With her eyes narrowed, Su Yushan stared intently at her and asked in a deep voice, "Where did you hear about the Rebirth Pill?"

Clearing her throat lightly, Ya Tang said through gritted teeth:

"I didn't know about this stuff. Xia'er told me about it. She said the reversal pills were very effective. She's someone I brought from my family home, and I trust her completely, which is why I asked her to buy the pills."

After buying it, I chickened out and didn't dare to take it. Xia'er kept urging me to make a decision without hesitation, saying that the medicine was similar to a pregnancy-stabilizing drug and no one would notice. But I was still very scared. After all, Jin Minjing had harmed me before, and her fate was tragic. So I couldn't make up my mind and asked Xia'er to put the medicine away.

Who would have thought that the medicine would sprout wings and fly away, leaving me speechless and unable to defend myself, thus becoming the murderer without even realizing it.

At the time, Ya Tang didn't realize anything was wrong, but now, looking back, she's shocked to realize that something was amiss.

After a moment of silence, Su Yushan understood, "You mean, there's something wrong with Xia'er?"

"I'm not sure about Xia'er yet, but Suwen is definitely problematic. She was personally assigned by the Fourth Master to serve at Huatang Pavilion. To put it bluntly, if ten taels of silver could bribe her, then countless people would be willing to use silver to harm you!"

The matter concerning Suwen is indeed somewhat strange. A junior maidservant receives one tael of silver per month, while a senior maidservant receives two taels. Although ten taels is not a small amount, Suwen received many rewards while she was in Huatang Pavilion. As long as she remained loyal, Yushan would certainly not mistreat her. She shouldn't have risked changing her medicine for ten taels of silver.

If it's just about money, it doesn't make sense, unless... there's some other grudge.

After hearing Ya Tang's words, Su Yushan's mind became even more confused. She was unsure whether she should believe this woman's words, whether they were her true feelings or a desperate tactic.

All the evidence points to Ya Tang, and Su Yushan finds it difficult to determine the truth. She decides to start with the two maids and orders them to be brought to Hua Tang Pavilion.

A quarter of an hour later, the servant rushed over and hurriedly reported, "Princess, something has happened! Suwen...she's already stopped breathing!"

Upon hearing this, Su Yushan, who was drinking nourishing soup, looked up in shock and immediately put down her spoon.

"How could this be? Was the torture excessive?"

The servant shook his head. "I asked around, and they said they were very careful when using torture. Suwen must have committed suicide out of fear of punishment."

"Fourth Prince only convicted Princess Fucha; the maid's crime has not yet been determined. Did she really have to commit suicide?"

Su Yushan suspected that Su Wen had been murdered. She invited a doctor and a coroner to examine Su Wen's food and body. However, there was no poison in the food, and apart from the wound on her forehead, there were no other injuries on her body.

Judging from the situation, he must have committed suicide by hitting his head against the wall.

With Suwen gone, one of the clues has been cut off, leaving only Xia'er.

According to Xia'er, she overheard two old women talking about the Rebirth Pill on the roadside on her way home. In order to help her master solve his problem, she came up with this idea for him.

Apart from that, Xia'er knew nothing else. No matter how the guards tortured her, she couldn't utter a single word.

The situation had reached a stalemate, and Su Yushan was extremely troubled.

Upon his return and learning of what Princess Fucha had said, Hongli asked Yushan for her opinion. Yushan didn't hide anything and instinctively shared her thoughts.

"The Fujin (wife) came from a noble family, and her perspective was different from that of ordinary women. In her eyes, even if I gave birth to a son, he would only be born out of wedlock and could not be compared with her legitimate son."

She wouldn't act unless my child threatened her child, but Yonglian has already been sent to the palace and is perfectly safe. Right now, I pose no threat to her child, so she shouldn't risk harming me, especially since this medicine isn't poison but a rebirth-changing pill; it's not worth her time.

Although Hongli had his own opinions about Yuying, given the current situation, he had to consider things from an outsider's perspective.

"The wife's personality doesn't seem like that of someone who would intentionally harm others, but it's hard to say whether she'll change over the years."

However, a single statement without concrete evidence cannot prove that the Fujin (Fujin) was the mastermind. Unless Fujin can produce irrefutable proof, she is lying.

After thinking it over for a long time, Yu Shan could only guess two possibilities: "The first possibility is that Ya Tang is lying. The second possibility is that what she said is true, but she guessed wrong, and the real culprit is not the Fujin, but someone else."

Someone else? Gao Xiuwen? Or Lan Rong? Hongli paced back and forth, deep in thought, and asked, "Do you have anyone you suspect?"

This is precisely the problem that Su Yushan is worried about: "If Su Wen were still alive, perhaps we could still find some clues, but she is gone. I guess it will be difficult to investigate further. Without evidence, I can't just falsely accuse anyone."

"Perhaps this is just a fabricated story by the Fucha clan to protect themselves."

"I don't know the truth either." Su Yushan had a splitting headache, and she frowned and rubbed her forehead.

Upon seeing this, Hongli immediately went to her side, helped her into the tent, and gently comforted her.

"No matter who it is, Fucha has malicious intentions. Keeping her around will only cause trouble. It would be better to end things here as a warning to others."

"But if what she said is true, then isn't the real culprit still lurking in the shadows?"

Killing Lady Fucha would have been easy; it would have been a matter of a single word from Hongli. However, Yushan worried that there was more to the story. After a moment's thought, Hongli decided to try a different approach.

"If you don't want to kill her, I can send her to another courtyard to lure the snake out!"

Killing Ya Tang would close the matter, leaving no further opportunity for investigation. If she were spared, there might still be room for maneuver.

Yu Shan was still unsure, but she didn't want to go too far. In the end, she decided to follow Hongli's advice and expel Ya Tang from the palace, confining her to a separate courtyard. She would see what would happen next.

Hongli handled the matter entirely without consulting his wife, the mistress of the house. Yu Ying felt somewhat uncomfortable, but she dared not argue with Hongli, nor did she dare to plead for Princess Fucha, lest Hongli suspect her and bring trouble upon herself.

In Yiyun Pavilion, Qiu Cha spoke with her master about Princess Fucha being expelled from the Prince's mansion, which Lan Rong found strange.

"Since Fourth Master cares so much about Su Yushan, and she was murdered by Princess Fucha, according to Fourth Master's nature, he should have killed Princess Fucha to avenge Su Yushan, so why would he spare her life?"

"This servant doesn't understand Fourth Master's thoughts either. Perhaps it's out of consideration for our past relationship?" After a moment of silence, Qiu Cha asked in a low voice.

"What should we do next? Eliminate the threat at its root to prevent future problems?"