Probably, this is the reason for He Changgui's sudden disappearance.

But Chu Xian always felt that something was wrong.

If the murderer behind the scenes wanted to get He Changgui, he should have done it a long time ago, why did it drag on for several days, it happened to be when he went to find He Changgui, and the other party had an accident.

Could it be such a coincidence?

This doubt can't be solved for the time being, but Chu Xian didn't stop looking for He Changgui, although Chu Xian himself knew that in this case, the possibility of finding He Changgui was too small, but he still had to find it.

He Changgui's school, Chu Xian went to investigate as soon as possible, including the things left by He Changgui, Chu Xian also detained all in the name of the law enforcement team.

Not only that, Chu Xian also needs to know more about He Changgui.

Because of He Changgui's disappearance, it may be the murderer, but there is another possibility, that is, He Changgui is the murderer, and he has escaped.

It's not that there is no such possibility, so we need to take out all kinds of possibilities, verify them one by one, eliminate the impossible, and the rest is the only truth.

For this reason, Chu Xian wrote letters to Kong Qian, to Cui Huanzhi, and to the officials he knew, asking them to help inquire about He Changgui.

Within two days, the reply flew back like snowflakes.

In more than a dozen reply letters, Chu Xian had a relatively in-depth understanding of He Changgui through the side and his known cognition.

To put it simply, He Changgui has no skills.

Cui Huanzhi is an official of the Ministry of Officials, so it is easy to figure out He Changgui's official performance, and He Changgui's promotion, along the way, is all by slapping others.

Of course, it can't be said that He Changgui has no ability at all, and he still has relative ability, but he mainly relies on getting promoted by befriending officials.

Even this time he came to Tianyuan Academy for further study, He Changgui was able to come through a walking relationship. In fact, the officialdom of the Holy Dynasty is a behemoth, with tens of thousands of officials, and it is not surprising that there are indeed some people like He Changgui.

With this layer of understanding, it is unlikely that Chu Xian knows that He Changgui is the murderer of Kaoqing.

The reason is very simple, if it is such a person, how can he kill Kaoqing, and He Changgui's past is also very detailed, there is no dark place and unknown place, because those high-ranking officials who helped He Changgui in the past, this time Cui Huanzhi also checked it, and it can be said that this knowledge is reliable.

However, although it can basically be confirmed that He Changgui is not the murderer, it is not certain whether the other party has anything else to do with the murderer.

In addition, He Changgui's promotion along the way is not from a white family, he has more or less done some shady things, and the other party is not a good person.

Just using the handle to coerce other officials to help him, He Changgui has done this kind of thing, and he is good at it.

After having an understanding of He Changgui, Chu Xian focused on how He Changgui disappeared.

It is extremely unlikely that a student will be able to get out of the academy, even Chu Xian just used magic to wander around the academy at the beginning, and if he wants to leave, even Chu Xian can't do it.

And now in order to find He Changgui, he is almost three feet into the ground, how can He Changgui, a big living person, disappear like this?

In the next few days, the atmosphere in the inner courtyard can be described as solemn, and the law enforcement team has been investigating day and night, but there is still no result, whether it is the killing of Ka Qing or the accidental disappearance of He Changgui, there is no progress at all.

On the contrary, Chu Xian heard that the law enforcement team was stolen and lost something last night.

What was lost, Chu Xian didn't know, and there were few people in the law enforcement team who knew, Xu Yan definitely knew, but the other party probably wouldn't tell him.

So Chu Xian simply went directly to Mr. Ouyang.

Mr. Ouyang had already returned from Jingzhou, to be honest, although there were many Dao Immortals in the Academy, the identity of the enemy was unknown, so even if he cultivated to a high level, it was useless. Otherwise, if he knew who the murderer was, the other party would have to kneel in an instant, no matter how powerful he was, it would be absolutely impossible for him to resist in the future.

Mr. Ouyang is really capable, he asked Chu Xian to wait for a while, and then cast a spell to investigate with a clone, and in less than a cup of tea, Mr. Ouyang told Chu Xian that what the law enforcement team lost last night was a roster.

"Roster?" Chu Xian flashed his mind, and the secret path was broken.

"It's just that you lost a roster, why did your face become so ugly?" Mr. Ouyang couldn't understand and asked.

And where does Chu Xian have time to respond, he is thinking quickly at the moment.

Because if Chu Xian's guess is right, the lost roster must be the list of all demon or half-demon students in the academy that the law enforcement team has recently sorted out.

After all, the way of Kao's death was too similar to the spider demon murder that was rumored fifty years ago, whether it was unintentional or intentional, he would inevitably set his sights on the demon students of the academy.

