"Doctor Ping, don't forget, I'm a cultivator, I won't get this disease, and I won't be in any danger if I go with you, and I can protect you. Bai Yunfei's tone was resolute.

"That's right, then let's go together and find out the root cause of the disease as soon as possible. Bandiocrity said.

"Okay, when are you leaving?" Bai Yunfei asked.

"Three months later, I need a lot of preparation now. Banity replied.

This breakfast was eaten for more than an hour, and before Bai Yunfei left, he asked for some refreshing medicine from Pingme, which was used to cultivate the illusion technique.

"Yunfei, are you going to leave again?" Ruoxue asked with some disappointment.

"Well, I won't be going too long this time. Bai Yunfei said.

Bai Yunfei patted Ruoxue's fragrant shoulder.

Back at the palace, Bai Yunfei went to Li Jian's residence and explained to Li Jian about the epidemic.

"The situation is very serious, I will order the blockade of Chang'an City, and the outsiders will strictly investigate according to the characteristics you mentioned. Li Jian said.

"The eldest prince, I will go to the epidemic area to investigate and find out the cause of the outbreak of the epidemic in three months. Bai Yunfei said.

"Go, be careful, and leave the city to me. Li Jian promised.

Back at his residence, Bai Yunfei devoted himself to cultivating the illusion technique.

This process has been going on for a month, and the progress of the first layer of the phantom technique has been completed.

Next, Bai Yunfei concentrated on absorbing the aura of heaven and earth.

After all, cultivating the illusion technique for a long time hurts the body too much.

Two months later......

"In the middle of the foundation realm, it's done!" Bai Yunfei said happily.

When Ouyang Jian increased his speed, Bai Yunfei couldn't forget to absorb the aura of heaven and earth, and when the aura pill increased his absorption speed, it took him half a year to reach the middle stage of the foundation building realm.

It can be seen that cultivation is a long process.

"It's time to go!" Bai Yunfei said.

Bai Yunfei went to see Ruoxue first, said goodbye to Ruoxue, and then set off.

On the streets of Chang'an City, basically all the people have cotton cloths tied to their mouths.

"It seems that there is already an epidemic situation in Chang'an City. Bai Yunfei muttered.

"Let's go to the infirmary first!"

Bai Yunfei trotted all the way to the medical hall.

At this time, the medical hall was already full of people, busy, and most of the patients had large red marks on their bodies, apparently infected with the epidemic.

"Doctor Ping, when are you going to the epidemic area?" Bai Yunfei asked as he squeezed in front of mediocrity.

"Yunfei, it seems that I can't go to the epidemic area, you can go for me, there are still many patients here. Bandiocrity said weakly.

Bai Yunfei looked at the mediocre face and was shocked!

The mediocre eye circles are dark, which is exactly what the epidemic looks like when infected.

"Doctor Ping, are you sick with an epidemic?" Bai Yunfei exclaimed.

"It's not too serious, it's a slight infection, but I can't leave here, and if I get someone else, it's going to be a problem. Bandiocrity said.

Bai Yunfei roughly inquired about Li Jian, and learned that a small number of people in Chang'an City had an epidemic, and the rest were safe, so Ping Yong took the initiative to ask all the patients to be gathered in his medical hall.

Moreover, the situation in the city is relatively good, almost all the outside of Chang'an City have been infected with the plague, and some towns have even been empty because of the epidemic.

"The eldest prince, there is no time to delay, I must leave the city immediately. Bai Yunfei said eagerly.

"Go ahead, be careful!" Li Jian instructed.

"By the way, take this token, if the soldiers defending the city stop you, this one can help you out of the siege. Li Jian said as he took out a token with a golden pattern and handed it to Bai Yunfei.

"Thank you!" Bai Yunfei clenched his fists.

Bai Yunfei came all the way to the city gate and found that the gate was closed, and two soldiers tied cotton cloth to their mouths and guarded both sides of the city gate.

"What are you doing?" the two soldiers swung their halberds to block Bai Yunfei's way.

"I was ordered by the eldest prince to go out of the city to observe the epidemic. After Bai Yunfei finished speaking, he took out the token given by Li Jian and handed it to the two soldiers.

"Okay, you can go out, the epidemic is serious, be careful. A soldier instructed, and opened the gates.

"Thanks for the reminder!" Bai Yunfei clenched his fists.

Not long after the white clouds flew out of the city, a piercing cry came from the sky.

A pigeon flew down and landed on Bai Yunfei's shoulder.

Bai Yunfei untied the note on the pigeon's leg and opened it to see that it was a flying pigeon sent by the shadow.

"Yunfei, this disaster in Chang'an City was done by the Secret Protector, and the purpose is twofold: one is to speed up the resurrection of Chiyou, and the other is to seize the artifact Juque. If you receive a letter, come to Songcheng north of Chang'an City to find me immediately. Shadow wrote in the letter.

"It's the Dark Protector again!" Bai Yunfei said angrily.

"Forget it, let's find the Shadow Convergence first and discuss countermeasures. ”

Bai Yunfei rushed all the way to Songcheng......

At this time, Songcheng has been completely eroded by the epidemic, and the streets are full of the stench of corpses.

"Yunfei!" the shadow jumped out of the rooftop.

"Shadow, is there a way to save these people. Bai Yunfei asked eagerly.