Mu Yu did not return to the mountain, he had been in the academy for three days.

Because of the stationing of Bai Lang and Ju Wenxing, the dark shadows in the dark did not seem to dare to act rashly, and no one in the school had an accident in the past few days. In fact, Mu Yu also felt strange, that black shadow was so fast, it seemed that it could not be a human by killing people. The bright claws and the practice of digging out the heart are not something that humans can do at all, but the demon beast does not have such a high level of intelligence, and the only one who can do this is -

Demon Clan!

Mu Yu didn't dare to be sure about this, because even if the demon clan evolved into a human being, it would more or less retain some of the characteristics of demon beasts, and they would definitely be noticed when they entered the academy. The most important thing is that the demon clan is said to have been extinct thousands of years ago, and those demon clans in Fulong Mountain have not evolved completely at all, and they are just tools controlled by the Youmeng demon clan. With their kind of intelligence, they couldn't have done such a thing at an academy.

This black shadow seems to be quite familiar with the academy, so many cultivators don't want to kill, but choose the disciples of the Qingsong Sect and the Jiuhua Sect, it seems that it is intentional.

Bai Lang has made no progress in investigating Xiaohu's death in the past few days, and Ju Wenxing has not found the murderer. But both of them were mainstays in the sect, and they had more important things to do, so they soon left separately.

Ju Wenxing evacuated all the disciples of the Jiuhua Sect from the academy in case of accidents, while Bai Lang still let the two disciples stay to deal with the remaining trivial matters of the academy.

Mu Yu knew that the black shadow would not stop, maybe he was waiting for the opportunity, and Bai Lang leaving the academy to let the two disciples stay was the best time. Mu Yu planned to go to the Green Pine Sect's annex at night to find out if he could find the mysterious black shadow.

Mu Yu didn't know why he wanted to track down this mysterious black shadow, it stands to reason that this matter had nothing to do with him, he could just sit back and wait to see who wanted to provoke the conflict between the Qingsong faction and the Jiuhua faction. It's just that he happened to be in the same room as the black shadow that night, and he fought with the other party, but he didn't even see what the other party looked like, which made him a little curious.

Now he wanted to find his master, but he didn't know where to start, so he simply found something to do.

At night, Mu Yu found a place where no one was around, and then hid in the trees. There are a lot of trees in the school, which provides a lot of convenience for Mu Yu. When passing by the gate of the gray disciple's courtyard, Mu Yu found that there was an obvious cultivator who was embarrassed by a gray disciple.

The gray disciple was submissive, and his face was full of flattery.

"I look down on you gray disciples the most, even if you don't have the talent to cultivate, it's so slow for you to do something!" This was a young man with a somewhat pale face, his face was full of arrogance, and his eyes were full of contempt when he looked at the gray disciple.

"Okay, Senior Brother Lin, don't always have something to do to embarrass the gray disciple. Let's hurry back, senior brother is waiting for us!" said another young man with a Chinese face next to him.

"They were originally called by us as servants!" Senior Brother Lin kicked the gray disciple and left with the young man with the national face.

Mu Yu sighed in the trees, the gray disciples of the academy will always be angry with the cultivators, and many cultivators look down on the gray disciples, this has become a routine. He really wanted to go out and teach that Senior Brother Lin a lesson, but he thought that he had another purpose at night, so he held back. He entered the courtyard of the Green Pine Sect with the help of a tree on the wall of the annex and lurked in the tree.

He had some expectations for this black shadow, where was this black shadow sacred? Will it appear at night? Bai Lang left the academy, this is a good time to assassinate those two disciples of the Green Song Sect!

The moonlight was hazy, and the buildings of the school seemed to be covered with a silver veil, quiet and peaceful, with only a few lights flickering, and no one thought that anything bloody would happen here.

The night was getting deeper, the evening breeze was blowing, and the lights were still on in the rooms of the two disciples of the Qingsong Sect, they hadn't come out since Mu Yu came, they should have been meditating and cultivating inside, and they didn't even make a sound.

Mu Yu nested in the tree for a night, and the grass on the ground was his eyes, as long as the black shadow appeared, he would inevitably cross the grass, and Mu Yu would be able to find out.

However, this night was uneventful, no one came to look for the bad luck of the two disciples of the Green Pine Sect, and the black shadow did not appear. Mu Yugan waited all night, but there was no result, which made him a little disappointed. When the sun rose, Bai Lang suddenly pushed open the door and walked out, his expression a little tired.

"It seems that the murderer was not fooled, you guys clean up, we are going back to the mountain. Bai Lang said towards the house.

Mu Yu was stunned, this guy didn't leave! Dare to love Bai Lang deliberately created the illusion that he had left the academy, and wanted to lure the snake out of the hole, which Mu Yu didn't even notice when he stayed outside all night.

It's a pity that the black shadow seems to have already seen through Bai Lang's tricks, and he was not fooled, and he didn't show up last night.

