The widow becomes a fairy, and the time-traveling girl counterattacks and becomes the queen

"What on earth is so poisonous that it can poison everyone at the same time and repeatedly?" Wang Xinyao frowned and kept muttering to herself.

"Why has there been no new cases in Xiejia Village? Is it really as simple as just because it is located in a remote area?" At this moment, she suddenly had an idea and thought of a key factor.

"water……"

"water……"

Almost at the same time, Zhao Haoxuan, who was standing beside him, blurted out the answer. The two looked at each other, and there seemed to be some kind of tacit understanding in their hearts.

Zhao Haoxuan then turned to look at Zhou Yunxi beside him and ordered seriously, "General Zhou, immediately send someone to quietly fetch some water from wells in different parts of the city. Remember, this must be done in secret and must not attract anyone's attention."

"Yes, Your Highness!" Zhou Yunxi responded with a fist salute, then turned around and quickly arranged for his soldiers to carry out the mission.

Not long after, Zhou Yunxi returned hurriedly with a group of soldiers, carrying several buckets of water that had just been drawn from various wells.

After the soldiers put down the buckets and left, Wang Xinyao hurried forward and took a bowl of water sample from each bucket.

She first put her nose close to the water and sniffed the water carefully, but did not smell anything unusual.

Then, she carefully observed the color of the water and found that apart from being slightly yellow, the water looked no different from ordinary water. From its appearance and smell, she could not tell that there was anything wrong with the water.

So, Wang Xinyao looked at Zhou Yunxi and said, "Master Zhou, go get me a silver needle."

Zhou Yunxi did not dare to delay at all. He immediately turned around and walked quickly to the table where the tools were placed. He carefully picked up a thin and sharp silver needle and quickly handed it to Wang Xinyao.

Wang Xinyao took the silver needle and put it into the water. However, after waiting for a while, the silver needle did not show any abnormal reaction.

This result made everyone present frown and wonder in their hearts: Are we going in the wrong direction?

Everyone's eyes turned to Wang Xinyao, with confusion and uneasiness in their eyes.

Wang Xinyao did not explain and immediately took out the eighty-one silver needles from the cloth bag she was carrying.

Wang Xinyao took a deep breath, and then began to concentrate on using these silver needles to re-test.

As time passed, everyone's hearts tightened. Finally, just when everyone was about to lose their patience, the silver needles slowly turned black!

"What a cruel method!" Zhou Yunxi, who had been standing nearby and observing nervously, couldn't help but shout angrily, his eyes wide open and his face full of anger.

Wang Xinyao looked at the blackened silver needle and fell into a brief moment of contemplation. After a while, she seemed to have thought of something and took out a small bottle from her cloth bag again. Inside was a liquid with a faint herbal aroma.

She gently opened the bottle cap and poured some of the liquid medicine into the bowl of water in front of her. The moment the liquid medicine came into contact with the water, tiny ripples suddenly appeared in the bowl, as if a stone had been dropped into a calm lake.

Then, the ripples became more and more numerous, intertwined with each other, and the entire water surface began to tremble slightly.

Gradually, the water, which was originally slightly yellow, became clearer and more transparent.

Seeing this, Zhou Yunxi and Xu Ping couldn't help but exclaim in surprise.

Wang Xinyao did not stop there. She immediately poured all the remaining medicine into the water and tested it again with a silver needle.

This time, the silver needle still maintained its original silver-white color and never turned black like before.

"It's true!" Wang Xinyao couldn't help but screamed in surprise.

Her expression was solemn and serious, her eyes fixed on the evidence before her as she said, "This poison is actually colorless and odorless. It's truly cunning. Its toxicity is beyond imagination. Even ordinary silver needles can't detect its presence."

Zhao Haoxuan took over her words: "The person who poisoned people was extremely clever. He cleverly chose to put the poison directly into the well, taking advantage of the fluidity of the well water and people's daily dependence on water to achieve his goal of harming people."

Wang Xinyao nodded. "This poison is extremely toxic and highly contagious. Even if you don't drink it directly, you could still be infected. Even if I have medicine to treat it, the water in the well is constantly circulating. Water is an indispensable part of our daily lives. Everyone needs to drink a lot of water every day to maintain life activities. Because of this, the epidemic has recurred repeatedly and is difficult to eradicate completely."

At this point, Wang Xinyao couldn't help but fall into deep thought. She wondered, "Was the novel coronavirus pandemic that lasted for four years in the 21st century caused by human factors, or was it triggered by the evolution of nature itself?"

This troubling question always lingered in her mind. Even though the epidemic finally came to an end, no one had a standard answer to its real cause.

Zhao Haoxuan also noticed that Wang Xinyao was immersed in her own thoughts, so he wisely chose not to disturb her.

He gave a serious order to General Zhou beside him, "General Zhou, have every household take the medicine soup on time and in the correct dosage to fight the virus. They must also pour some of the soup into the wells used for daily life. Remember, every well must be filled!"

Just as General Zhou clasped his hands together and prepared to take orders and leave, suddenly, a burst of hurried and heavy footsteps came from outside.

Then, Luo Qing's anxious cry was heard: "General Zhou, Miss Wang, where are you? Oh no, there are more deaths!"

The sound was like a thunder, exploding in the air, making people's hearts tighten. Wang Xinyao immediately recovered from her thoughts.

At the same time, Ouyang Ping also hurriedly ran over from the other side of Luo Qing.

Her face was covered in tears, her eyes were red, and she spoke with a clear sobbing tone: "Sister Wang, where are you? The situation is critical, we must hurry to save people, many people are in danger and may lose their lives at any time!"

Zhou Yunxi was shocked when he heard this, and subconsciously turned to look at Zhao Haoxuan beside him, asking him with his eyes how to respond.

Zhao Haoxuan just shook his head slightly, indicating that he didn't want to see Luo Qing for the time being.

Zhou Yunxi understood what he meant instantly, and then quickly walked out of the room with Wang Xinyao.

After seeing Luo Qing, Zhou Yunxi's face immediately revealed an expression of great excitement, and he said loudly: "Lord Luo, good news, great news, Miss Wang has found the source of this plague, we are all saved!"