On a leisurely Saturday afternoon, Detective Charles receives a phone call from John, a famous professor at St. Tan Welfare University: "Hey, Char, are you there?"

Char snorted and said seriously: "I'm my friend, how can you think of me as a poor bastard." ”

Professor John said, "Indeed, there is something that you are free now? I want you to come to me at once." ”

Char frowned and said, "Now, I'm going to volunteer at the orphanage!"

Professor John Hahadaxiao got up and said, "Come on, I'm afraid there are only pretty striptease girls in your so-called 'orphanage', hahahaha." ”

Char was embarrassed for a moment, a little suspicious of his talent for deception, and said, "Okay! Is there any case that I need to investigate?"

Professor John said solemnly: "Yes, one of my former students was nominated for the Jobel Prize in Science this year, but when I confirmed his academic work, I found that he had copied a lot of other people's work. ”

Char laughed, "So you taught a liar? Hehe, what, now you want me to arrest him and go to prison?"

"No, no, no, my friend, he must be my student, and I can't bring him to ruin. I'm just hoping that he will come to his senses, but I can't get in touch with him right now, so I hope you can help me and help him. ”

Char nodded, "I will, I'll come now." Don't be sad, my friend. ”

Char put down the phone, kissed goodbye to his not-so-beautiful but gentle and considerate wife, and drove his old and broken car on the road.

It was about a two-hour drive out of the city, and another half-hour drive to Professor John's quarters, a luxurious mountainside villa, which was the only house in a mountainous area.

Char got out of the car, and the police car outside the gate made him feel a sense of ominous atmosphere, and went forward to inquire with the Belgian police officer who took the lead, and Char received the sad news that Professor John had been killed.

Since he was also an old acquaintance with the Belgian police officer, the Belgian police officer allowed Char to go upstairs with him to inspect, and in the study on the second floor, Professor John fell to the ground, the blood on his head had not completely dried up, and the bookshelf on the side was full of books that were now completely scattered on the ground.

"The time of death will not be more than half an hour. Char frowned.

The Belgian police officer slightly despised Char's teasing, adding: "The time to call the police is exactly half an hour from now. The professor died from being hit in the head with a sharp object. ”

Char was amazed, "Wait, I didn't see any cars going to the city on my way here." ”

The Belgian police officer said: "We don't have either, so the murderer is likely to be in this mountainous area, and I have asked my men to look for it, and I believe there will be a result." ”

Char said: "Then let's wait here! By the way, who called the police?" ”

"It's the old nanny here, Mrs. Sasha. The Belgian police officer waved for Mrs. Sasha to come up and asked, "By the way, what are you doing here?"

Charr told the Belgian police officer exactly what Professor John had told him over the phone.

The Belgian police officer clapped his hands and said: "Then this 'student' is a major suspect, and I will immediately investigate the list of nominees for this year's Jobel." ”

Char smiled bitterly: "I'm afraid you won't have anything to gain, you forgot that two years ago, the data room of the University of Fortham Welfare was on fire, and all the students' materials were burned." ”

The Belgian police officer stuck out his tongue and sighed in his heart that Char's memory was really good.

Mrs. Sasha was brought up.

Mrs. Sasha described: In the afternoon of this day, she was arranging flowers in the back garden as usual, and suddenly she heard a quarrel in the study on the second floor, because she did not remember that the professor had guests today, Mrs. Sasha went upstairs to see what was going on, and found that the door was locked, Mrs. Sasha hurriedly knocked on the door, but Professor John's cry for help came from inside, Mrs. Sasha took out the spare key in her pocket and opened the door, and found that there was a gangster fighting with the professor inside, the gangster was wearing a black coat, a large white mask, yellow sunglasses on his eyes, a black cap pressed very low, and a white glove on his hands, so he couldn't tell who he was from the outside。

Professor John suddenly shouted, "Run, rustle." All the evidence is in the green book in the first row of the shelves. ”

As soon as he finished speaking, the gangster grabbed the pen holder on the desk and gave it to the professor fiercely, and then pushed Mrs. Sasha out of the study, and when Mrs. Sasha opened the study again, the professor was already dead, the bookshelf was messed up, and the gangster ran away from the window.

Char was amazed: "'The evidence is in the green books?' Belgian police officer, did you find the book?"

The Belgian police officer was dejected: "Of course not, but the bookshelves are messed up, and I can't see any clues." ”

Char crouched down and looked through the books scattered on the floor, and asked curiously, "Mrs. Shasha, can you remember that book you lost?"

Mrs. Sasha said sadly, "No, forgive me for being stupid, I am illiterate, so I have no impression of the books on the shelves." ”

"Have you checked all the books on the ground?"

"I've checked it all, but I haven't found it. ”

"No book here is green!?"

The Belgian police officer smiled bitterly: "It has obviously been taken away by the gangsters, it seems that it will be difficult for us to avenge the professor." Because we can't find any evidence anymore. ”

Char smirked, "Don't worry, Belgian officer, we can't give up yet, can we?"

At this time, several cadet police officers brought back a young man, who was found in the upper reaches of the river, and found masks, gloves and other items in the river, all tied with stones. But the young man adamantly refused to admit that it was his.

The Belgian police officer tentatively asked, "Are you a student of Professor John?"

"Who? No, not at all. What's the matter, officer, I'm in a good mood and I'm here to hang out. As a result, these unfortunate things happened, and now I need you to give me an explanation. ”

The young man's name was Ka Lao, and his luggage was only a small leather bag.

The Belgian police officer said, "Can I see your purse?"

Ka Tao said in horror: "I'm afraid even if I say no, you'll still read it! ”

The Belgian police officer opened the purse, which contained some leisure equipment and a book called "Ancient Legends". (I'll admit I advertised.) The book is blue, so it shouldn't be the "evidence" in the professor's mouth. However, the Belgian police officer checked the inside of the book, but found nothing.

"What, can I leave now?"

The Belgian police officer nodded helplessly, and he turned around and was about to leave, when Detective Char suddenly grabbed him, looked up to the sky and said: "Professor John, you really deserve to be an excellent scientist and psychologist, although the gangsters killed you, but you yourself have avenged yourself." ”

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Dear readers, did you know that Charl saw the secret of the vanishing green book?(See the next chapter for the answer.) ）