Mu Yu yawned, left the green pine sect's courtyard with the help of trees, and walked towards his residence. He was sleepy from the lack of anything from last night, and he needed to catch up on his sleep. During the day, many cultivators came and went, and the black shadow would not start.

"Senior brother, have you seen Senior Brother Lin?"

Two disciples who didn't know what sect came out side by side from the front corner early in the morning, and one of the young men asked. That young man Mu Yu saw him last night, with a Chinese face, and the Senior Brother Lin in his mouth was the one who embarrassed the gray disciple last night, but that Senior Brother Lin was not with him now, and it was a strange man who was with him.

"No, didn't he go somewhere, did he come back last night?" said another, older man.

"He came back with me last night, and I saw him when I got up in the middle of the night to relieve myself, but I woke up in the early hours of the morning with a gust of wind and I didn't see him. He was sleeping in the same room as me!"

"It's really troublesome! Where did you run away, knowing that you were going back today. ”

The two of them were a little angry at Senior Brother Lin's farewell, and they didn't care about Mu Yu, they just passed by Mu Yu.

And Mu Yu frowned, Senior Brother Lin, who bullied the gray disciple last night, is missing?

Mu Yu suddenly remembered one thing, the black shadow attacked Xiaohu that day because Xiaohu forced three gray female disciples with good looks to accompany the bed, and there were four people in the room at that time except for Mu Yu, why did the black shadow kill Xiaohu alone, but let go of the three gray disciples?

When the disciples of the Jiuhua Sect died, Mu Yu also went to inquire about the situation the next day, and listened to the surrounding discussions that Tu Panshan and the others let the gray disciples heal, and a gray disciple had something wrong, so he was deprived of an arm by Tu Panshan and the others, and then Tu Panshan and the others were killed?

Last night, I saw that Senior Brother Lin, who was a little pale, making things difficult for the gray disciple for no reason, and then Senior Brother Lin disappeared in the morning?

Is all this just a coincidence, or is someone angry for the gray disciple?

Mu Yu felt as if he had been deceived by something, he had always thought that the black shadow who assassinated the disciples of the Jiuhua Sect and the Qingsong Sect should be someone who deliberately provoked sectarian conflicts, but he never thought of other possibilities.

If someone is not accustomed to seeing cultivators bullying gray disciples, and comes out to kill these people for gray disciples, is it possible that this assumption can also be true?

"It's hard to say, that Senior Brother Lin has no evidence that he was killed. Mu Yu denied his speculation, and this speculation was untenable.

None of the people in the cultivation realm can afford to look down on the gray disciples, who would be willing to stand up for the gray disciples? Maybe if Deacon Xun was still there, he might defend these gray disciples, but Deacon Xun had already been killed by Xiaohu, and even if he was lucky enough to live, Deacon Xun would not have the ability to kill the cultivators. He was just a gray disciple, with extremely poor talent and qualifications, and it was impossible for him to have the ability to kill people.

Could it be that someone from a gray disciple came across a chance to become a cultivator, and then came to take revenge on those who bullied the gray disciples?

Mu Yu remembered Gu Yitian, he was also a gray disciple, and he was lucky to be accepted as an apprentice by Boyang Daoren. He is a physical cultivator, and his strength is much stronger than that of the cultivators of other sects. With his character, if he had done these things, it would have been possible. However, Gu Yitian doesn't like to do sneaky things, he is relatively simple-minded and will not secretly do black things, so Gu Yitian is not very suspicious.

Having said that, if that black shadow was standing up for the gray disciple, then he must be in the academy, otherwise how would he know who was bullying the gray disciple?

There are more or less people in the academy who bully the gray disciples every day, except for the deaths of Tu Panshan and Xiaohu and others, the disciples of other sects have not heard of anyone killed or missing.

"Wait! Killed and missing?"

Mu Yu patted his head, the school is a post station in the cultivation realm of the Moyun Mountain Range, people come and go every day, who has time to care about who is missing. Even if they were missing, it would only be if they had left the academy, and who would care about the other cultivators except for the people from the same sect who would go to find them? If the missing person was a disciple of a slightly weaker sect, it was not worth mentioning at all.

But Xiaohu of the Qingsong faction and Tupanshan of the Jiuhua faction are different, and their deaths will definitely cause a sensation. In other words, people may be missing or killed every day at the school, but no one cares.

For example, what if this missing Senior Brother Lin didn't leave the academy by himself, but was killed for bullying the gray disciple? His death wouldn't have caused as much of a sensation as Xiaohu and Tu Panshan.

In other words, is it possible that many cultivators in the academy often disappear mysteriously, but it is only because of the special identities of Xiaohu and Tu Panshan that this matter has attracted everyone's attention?

Mu Yu thought about it carefully, who would do such a thing? Is it really just to kill a cultivator just to vent his anger for the gray disciple?

Mu Yu cheered up and prepared to test his idea.

There is only one way to know the truth!