It had to be said that if Mu Qingqiu did something proper, she would look quite decent. She wouldn't be as dishonest as she was normally.

As a doctor, Mu Qingqiu naturally wasn't a germaphobic person like Liang He. Even if she still didn't like him, she was already used to it after so many years. Naturally, she wouldn't show any loathing in her eyes.

The handkerchief was only half dried up with blood and didn't have any clues. Mu Qingqiu also pointed at the handkerchief that was placed close to her nose. She sniffed it and then slightly wrinkled her brow.

"Master, did you find any clues?" Yan Ling asked anxiously.

Mu Qingqiu did not reply at this moment. Instead, he took out a long silver needle from somewhere and dipped it in his handkerchief.

The blood had almost dried out, and there wasn't any strong reaction. After a long while, he realized that the silver needle was slowly turning black.

This time, Yan Ling and Liang He did not urge or ask. Mu Qingqiu slowly wiped the silver needles clean, then placed them somewhere else. In short, they disappeared right under Yan Ling's nose.

Liang He was also slightly surprised as he looked at Mu Qingqiu. Mu Qingqiu, seemingly unaware, picked up the teacup on the table and took a sip.

"The blood stains are extremely dry. If it were an ordinary doctor, I'm afraid that I would not have been able to find anything." Mu Qingqiu leaned back in her chair and replied in a leisurely manner.

At first, Yan Ling was a little nervous, but after hearing this, he knew there was hope. He quickly smiled and said, "Master's medical skills are superb, and naturally, it's not something an ordinary doctor can compare with."

Hearing this, Mu Qingqiu smiled in satisfaction. Narrowing her eyes, she said somewhat complacently, "Of course. My old man has practiced medicine for so many years, so his medical skills are at least of the first class."

Liang He seemed to be intentionally talking back to Mu Qingqiu. Immediately, he said with some disdain, "I heard you talk about it alone. Even now, you still haven't told us what it is. If you don't know, say that you don't know."

When Mu Qingqiu heard this, she immediately puffed her beard and glared her eyes. Mu Qingqiu could probably guess that the reason why Liang He didn't like her was because of his words. But for the same reason, how could Mu Qingqiu like Liang He?

Mu Qingqiu pretended to be angry, turned her head, and said with a sneer, "Since you said I don't know, then I just don't know. You'd better find someone else."

Liang He had originally thought that with his excitement, Mu Qingqiu would definitely be able to tell what it was. He hadn't expected that Mu Qingqiu would actually go out of her way to recruit him. For a moment, even Liang He didn't know what to say.

Looking at the two of them, Yan Ling understood that one of them was intentionally making people angry, while the other was doing the opposite. He raised a rock and smashed it against his own foot, and immediately felt that he was truly at loggerheads, leaving him at a loss whether to laugh or to cry.

Now that he was here, the murderer was on the verge of appearing on the surface. There was no point in wasting time to find another doctor. Although Mu Qingqiu was somewhat proud, her medical skills were genuine, and she didn't seem like someone who would casually talk about such matters.

Since he had just said that "ordinary doctors might not be able to tell," it was unlikely that anyone else would be able to find out. Why waste this time if you know it?

However, looking at the situation now, he understood that it was impossible to make Liang He give up. As for Mu Qingqiu, he could only rely on his own thoughts to tell the truth. It seemed like he still had to rely on his words at such a crucial moment.

Yan Ling sighed helplessly. He then looked at Mu Qingqiu with a wronged expression and said with a pitiful expression, "Master, this is a murder case. Your disciple is the suspect killer. If you can't find the real murderer, I will be beheaded by the Emperor. "

It was obvious that what Yan Ling said had some effect. Mu Qingqiu turned around and said in a huff, "Little girl, please coax my old man. "I've only heard that the Emperor asked you to investigate the murderer together with that stinking brat by your side. He didn't say that he suspected you of something!"

Since Yan Ling had been exposed, he didn't feel awkward at all. Even though Mu Qingqiu was currently in a huff, he knew that he had let down his guard.

Yan Ling laughed without a care, but did not notice that the look in Liang He's eyes had changed. Letting Yan Ling and Liang He investigate Bai Yiyi's death was an order issued by the emperor just this morning. There weren't many people who knew about it.

Not to mention a small doctor, there were still many influential people in the capital who were still in the dark. However, Mu Qingqiu was well aware that even the emperor didn't hold anything back.

Liang He was now more and more suspicious of Mu Qingqiu's identity. Even though he had known from the beginning that Mu Qingqiu wasn't a simple doctor, he didn't expect that she would have already reached such a level.

He instead stepped forward a little, grabbed Mu Qingqiu's sleeve and gently shook it, before saying in a spoiled manner, "Master, since you know, then you should also be clear that if you can't find the real culprit, then I will definitely be punished."

Although Mu Qingqiu still did not react, her eyes slightly wavered. Yan Ling immediately took advantage of this and said, "Master, are you really willing to see your new disciple being punished by the Emperor like this?"

Mu Qingqiu stared at Liang He and said with disdain, "Isn't there a lot of talented people under that brat's command? You don't need my help. "

But after saying that, Mu Qingqiu didn't continue to try to play this trick. Instead, she put on a serious expression and said, "Although from the results just now, the smell and reaction are very light, it's basically certain that it's toad tofu."

"Chan Su, what's that?" Liang He couldn't be bothered to argue with Mu Qingqiu now, so he asked subconsciously.

Mu Qingqiu glared at him and was about to explain, but Yan Ling cut him off. "I've seen it in the medical books before. Toad tofu is the mucus on the skin of a toad. It's said that it's extremely poisonous."

Liang He nodded his head in understanding. It was Mu Qingqiu who said with a surprised and happy expression, "Looks like my disciple is even more powerful than I imagined. It's true. Toad Sesame is usually white milky or light yellow serous and poisonous. "

After saying this, Mu Qingqiu seemed to have thought of something. She frowned as she looked at the handkerchief on the table. She asked with some curiosity, "Why did you give this to me? Where are the dregs?"

Liang He tilted his head and said, "We've already sent someone to get the dregs. They should be here soon. Who knows, maybe the suspect might be here soon as well."