"It can't be!" Mr. Koenji said categorically - they had just received a letter from the kidnappers, and what good would it do to the kidnappers if the hostages died?

“？” Officer Twilight glanced at Mr. Goenji's determined expression with some surprise, and then exchanged a look with Gregory.

"Excuse me," asked Grigory. "Is Miss Keiko Koenji the only daughter of your family?"

"Yes," Mr. Koenji nodded. "What's wrong?"

"Five months ago, your daughter suffered a serious meniscus injury due to an injury she sustained while playing volleyball. So I underwent a new type of experimental surgery at Yonhua Central Hospital with technology provided by the U.S. and manpower provided by Japan, right? Grigory continued. During that surgery, your daughter was replaced with a titanium meniscus. ”

"How do you know?" Mr. Koenji said in amazement.

"I am the patentee for the new formulation of titanium alloy for the artificial meniscus," Grigory replied. "I also came to Japan to observe the surgery."

"So, what do you want to say?" Mr. Koenji asked again.

"We found this artificial meniscus on that corpse," Grigory replied. "The number on it matches your daughter's."

As he spoke, Grigory pulled out a clear plastic bag from his coat pocket - inside was a supposedly new titanium creation. "This is your daughter's meniscus. Do you still think that the deceased was not Miss Keiko Takaenji? ”

"What......" Mr. Koenji began to doubt his previous thoughts. This ......"

"Hmm-" Gregory said, as if he had noticed something, as he wrote a note and handed it to Officer Twilight. "You can't have received an email from someone claiming to be a kidnapper, and then you got a little toe from your daughter, right?"

"What?" Mr. Koenji was taken aback. "How do you know?"

"The corpse is missing a little toe," Grigory pointed to a trash can not far away. "Considering that there was an envelope that didn't contain the sender, and considering the ...... left on the tabletop"

As he spoke, Gregor shoved his fingernails on the tabletop, causing everyone to see a flesh-colored object on the table, which was a small scrap of skin.

"Keiko is really dead?" After Mr. Koenji confirmed from the information provided by Gregory that Keiko Koenji was really dead, his whole body suddenly became decadent. "How so?"

At this moment, a policeman standing at the door of the entrance suddenly said. "Here are a few letters addressed to 'Tachibana Chiba'! There is also a school bag for small children! ”

"I thought the backpack at the door and the umbrella on the side looked familiar," Grigory pouted. "Do you mind if you let him out and talk to me now?"

"So," Officer Twilight said solemnly. "Mr. Koenji, can you tell us what happened?"

"Okay......" Mr. Takaenji sighed and said slowly. Keiko had disappeared the night before, and she had returned to the house after dinner that night. We found out she was missing because she didn't come downstairs for breakfast the next day. ”

"Is it possible that she snuck out to a party or something?" Officer Twilight asked.

"No!" Mr. Koenji shook his head. "Otherwise, she would have told us and said goodbye to us – she's not a child, and we won't stop her if we tell us."

"Excuse me, can you take us to see Miss Keiko's room?" Grigory demanded.

"Okay."

……

On the second floor, Keiko's room in Koenji.

"There doesn't seem to be any blood here." A police officer with a UV flashlight reported. "You can rule out the possibility of a direct kill here."

"There's no sign of resistance, it looks like it's a hand in his sleep." Grigory looked at the floor-to-ceiling windows. "Wait, there's a balcony here?"

"Yes." Mr. Koenji nodded. "Keiko's room is the best with its own balcony."

"And the fire ladder...... "Gregory pushed open the floor-to-ceiling windows, stepped onto the balcony, and raised an eyebrow.

"Fire ladders have been installed in all bedrooms on the second floor."

"It looks like it's been confirmed how your daughter was taken," Grigory said. "And at least two people join forces."

"Are you sure, Mr. Gregory?" Officer Twilight asked.

"A man with Keiko down," Gregory replied. "And at this point, you need someone to stabilize the fire escape."

"Mr. Koenji," at that moment, Chiba walked in as he moved his hands and feet. "Are you a reconstituted family?"

“？” Everyone looked at Mr. Koenji.

"Yes," Mr. Koenji nodded. "How do you know?"

"I saw your wedding photos while you were holding me in your bedroom, and the wedding photos show that neither you nor your wife have a Mt. Fuji hairline, but the picture of Miss Keiko on your bedside table shows that she has a Mt. Fuji hairline." Chiba explained. "The Mt. Fuji hairline is a dominant gene, so Keiko's presence of this trait shows that before the current Miss Koenji, there was another lady who provided Miss Keiko with the dominant gene inheritance of the Mt. Fuji hairline."

"Yes," Mr. Takaenji sighed. "It's for this reason that Keiko has a very bad attitude towards her insiders."

"Excuse me," Gregory asked suddenly. "Do you know a man named Mauricio?"

"He's the Spanish teacher we hired for Keiko," Mr. Koenji replied. "Is something wrong?"

"We'll have to talk to him," Grigory replied. After all, judging by the diary, it was the last thing she intended to do. Also, officer, I'm going to go back - studying corpses is more of my forte than studying the layout here. Also, Qianyu, you also follow me back to Rice Flower Central Hospital. ”

……

Originally, the Metropolitan Police Department Forensic Criminal Investigation Center was only a temporary forensic base before the renovation was completed, but because Gregory and the Metropolitan Police Department signed an equal cooperation agreement, the Forensic Criminal Investigation Center has now suspended the renovation and moved all the equipment to the abandoned old building of the Metropolitan Police Central Hospital, which is directly used as a new forensic criminal investigation center.

"Why are only skeletons left?" Qian Yu looked at the skeleton in front of him and asked. "If you only disappeared the night before yesterday, how could you have ossified so quickly?"

"She was soaked in lye after her death, which made the remains very depleted." Grigory replied.

"Llye?" Chiba raised an eyebrow as he thought of something.

"Yes," Gregory said, as Thousand Feathers realized. "If you can't bury a corpse deep enough, but you want to keep the animals from digging it up too early, then you need to cover it with a layer of lye – that's typical gangster practice."