After Sun Peitao walked in with his mother in his arms, Lin Yi and Wu Jiang looked at each other, their brows furrowed.

Wu Jiang took out a cigarette from his pocket and lit it on his mouth, slowly exhaled a puff of smoke and said:

"We've come full circle, and we don't have a clue, and we haven't found anything out of the ordinary."

"yes."

Lin Yi couldn't help but sigh, and then questioned:

"Could it be that her disease is not infected by the outside world, but a disease of congenital etiology?"

"If so, we can only continue to examine her body and look for a breakthrough in this area."

Wu Jiang took a deep puff of cigarette and nodded.

"Well, Pei Tao will come out and talk to him later, and let him continue to bring his mother to the hospital tomorrow."

Soon, Sun Peitao walked out.

When he saw the expressions on Lin Yi's faces, he guessed the approximately.

"What, Dr. Lin, haven't you found anything?"

"Well, you can continue to come to the hospital tomorrow for a check-up."

"Alright then, Dr. Lin, you've worked hard."

Sun Peitao endured his frustration and squeezed out a smile and said to Lin Yi and the others.

"We'll go back today."

After Lin Yi finished speaking, he and Wu Jiang walked towards the gate of the courtyard.

Sun Peitao followed behind them, looking lonely.

"Huh?! Wait a minute! ”

Lin Yi suddenly stopped, stared at the southwest corner of the courtyard and shouted.

"What's wrong?"

Wu Jiang and Sun Peitao suddenly asked suspiciously, and then followed his gaze.

I saw that there was nothing else in that corner except a knife.

Lin Yi walked directly to that corner.

Seeing this, Wu Jiang and Sun Peitao hurriedly followed.

Wu Jiang couldn't help but continue to ask:

"Dr. Lin, what's wrong, did you notice anything wrong?"

"Why is there such a knife here?"

Lin Yi raised the knife and shook it at them.

Wu Jiang looked at the not-so-clean knife in Lin Yi's hand, and couldn't help but ask suspiciously:

"Is there anything unusual about a knife? It must have been Pei Tao's mother cutting weeds or cutting branches in the field. ”

"Holy! No, how can there be blood on this blade? ”

Suddenly, Wu Jiang's eyes widened violently, pointed at the knife and exclaimed, and then looked at Lin Yi with a strange look:

"You mean....... she ......."

Wu Jiang's heart was beating wildly, and his hairs were rising.

I didn't expect to come to investigate the clues, it really seems to be investigating the scene of a murder!

It's so exciting!

"What do you want?"

Lin Yi looked at him like a fool, and couldn't help but sigh in his heart:

"That's a tease, isn't it? Looking at him in the hospital, he is still talented and knowledgeable, but I didn't expect it to be so bad in life......."

"Huh? Isn't it? ”

Wu Jiang was said by Lin Yi, and then he came back to his senses.

"Big brother, do you really think we're here for criminal investigation!"

Lin Yi sighed helplessly, and then explained:

"I mean, this knife is a slaughtering knife for slaughter, not for cutting branches."

"But Pei Tao just said that his mother went to the town to buy meat, and the family didn't raise livestock, how could she keep this kind of knife?"

Wu Jiang smiled awkwardly and said:

"Oh, that's what it means, I just thought too much, I'm sorry."

Damn, the atmosphere is there just now, it's too deep into the play!

At this time, Sun Peitao on the side suddenly breathed a sigh of relief, and jokingly said to the two:

"You two scared me out just now, and almost turned my house into a murder scene."

"Misunderstanding, misunderstanding!"

Wu Jiang patted him on the shoulder and laughed dryly.

Then he said to Lin Yi:

"What's so strange about having a butcher's knife at home, maybe it's used by chickens and ducks at home before."

Lin Yi turned his head to look at Sun Peitao and asked:

"Did your mother raise poultry some time ago?"

"No....I used to raise chickens, but it should have been two or three years since now, and I haven't kept them since then."

Sun Peitao thought for a while, and then said.

"Look."

Lin Yi looked at Wu Jiang and spread his hands, then touched the blood stains on the blade with his hand and said:

"I haven't raised poultry recently, but the blood stains on this knife are about two weeks ago, and it won't be more than a month at most."

"! Really? Can you see that? ”

After Lin Yi said this, Wu Jiang suddenly looked at Lin Yi in shock.

What the hell is this guy doing?!

Not only is he so proficient in the knowledge of diseases, but he can even feel the blood stains from a long time ago.

This is not within the scope of conventional medical skills!

Lin Yi didn't pay attention to his stubble, but continued:

"So she's definitely used this knife recently, but there's nothing that needs to use it, how do you explain that?"

"It's....maybe this knife isn't hers, it's a neighbor who put it here."

Wu Jiang thought for a moment and replied.

"Do you think someone would put a butcher knife in someone else's yard? Isn't this explanation too far-fetched? ”

"That could be ......"

Wu Jiang's brain raced, trying to come up with a reasonable explanation, but after a while, he gave up.

Sometimes that's how it is, a small detail goes unnoticed or even taken for granted.

But if you look closely, you can't figure out the rationality of its existence.

Sun Peitao listened to the conversation between the two of them next to him, and couldn't help but sit still, so he said directly:

"I'll go in and ask my mom!"

He had lived at home for so many days, and the knife had always been here, but if Lin Yi hadn't brought it up, he wouldn't have noticed it at all.

Now that I think about it, this is indeed the case, why does my mother have to slaughter animals, so why do I have a bloody butcher's knife here?

Thinking about it, he walked straight to the house.

Lin Yi and Wu Jiang also followed behind.

"Mom, what's that butcher knife in the yard for?"

After entering the door, Sun Peitao asked straight to the point.

His mother, who was lying on the bed, changed her face slightly when she heard this question, and then sat up slowly, and said:

"Oh, that knife was turned out of the kitchen some time ago, and I threw it in the yard and didn't care about it."

After listening to her answer, Sun Peitao and Wu Jiang looked at Lin Yi one after another.

Lin Yi could see through his keen gaze and through the observation of his mother's eyes and subtle expressions that she was obviously lying!

"Haven't you used that knife since you took it out?"

Suddenly, Lin Yi stared at her and asked slowly.

She looked at Lin Yi instantly, nodded and said:

"Ah, I haven't used it, what's wrong?"

"You're lying! The blood stains on the knife were only recently stained! ”

Lin Yi stared at her directly, as if he wanted to see her through.

But she hurriedly avoided her gaze and insisted:

"I really haven't used it, the blood stains on it are stained before."