Xiao Qingyin recalled that Ning had accidentally taken a tracking pill at her place, and said to Wei Yan, "Auntie took a tracking pill at my place a couple of days ago. She has a fragrance that only glass butterflies can smell, which can be used to track people."

Wei Yan was overjoyed: "Sister Xiao, you are truly my savior."

Wei Zhenghong was quite surprised: "There is such a medicine in the world."

"But we can't have too high hopes."

Xiao Qingyin added.

"The scent of the Tracking Pill can only last for seven days. Two days have already passed, so there are still five days left to track it. Also, the Glass Butterfly only reacts within 100 meters of its target."

Even so, it's still better than us searching like headless flies.

Wei Yan expressed his gratitude.

"I'll go and gather the men right away."

Wei Zhenghong said, "I also have some manpower on my side, let's join forces to search."

Wei Yan shook his head: "The Marquis's residence has enough manpower, there's no need to trouble you."

They have severed ties, and Wei Zhenghong is now just an ordinary person; he doesn't want to drag him into this.

Wei Zhenghong's face darkened upon hearing this.

"What time is it? Why are you still being so formal with me? Do you have more tracking experience than I do? You've never even left the capital, and you've never been on a battlefield. Do you think you can find someone just by taking a few people out?"

Wei Yan was so speechless that he couldn't utter a single word.

He really had no experience in tracking.

Wei Zhenghong had fought for many years. Although he could not be considered an undefeated general, his experience in fighting enemies and tracking was definitely hundreds of times better than his.

With his help, the chances of finding his mother will be much higher.

Now is not the time to dwell on grudges.

He nodded and said, "Okay, then I'll trouble you."

Wei Zhenghong's expression softened: "That's more like it."

The father and son, along with their men, captured a batch of glass butterflies and set off to track down the Ning family.

Xiao Qingyin wasn't idle either.

The people who kidnapped Ning Shi and those who came to steal the bird were most likely the same group, and the bird thieves were the same people who attacked Yun Shu and Yi Shuihan earlier.

Therefore, it can be inferred that these events were all orchestrated by the same person.

This person is either from Beijin or Xilin.

The first person she thought of was Princess Xilin.

The Xilin cavalry lost to spearmen and cannons, and Xilin ceded territory, paid reparations, and sent a princess to marry into a foreign land. They must have been very resentful.

Princess Xilin was not a peaceful person either.

After the Duke of Anguo's family was stripped of its title and Wei Teng was reduced to a commoner, Princess Xilin remained silent and uncomplaining, which was not in line with her personality.

She's probably just trying to create trouble, which is why she's maintaining a facade of peace.

Considering Chang Yu'e's series of actions to get close to Wei Yan after Yun Shu's incident, Xiao Qingyin suspected that Princess Xilin might have initially wanted to use Chang Yu'e to control Wei Yan quietly.

After Chang Yu'e's failure, she turned her attention to Ning Shi, forcing Wei Yan to walk into her trap.

As for why he killed Yi Shuihan, perhaps it was purely out of revenge.

—What you can't have, you must destroy.

Thinking of this, she realized something was wrong.

He quickly instructed Yi Wu: "Take men and find Princess Xilin immediately, and take her into custody."

"OK!"

Yi Wu accepted the order and left.

He returned to report in less than fifteen minutes.

"A fire broke out at the Wei residence before dawn. The courtyard where Princess Xilin lived was burned down, leaving behind three female corpses that were burned beyond recognition."

Xiao Qingyin's heart sank.

As expected, she is Princess Xilin.

The other party had prepared to escape long ago, burning houses, kidnapping people, and stealing birds, and was doing so on multiple fronts. They are probably on their way back to Xilin now.

There are many routes from the capital to the border, and it is difficult to find one if you don't know the route.

We can only pin our hopes on Wei Yan and his son.

However, Chang Yu'e should still be in the capital, and some of our speculations can be confirmed with her.

He then ordered Yi Wu to bring Chang Yu'e back to the mansion.

Chang Yu'e seemed to have known this was going to happen, and when she was suddenly brought over, there was no sign of panic on her face.

Upon meeting Xiao Qingyin, he promptly and concisely explained the whole story.

“It was Princess Xilin who instigated me to plot to seize the position of Lady of the Marquis of Jing’an. She said she could help get rid of Yun Shu. When I saw that Yun Shu was indeed in trouble, I approached the Marquis of Jing’an. But my method didn’t work, so I used her method, which was to make a move at the palace banquet.”

After saying that, she took a bookmark out of her sleeve.

Xiao Qingyin took it.

The bookmark had a line written on it: "I also have a five-eyed dzi bead. If you want it, come find me in the royal city."

Even she was caught in the trap.

She is indeed missing one more five-eyed dzi bead to complete that dzi bead bracelet.

Princess Xilin once lost a two-eyed dzi bead to her in a bet. If one were to investigate in detail which dzi beads she had obtained, one could deduce that.

The bait might be fake.

It's true that they lured her to Xilin Royal City.

What she was after was probably her medical skills.

She hadn't forgotten that the other party had made a bet about "tendon-repairing and bone-setting ointment".

This person really made the most of his time in the capital.

They have a thorough understanding of people's hearts.

But even if Princess Xilin had a five-eyed dzi bead, she wouldn't risk going to someone else's territory.

She's not tired of living.

She tore off the bookmark and looked at Chang Yu'e.

"You think I'll let you off the hook just because you've shifted all the blame onto Princess Xilin?"

Yun Shu is still lying in bed.

Chang Yu'e's composure finally vanished.

"What do you want to do? I didn't kill her."

“You and Princess Xilin are birds of a feather. She ran away, so if you don’t take the blame, who will?”

Xiao Qingyin gave her a dose of medicine that rendered her, like Yun Shu, unable to move anything except her eyes.

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