Old Master He stepped forward and looked at the black liquid in the basin, his brow furrowing. "It's blood."

What kind of poison could cause someone to vomit black blood, and even change its smell?

As soon as he finished speaking, the faces of the surrounding pharmacists froze, and they all saw seriousness in each other's eyes.

The man who was vomiting blood just a second ago is now lying on the bed, fast asleep.

"The poison hasn't been completely neutralized. Give it another pill in eight hours, and then prepare to put it in the basin." Qi Jiu placed the pill she had just prepared in the hands of the butler beside her.

The old man was taken care of by the He family's servants, and everyone left the place quickly.

Along the way, the pharmacist who had previously questioned Qi Jiu fell silent. His expression was somewhat enigmatic.

The middle-aged man received timely medical attention and quickly moved on to the main topic of the evening: the seminar.

However, on the way to the seminar, Old Master He looked at Qi Jiu with a somewhat ambiguous expression in his eyes.

"Qiqi, I remember you majored in the same field as Qingfeng in your freshman year. How did you learn about this poison?"

He really couldn't help but want to know the answer to this question. To stand out among so many people, one must be no ordinary person.

What appeared to be an unintentional inquiry was actually an attempt to probe.

Faced with this question, the girl simply smiled faintly.

“I studied abroad before and met many pharmacists and poison doctors. I studied with them for a period of time. That’s why, even though I’m only a freshman, my grades in pharmacy are pretty good.”

She spoke very modestly, which made Grandpa He laugh heartily, and he looked at the girl with more satisfaction.

"I see."

"Yes." Qi Jiu's smile was appropriate.

What other reason could there be? They can't just admit that they were a poison master before, can they?

If she were to admit this identity, she, the poison master, would probably be kicked out by these pharmacists in no time.

Grandpa He stroked his beard and nodded.

"Your learning ability is really strong. You studied abroad and your grades were so outstanding. If you hadn't come to China, you would probably already be a famous pharmacist."

He Qingfeng is the heir of the He family, so he must have been exposed to pharmaceutical knowledge at a young age, but unfortunately, he still can't compare to this girl.

Qi Jiu glanced at the people who had followed her and said, "So-so."

At this moment, He Qingfeng, who had been missing for some time, returned. His breathing was somewhat unsteady, and he was even panting.

His previous cold, poker face had long been replaced by seriousness, and he turned his gaze to Old Master He.

“Grandpa, I checked this person’s identity before, just like Qiqi asked me to.”

As he spoke, he glanced at Qi Jiu beside him, "This person's identity doesn't match the one on the invitation. And I've asked other family members, and no one knows him. It seems like no one has seen him at all during the whole trip."

As soon as he finished speaking, the crowd behind him erupted in uproar.

Sure enough, it was no coincidence that this person was here; it could even be said that it was intentional.

"Why did the security guard at the entrance let him in?"

Qi Jiu looked at He Qingfeng in front of her, her eyes slightly narrowed.

I remember when they first arrived at the He family's house, they not only carefully examined the invitation, but they also questioned even the slightest suspicious signs.

Whether the invitation and the person are the same person should have been checked beforehand.

He Qingfeng seemed to have thought of something, and his expression became even more unpleasant.

"I just asked the security guards at the entrance, and they didn't remember this person either."

Old Master He paused, then tapped the floor erratically with his cane. This matter was clearly no longer so simple.

"Is this the only door the He family has opened for this seminar?"

Suddenly, Qi Silin, who had been pretending to be invisible around Qi Jiu, spoke up. He looked at He Qingfeng with a calm expression.

He Qingfeng nodded.

"Yes, this seminar only opened one gate. We have arranged a lot of security personnel and bodyguards at the gate. In order to avoid a chaotic scene caused by everyone rushing in, we have even adopted a queuing system."

In other words, this middle-aged man had no chance of getting in, let alone sneaking in with someone else's invitation under such strict security measures.

This is indeed possible, but the world is so big, there must be some way.

"What if medication was used?"

Amidst the surprised gazes of the crowd, Qi Silin looked at Qi Jiu.

"Since he could be poisoned so accurately at the seminar, he must be skilled in pharmacology. It's also possible that he used date rape drugs or something."

The girl tilted her head slightly to look at him, and pursed her lips. "Possibly."

Not all date rape drugs will cause unconsciousness; some drugs will render a person unconscious for a short period of time.

Therefore, this conjecture is not impossible. In fact, it is highly probable.

Qi Silin shifted his gaze to Old Master He, "While Qiqi was being treated for the poison, I went out for a bit and discovered this matter, so I investigated it as well."

As he spoke, he pulled a piece of paper out of his pocket.

"The true owner of this invitation is also a pharmacist, and he is currently tied up in a place near the edge of City A. It is clear that this person came prepared. I have already sent people to rescue him."

He handed over the original owner's information about the invitation to Mr. He.

Grandpa He's expression changed as he looked at the photo and name. "I vaguely remember him, but I couldn't recall him just now."

As soon as he finished speaking, he realized the seriousness of the matter.

How could this person in the shadows know so clearly that they weren't familiar with the people at the seminar? That's how they were able to make their move.

Thinking about it this way, it is indeed a rather frightening matter. We were careless.

"Grandpa He, if the seminar drags on any longer, it will get too late."

Seeing that Old Master He was deep in thought, Qi Jiu couldn't help but offer a reminder.

This matter is important, but we can't keep so many guests waiting here. What would that look like?

Grandpa He realized, "Yes, yes, the seminar."

Because of what happened before, at this seminar, Mr. He specially added a seat for Qi Jiu.

The pharmacists nearby did not speak up to stop it, and even the pharmacist who had previously denied Qi Jiu remained silent at this moment.

Because they have no reason to stop it now.

The young girl stood out among a group of older people.

In the audience section at the back, Qi Silin sat in the first row, made a gesture to Qi Jiu, and after seeing her nod, strode away.