Although the reason sounded incredibly absurd, Wang Ruofu completely believed that the Su Yan in front of him was indeed 'Su Yan'.
Wang Ruofu's voice trembled slightly, actually because she was afraid that her efforts would be in vain. "You...you are really Xiao Yan'er?"
At this moment, tears blurred Su Yan's vision. She nodded and said, "Senior sister, I am Xiao Yan'er."
Hearing Su Yan's firm answer, Wang Ruofu relaxed as if a taut string had been released. He rushed forward and hugged her tightly, sobbing uncontrollably, "Why did you hide it from me... I thought I was the only person left in this world..."
Wang Ruofu, an orphan, followed Lu Yuanxiu from a young age and later studied medicine under Su Ci.
Those ten years were the happiest days of Wang Ruofu's life; Su Ci and his wife treated her like their own daughter.
Wang Ruofu had long regarded the Su family as her own.
But four years ago, the Su family was brutally murdered, and Wang Ruofu felt as if the sky had fallen.
Now that she could reunite with Su Yan once again, Wang Ruofu cried and laughed, her emotions running high, and her breathing became rapid.
Su Yan immediately noticed that something was wrong with Wang Ruofu and quickly took her pulse to check her physical condition.
Fortunately, there is nothing seriously wrong, but one should avoid extreme emotions such as sadness or joy.
Su Yan quickly comforted Wang Ruofu, raising her hand to wipe away the tears from the corners of her eyes. "Senior sister, I'm sorry, I don't dare to tell you the truth. I'm afraid of bringing you disaster."
"Silly girl, you're my only sister in this life. You shouldn't have kept it from me from the beginning. I'd be willing to go through fire and water for you..."
"My senior sister is still the best to me..."
"But let's get back to the main point. I'm currently investigating the real culprit who poisoned the Empress Dowager, but I don't know the source of the poison. Senior Sister, please help me..."
After saying that, Su Yan pushed 'Hidden Edge' in front of Wang Ruofu and acted coquettishly as she did when she was a child.
Wang Ruofu looked at Su Yan with great affection, smiled and reached out to lightly flick her forehead, "You're still the same as before."
From a young age, no matter what Su Yan wanted, Wang Ruofu would grant her any request as long as she acted cute.
Although Su Yan now has a completely different appearance than before, Wang Ruofu still dotes on her and agreed without the slightest hesitation.
Wang Ruofu stood up and walked towards the screen behind him, seemingly touching something.
The bookshelf holding the books suddenly began to rotate slowly, revealing a hidden door to a secret room behind it.
Wang Ruofu smiled and waved to Su Yan, "What are you still looking at..."
Upon hearing this, Su Yan immediately picked up the hidden weapon on the table and walked towards Wang Ruofu.
Su Yan was not as talented as Wang Ruofu in the art of Qimen Dunjia and setting up mechanisms, but she knew that her senior sister would build a secret room whenever she decided to settle down somewhere.
So when a hidden door appeared in the wall, Su Yan didn't seem particularly surprised.
Wang Ruofu's secret room wasn't very big; it was just a small room containing many special tools for refining medicines and some trinkets he had made himself.
Because Wang Ruofu did not stay in Chang'an for long, there were not many belongings in the secret room, but there were still plenty of medicine-making equipment.
The table was covered with transparent glassware, which had been purchased from the Western Regions at great expense.
Even if you put everything in the dark room together, it wouldn't be as valuable as transparent glassware.
As soon as Wang Ruofu entered the dark room, she smelled a very strong medicinal odor and guessed that her senior sister was refining medicine in the dark room.
Su Yan covered her nose with her sleeve; the medicinal smell that filled her nostrils was not only strong but also extremely intoxicating.
This was the first time she had encountered Wang Ruofu concocting such a strange medicine, and she couldn't help but ask curiously, "Senior Sister, what kind of medicine are you concocting this time?"
Wang Ruofu turned his head and saw Su Yan's furrowed brows. He couldn't help but smile, rolled up his sleeves, and walked to the table. While tidying up the glassware, he answered her question with a smile.
"I'm working on detoxifying the poison from the angelica..."
Su Yan's mouth dropped open in surprise, and she looked at her with a very surprised expression, "Antidote?"
In that brief instant, a million thoughts raced through Su Yan's mind. Could it be that Ye Qingzhu really gave her poison?
But she had checked and found that the herbal remedy was indeed a life-saving medicine.
Seeing that Su Yan had misunderstood his words, Wang Ruofu immediately explained, "The infertility-preventing incense is indeed a life-saving medicine, but the medicine itself is poisonous. It's like robbing Peter to pay Paul. I'm trying to counteract its toxicity now."
Upon hearing Wang Ruofu's explanation, Su Yan recalled what He Po had said: once someone takes the contraceptive incense, neither the man nor the woman will be able to conceive in this lifetime.
"Senior sister, is it possible to neutralize the toxicity of the contraceptive incense now?"
As soon as he finished speaking, Wang Ruofu's face visibly showed disappointment. He sighed softly, shook his head, and said, "No... I have never seen such a strange and bizarre poison. I can't figure out what kind of medicine it is made of..."
After hearing this, Su Yan also became worried about Wang Ruofu, but an idea quickly popped into her mind.
Since the contraceptive incense was obtained from the Ghost Market River Woman, she must know the recipe.
“Senior sister, when I was investigating Alemu’s case, I found the whereabouts of the contraceptive incense at the River Goddess’s place in the Ghost Market. But now the Ghost Market has been raided, and I don’t know where the River Goddess went. How about I go with you to the Ghost Market to take a look…”
Wang Ruofu shook her head, declining Su Yan's offer, "No need for now. Aren't you going to investigate the Empress Dowager's poisoning case?"
Although Wang Ruofu held a position at the Dali Temple, she was aware of the responsibilities of the Surveillance Bureau. Once a major case occurred in the court, it would spin like a top, not to mention that this time it involved the Empress Dowager.
Wang Ruofu was still able to distinguish between what was urgent and what was important.
After saying that, Wang Ruofu placed the 'Hidden Edge' that Su Yan had brought into a glass container, which contained something that looked like water.
As soon as the hidden weapon was lowered, Wang Ruofu shook the instrument, and saw the nearly dried blood clinging to the weapon slowly mingling with the transparent liquid.
There seemed to be too little blood, and the color of the liquid didn't seem to change much.
Wang Ruofu held the glass instrument up to the light shining through the window.
Although Su Yan has no talent for poisons, she has a sharp eye.
When the glassware is illuminated by sunlight, something seems to be floating subtly, but it is not easy to distinguish without careful observation.
"Senior sister, look! There seems to be something inside..."
Wang Ruofu picked up the peephole he had bought from the table, aimed it at the equipment, and began to examine it carefully.
Just as Su Yan said, there really was something there.
Inside the container was a very thin, wriggling worm. It seemed to have no skin and was a similar color to the water. Unless you looked closely, you would never notice it.
This was the first time Wang Ruofu had ever encountered something like this in human blood, and he asked in surprise, "Could this worm be a parasite?"
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