Now Xiao Ai's cognition of keys and books is already the maximum. If you want to know more about the mystery, you can only turn to Professor Lin for help.

Xiao Ai dialed Professor Lin's phone and asked him to meet him at the café across the street from the library.

In Xiao Ai's eyes, he is an amiable and knowledgeable old man. When Xiao Ai gently placed the "Book of Luban" in front of him, Professor Lin had a moment of surprise on his face, and then disappeared again in an instant, returning to normal.

Xiao Ai said uneasily: "Professor Lin, I don't know if I should ask one thing?" ”

Professor Lin shrugged his shoulders and said, "Miss Su, just ask, the old man must know everything and say everything......

Xiao Ai leaned forward slightly, approached Professor Lin, and said softly, "Did Fei'er have been researching a key from the tomb of the Marquis of Haidun before she died?" ”

When Professor Lin heard this, his brows furrowed, and there was a twitch on his face, "This matter...... How do you know? ”

Xiao Ai said with even more interest: "Professor Lin, I don't want to hide it from you, I have been investigating the cause of Fei'er's death recently. As far as I know, her death is related to this book, and I have another half of the key. ”

After saying that, Professor Lin's body tightened and became excited, but he immediately calmed down and said, "Do you have the other half?" That's great! Have you found her killer? ”

"Murderer...... I'm not sure ......, she had been researching keys during her lifetime. There are two keys to use in one. Xiao Ai said excitedly.

Professor Lin was half surprised and half delighted when he heard this, and his body shook slightly. His throat was a little dry, and he took a sip of coffee and asked, "Oh! I see...... Ever since she died, the key from the tomb of the Marquis of Hailun has been missing, I suspect ......"

Professor Lin paused, looked straight at Xiao Ai with his eyes, and said, "Fei'er's accident must have been done by an acquaintance around her, because that key has magical powers."

Whoever gets it has life and wealth, or the whole world!! The more Professor Lin spoke, the more excited he became, and his voice seemed to be louder.

Xiao Ai pondered for a moment, looked around and said, "Could it be her boyfriend?" There is something strange about him......"

Professor Lin couldn't help but be excited: "At the beginning of the year, Fei'er told me that she had made a major discovery, but she was not sure yet. She also said that when she finds the "Book of Luban", there will be results. Now that someone has been coveting her research, she feels very scared......"

"Then why don't you call the police?" Xiao Ai asked anxiously.

Professor Lin sighed: "I didn't realize that the situation would become like this at that time, so I wanted to use this book to explore one or two, and find some clues, hoping that the person who harmed Fei'er can be brought to justice." ”

Xiao Ai fixed his mind and said: "I think her boyfriend is very suspicious, and I don't know how to expose his crimes." ”

Professor Lin approached Xiao Ai's ear and whispered, "You can bring your half of the key and ask Zhou Yizhi to go to Fei'er's house, I have an ecstasy, as long as he drinks it, he can tell the truth." Then he will be revealed. ”

When Xiao Ai heard this, he was overjoyed and said, "It's a good way." Xiao Ai finally showed a rare smile.

Professor Lin held Xiao Ai's hands deeply and said, "I really have to thank you for doing so much for Fei'er." ”

Professor Lam burst into tears......

Xiao Ai said: "The day when the truth will be revealed is coming......"