianyu glanced at the big hole and found that the iron door was made of pure metal and was two to three centimeters thick.

"Qian...Qianyu?" A weak voice came into Qianyu's ears, it was Ayumi's voice!

Qianyu reached in, groped for the lock, and then opened the door. Inside the door was a small room, and Ayumi was curled up in the corner, looking at Qianyu.

"It's okay..." Qianyu raised the corner of his mouth, but he lost all strength in an instant and collapsed on the ground. His eyes instantly turned black, and then a large field of gold stars appeared. Although Qianyu himself sat motionless on the ground, he felt as if he was being swept away.

Entering the whirlpool, the world spins.

"Qianyu?" Conan was startled and quickly came to Qianyu's side. "Are you okay?"

"It's okay..." Although Qianyu temporarily lost his vision and sense of direction, his consciousness was still very clear. "You don't care what I do, you go and see Ayumi!"

When the blackness in front of Qianyu's eyes disappeared and her vision was restored, Conan had already helped Ayumi up.

"The third kidnapper may have escaped on his own." Conan said when he saw Qianyu standing up holding on to the wall.
Chapter completed!