Tianyuan Academy has been all-encompassing since ancient times, there is no discrimination, although most of the students are human races, but there are also students of the demon race and the witch race, although the number is not much, but it adds up to several thousand.

Because this incident may be related to the demon clan, it is normal for the law enforcement team to investigate the demon clan students in the academy as usual.

It's just that in Chu Xian's opinion, nine times out of ten this is a ploy of the murderer.

Killing Scythe Qing was deliberately exactly the same as the spider demon killing people fifty years ago, this is definitely not untargeted, it must have a purpose, but before, Chu Xian didn't figure out what the murderer's idea was, or rather, it was just to divert attention.

But now, hearing that the roster was lost, Chu Xian immediately reacted.

This is probably the most important purpose of the murderer.

At this moment, Chu Xian thought quickly, but Mr. Ouyang, who was a dignified Flying Feather Immortal cultivator next to him, was a little out of his power, although the immortals who had reached the level of Flying Feather Immortal had a strong divine thought, far surpassing Chu Xian, but this kind of thing could not replace the ability to deduce the case and judge the murderer, this thing had nothing to do with cultivation.

Chu Xian is in a hurry now.

From the very beginning, they are behind the murderer everywhere, to put it mildly, they are played by the other party between applause, after all, one is in the light and the other is in the dark, if you want to overtake the opponent and seize the opportunity, you can't follow the murderer's routine, otherwise, the farther and farther you go, you will never be able to catch up with each other.

Chu Xian took a deep breath, since he joined the Shi, he has broken many unsolved cases, tracked down many cunning murderers, no matter the mental city, they are all first-class, this time, Chu Xian knew that he had met a master, and Chu Xian was sure that the other party would soon achieve his goal, and at that time, people must have already thought of a way out, really missed the opportunity, and wanted to track it down, it was almost impossible.

So now is the last chance for Chu Xian.

In this case, the most taboo is to be led by the nose by the other party, and now the law enforcement team has made this mistake, thinking that they are extremely strong, but they are being played by the other party, without the slightest progress, of course, you can't blame the law enforcement team for being wasted, the opponent is too strong.

What Chu Xian has to do now is to simplify the complex, find a clue to track down, and not be disturbed by other things, as long as this clue can be found to the end, the murderer can definitely be found.

Chu Xian is still concerned about He Changgui.

Assuming that He Changgui is the murderer, this possibility is too small, and no matter the city, cultivation, character, or even purpose, this assumption is not supported. So retreat to the next best, will He Changgui be an accomplice?

Chu Xian believes that it is not very likely.

Judging from Chu Xian's understanding, He Changgui is a mercenary person, who is attached to the situation, and he is easy to leak the news if he doesn't have a door, and he is not the kind of strict and thoughtful person who comes to do things, if he is himself, he will not work together with people like He Changgui.

What's more, it's doing this kind of thing that will cost you your head if you're not careful.

The assumption of an accomplice does not seem to be valid.

Then, there is only one last possibility left, He Changgui knew something, and then was killed, this, Chu Xian from Cui Huan's letter later, it has also been determined that the official who is named in the official canon, if he dies, will see it in the official canon, this point, Cui Huanzhi has asked the immortal official who guards the official canon to confirm it.

The murderer killed He Changgui, definitely not for no reason, then, when he was drinking tea and chatting in his school house that day, He Changgui must have seen something that he shouldn't have seen and knew something that he shouldn't know, which led to his final killing.

But later, when he finally saw He Changgui, the other party didn't confide in anything, how can this be explained?

Chu Xian felt that he was about to grasp the key.

The murderer killed He Changgui, in Chu Xian's opinion, it was definitely not planned in advance, this was completely different from the situation of killing Kaoqing and Lord Jiang Luo.

So, why did the murderer kill He Changgui?

Thinking of He Changgui's means of being promoted all the way, Chu Xian suddenly realized.

What He Changgui is best at is climbing the flames and settling with others, which is his main means, but in the same way, He Changgui often does things that take people as a handle and blackmail benefits.

This is his nature, so, could it be that He Changgui saw something, took this thing, and went to blackmail the murderer for benefits, but the result was that he was smart but was mistaken by cleverness and lost his life?

This possibility is not impossible, on the contrary, it is very large.

Chu Xian once again immersed himself in the Shenhai Library, mirroring the scene of drinking tea and chatting when they visited him that day, and carefully observed it little by little.

Finally, Chu Xian made a discovery.

There were two people, and something was wrong.

One is naturally He Changgui, this person is looking left and right, obviously observing everyone, especially himself, after all, what he says is also a history of assassination, or a literati role model, according to He Changgui's character, it must be focused on observation, understand the favorite character, and then can further stutter.

He Changgui not only observed himself, but also observed other people, and what was surprising was that He Changgui watched Kaoqing more often.