In order to make the carriage slow down and stop quickly, Jack the Ripper and Conan both tightened the reins and forcibly reined in the horses' heads.

This action requires a lot of strength.

The reins will definitely leave very obvious marks on the palms.

"And the reins of the carriage are made of cowhide."

"The leather dyeing process in this era was not yet mature. If the palm of the hand comes into contact with the reins for a long time, the black dye that falls off the reins will inevitably be contaminated."

Conan looked carefully at the slightly blackened mark on his palm.

Even after wiping off, these black dyes will leave a strong leather smell on your palms.

Jack the Ripper fled to the train in a panic, and could barely change his clothes and blend in among the train passengers and staff. That was considered a quick move.

There was no way he would have time to clean the marks on his hands.

"That's right..."

"As long as you find someone with strangulation marks on their hands, black dye on their hands, and the smell of leather——"

"We'll find Jack the Ripper!"

But in just a short moment, Conan had already figured out how to solve the final puzzle.

This speed is already staggeringly fast for his fellow detectives.

But...

Lin Xinyi actually cracked it faster than him?

Looking up at Lin Xinyi with a smile on his face, Conan couldn't help but feel a little bit disappointed.

Lin Xinyi also noticed Conan's eyes:

"Conan, you should have thought of it..."

"The way to find Jack the Ripper?"

"Yeah." Conan nodded.

He put aside the little disappointment in his heart and looked sharply at the dozen suspects in front of him:

"This one-out-of-ten puzzle looks difficult, but it's actually very simple."

"Because the way to solve this problem..."

"It has been given to us a long time ago."

As he said that, Conan raised his hand with the marks of strangulation.

Lin Xinyi also raised his hand.

However, there were no marks on his hands, no dye, and no smell of leather.

"Uh..." Conan was slightly startled:

He suddenly felt something was wrong.

At this time, only Lin Xinyi was heard, following what he just said:

"Conan is right."

"The way to solve the puzzle has been given to us a long time ago."

"I had always wanted to use this method when I was interrogating those coachmen."

"But because I couldn't be sure at that time, Jack the Ripper must be among the suspects I found."

"And there were Officer Lestrade and those London patrol officers present at the time. If I took that simple method of solving the problem, I could easily get myself into trouble."

"But... things are different now."

"Without those obstructive police officers, I can safely use this trick."

A mysterious smile appeared on Lin Xinyi's lips.

But the more Conan listened, the more he felt that the situation was not good:

How do you feel...

The "cracking method given to one's hands" that Lin Xinyi mentioned is the same as the "cracking method given to one's hands" that he thought of...

It seems different?

"That's right!"

Lin Xinyi's wrist flicked.

A handful of dark objects suddenly slipped out of his sleeves:

"Here's how to solve the puzzle—"

"Royal Small Arms Factory, 1887, Webley MK.VI revolver!"

Conan: "????"

"This is playing a game."

"Does anyone remember how many NPCs they have killed?"

Lin Xinyi didn't say anything and just shot:
Chapter completed!