Emperor Zhenwu nodded after hearing Uchiha Xuan's words. He naturally understood what Uchiha Xuan was going to do, so he agreed.

"How about I send you two thousand disciples this time?" asked Emperor Zhenwu.

"Can."

Emperor Zhenwu also has many disciples, but he cannot go too many people, after all, there is still a barrier to defend the surrounding areas.

Near Chang'an City, many demons have arrived quietly to prepare for the attack on Chang'an City.

"How could this inheritance be defended? Did they know our plan in advance?"

When we arrived at Chang'an City, we found that we were completely prepared, which was beyond their expectations.

Naturally, they didn't know that it was speculated by Xuanzang.

Their plans are very tight, and it is not easy to know their plans.

Although Chang'an City has now been defended, these demons have not retreated, and you have to continue attacking.

Now Chang'an City is not very effective in defending it. At most, it is just a little troublesome when attacking. A group of mortals want to resist these demons?

Besides, there are also their people in Chang'an City, and they can be taken down by working inside and outside.

Xuanzang took his disciples to walk around in Chang'an City, walking around every day in the alleys in Chang'an City, and didn't know what he was walking.

"Uncle Xuanzang, we have been here for many days. What are we looking for? Are we taking a walk here?" A monk came over and said to Xuanzang.

These hundreds of monks were divided into several groups, all walking around in Chang'an City, and every night they had to report the situation of Chang'an City to Xuanzang.

They didn't understand this matter in their hearts, and didn't know why Xuanzang did this.

"Our Chang'an City has a powerful emperor. Those ordinary demons can enter Chang'an City, but it is not easy for them to make trouble here. However, this time the demons want to attack Chang'an City, why do you think?" Xuanzang summoned everyone and asked them.

After hearing Xuanzang's words, these Buddhist disciples were slightly stunned, and they did not understand this.

"The reason why those demons are so brave and dare to attack here is definitely because they have traitors in Chang'an City. The imperial aura here can limit them. But if they come to attack inside and outside, how long do you think the imperial aura and our defense here can resist them?" Xuanzang looked at everyone and asked.

After hearing this, everyone suddenly realized it.

If these demons really come to attack with internal and external cooperation, it will be difficult for them to defend against.

"Then why don't we notify the prefect, but come here to find it ourselves? If we ask them to help us, the scale of this investigation will be very large and it will be much easier for us to find it." said a monk.

Xuanzang shook his head: "It is indeed easy to investigate this way, and it is also very large. But it is because the scale is too large that the demons hide and will never show up. As long as they hide it, it will be very difficult for us to investigate.

And we are walking around in Chang'an City and quietly investigating, the demons will not be vigilant about us. Even if they know that we do, they will not take us seriously. After all, we are just a group of monks, and there are so few people. In this way, they become vigilant, and that is our chance."

After hearing what Xuanzang said, everyone suddenly realized that Xuanzang was indeed very smart at a young age.

"Do you still have doubts about my plan?" Xuanzang asked with a smile.

Everyone shook their heads without any doubt.

"Since there is no doubt, then continue to act." Xuanzang said.

"But it's already evening."

"It's because it's night that we have to act. Those demons will definitely not be able to resist acting at night. We didn't act at night before, because the time is not yet. Now I think those demons should take action soon. We have to start acting at night, and we have to come in batches." Xuanzang explained to everyone.

These Buddhists naturally agreed with what Xuanzang said.

After several days of investigation, Xuanzang found some clues.

After Xuanzang's careful investigation and some speculations, he obtained a very important clue.

"The demons hidden in this Chang'an City have now become humans, and there is no big difference between us ordinary mortals. Even some cultivators cannot tell that they are demons. This demonic aura is hidden very deeply." Xuanzang said to everyone.

These disciples also nodded. They followed Xuanzang to investigate. They found many sneaky people, and also saw some mortals turning into demons. Before these people changed, they were no different from ordinary mortals, and even practitioners could not tell them. This is because their demonic energy was hidden through special methods.

"We can't tell that they are demons, so it's hard for their kind to distinguish between their own people and others, right?" Xuanzang asked at everyone again.

Everyone nodded. After these demons became mortals, it was difficult for other similar people to distinguish them, because there were many hidden demons in Chang'an City.

After these days of investigation, they have seen a lot.

"So if they want to contact each other, they must have their special codes or marks. Have you discovered it?" Xuanzang asked as he looked at everyone.

Everyone shook their heads. They just saw these changing demons, and did not see any marks or secret codes.

Xuanzang smiled faintly: "Dear brothers and junior brothers didn't see it. I did see some tricks. I found that these demons had a mark, that is, there was a red mole behind their right ear, and there were some demons. There was no mole on their ears, and there was a purple mole behind their left ears. That was their mark, but how they distinguished each other."

When everyone heard Xuanzang say this, they frowned slightly. How did Xuanzang see it?

This is a relatively secret place because few people pay attention to the back of the ears and are not easy to see.
Chapter completed!