"Drug testers?"

Zhang Yufei and Chen Tianlong were both stunned and asked.

"Yes, they volunteered. I know what you two are thinking—you probably think I'm too cruel. But there are all sorts of people in this world. Many people would even sell a kidney to survive, let alone test drugs?" Zhang Ju explained.

The two sighed. Indeed, the world is vast and full of surprises, and everyone is trying to make a living. No one forced those people; they volunteered, so it's not anyone else's place to interfere.

After all, it's a job for them. Which job is entirely risk-free? Even office workers have been known to jump off buildings over bad stock picks.

"Alright then, Master, time is of the essence. Let's begin!"

Chen Tianlong had been learning how to mix medicine with his mentor Ye Feng since childhood. So this time, he could somewhat assist Zhang Ju.

Lin Wushuang's condition was critical. The sooner they confirmed the prescription, the sooner Zhang Ju could be called to perform surgery on Lin Wushuang.

The three of them started their work. Although Zhang Yufei didn't understand these things, she could help by fetching medicine and water.

Thus, the three of them worked tirelessly. The door of the small room hadn't opened since morning.

Housekeeper Li Sheng knocked on the door. Without hearing the manor master's permission, he didn't dare enter on his own. So, after wandering around for a while, he left with the food he had brought.

It was not until eight o'clock in the evening that the three of them slumped on the ground, looking at the three pitch-black, glossy Bone Marrow Cleansing Pills that had been refined in the alchemy furnace.

Zhang Ju and Chen Tianlong were both very excited.

"Disciple, in a moment, we will invite the drug testers to try the medicine!" Zhang Ju had apparently forgotten the fatigue and hunger of his body, solely focused on whether the pills would succeed.

Chen Tianlong felt the same.

However, Zhang Yufei was starving. She was so weak she could barely walk.

She hadn't even had a bath after getting caught in the rain last night, which was bad enough. If she hadn't graduated from police school and wasn't in relatively good shape, an average girl would probably have fainted by now.

Seeing Zhang Yufei's pale face, Chen Tianlong suddenly realized and slapped his forehead, saying, "Look at me, I've been so anxious that I forgot we haven't even had lunch."

"Oh, right."

Zhang Ju hurriedly took out his phone and dialed a number. Not long after, Li Sheng came over carrying a small basket with food inside.

Given the special circumstances, Zhang Yufei and the others didn't worry about how lavish the meal was. Besides, they were all so hungry that their stomachs were grumbling. Who could care about such things?

Each of the three grabbed a big bun, stuffed it with some vegetables, and devoured it voraciously.

They ate like refugees who had just escaped a crisis, finishing all the food and drinks in less than ten minutes.

After drinking some soup to wash down the meal and taking deep breaths to steady themselves, Zhang Ju said to Housekeeper Li Sheng, who was standing beside them, "Housekeeper Li, quickly arrange for the drug testers to wait in the hall. We'll be there shortly."

"Yes, Manor Master!"

After receiving the order, Li Sheng hurriedly exited and went to make the arrangements.

About ten minutes later, Zhang Ju's phone rang. After learning from Li Sheng that everything was ready, the three of them took the Bone Marrow Cleansing Pills and hurried out of the house.

Their urgency wasn't because they were racing against time, but due to their worries.

Zhang Ju was concerned that if the Bone Marrow Cleansing Pill wasn't successful, he would have to spend a lot more time on research. Whether he could complete it within three months and achieve the desired effects was still unknown.

As for Chen Tianlong, his concerns were very obvious: if the medicine were unsuccessful, Zhang Ju couldn't proceed, and Lin Wushuang's condition would worsen.

That is why both of them were walking so quickly.

Zhang Yufei wasn't as anxious, but seeing the two in front of her, she couldn't help but get tense as well.

What a tiring situation, even just being a bystander is exhausting!

Before long, the three of them finally arrived at the hall of the manor. Zhang Ju hadn't set foot here for a long time, and the servants, seeing the old manor master suddenly appearing, gathered around as if they had seen an alien.

However, just as they reached the doorway, the housekeeper ordered all of them to leave. Li Sheng knew that at such a critical moment, although things seemed calm, it was often quiet before a storm.

If the drug trial were unsuccessful, Zhang Ju would definitely explode in anger. Forget the servants; even he wouldn't know how to respond.

Sure enough, once Zhang Ju and the others entered, even the housekeeper stepped out to wait, shutting the doors tightly and barring anyone from entering.

Meanwhile, in a room on the right side of the hall, there was already a man in his late twenties and a young woman in her twenties waiting to test the medicine.

Looking at this young pair, Chen Tianlong took a deep breath. But he wasn't responsible for any charity organizations. They chose their own paths; he didn't want to meddle.

"You two, take these pills. In half an hour, we'll observe the effects. Rest assured, according to pharmacology, even if it doesn't work, you won't be harmed," Chen Tianlong said calmly.

Although he couldn't help these two people, at least for this time, he could reduce their fear before taking the medicine, which was all he could do.

Indeed, after hearing Chen Tianlong's explanation, the two weren't as tense. They took deep breaths and tossed the pills into their mouths, each drinking a bit of water before sitting quietly in their chairs, waiting for the medicine to take effect.

At this moment, Zhang Ju and Chen Tianlong were the most anxious. Each for different reasons, they both desperately hoped for the success of the Bone Marrow Cleansing Pill.

Thus, the three of them waited nervously, with seconds feeling like hours, an unbearable wait.

Half an hour passed when suddenly the girl who had taken the medicine started to have a reaction. Her face began to turn red, gradually becoming as red as a boiled lobster.

Soon after, the man also began to show the same change.

This indicated that the effects were the same for both genders, which gave Chen Tianlong a sense of relief.

After all, male and female bodies have some differences. If the pill succeeded but only worked for men or women, its value would be halved.

For Chen Tianlong, if he did something, he wanted to make it perfect. Needless to say, the current result made him very satisfied.

After a little while, sweat beads covered the faces of the two testers, and their light clothing was soaked through with sweat.

Suddenly, both felt discomfort and clutched their stomachs, saying, "Manor Master, we need to go to the restroom!"

The manor master pointed to two separate cubicles on the side of the room, which Housekeeper Li Sheng had already prepared, as testing medicine could often result in vomiting or diarrhea.

It was obvious these two were going to experience diarrhea.

However, this reaction was consistent with the effects of the pills. The purpose of the Bone Marrow Cleansing Pill is to expel the impurities from the marrow, achieving the effect of cleansing the marrow and cutting the bones.

If there were no diarrhea, that would undoubtedly mean failure since where else would those impurities go? Sweat alone certainly wouldn't suffice.

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