As soon as Mo returned home, he couldn't wait to open the box. He hoped that the contents would help him decipher the truth, but when Mo Yantian took out all the objects inside one by one, he fell into confusion again. A button, a key that you don't know where to open, a note, that's all.

Mo Bitian picked up the button and looked at it carefully for a while, he had never seen this kind of button, the button was black, and there were no patterns and words on it, which made it difficult for Mo Bitian to guess the origin of this button. He was a little reluctant to put the button in the sunlight again and carefully observed it for a while, the button itself was not transparent, and it did not react much in the sunlight, it seemed to be just an ordinary button. But what if it was just a very ordinary button, Paul Weishenme wanted to give it to himself? Mo felt that things were not so simple, and there must be something unusual about this button. But what's out of the ordinary? Mo couldn't think of it for a while, Zuihou decided to put down the button first and look at the other two things.

Mo Zhitian picked up the key taken out of the box with his other hand. This is also a very ordinary key, which is a synthetic metal in terms of texture, but it is not a very rare metal synthesis, it is a very ordinary house or safe key. The key itself is silver, well crafted, and shimmers in the sunlight with a characteristic sparkle of metal. But knowing that these were useless, Mo still couldn't see the reason, so he had to put down the key and prepare to read the note that Paul had flowed down again. At this moment, he suddenly noticed that the handle of the key he had just taken was covered with a layer of black substance. Mo Beitian carefully touched the black substance on the key with his fingers, it was a black powder, Mo Beitian twisted the powder with two fingers, and it felt very delicate, and then he put the powder close to his nose and smelled it, and now he could conclude that this black powder was graphite. But where does this graphite come from?

Just when Mo was worried about the source of graphite, he inadvertently found that the finger he used to hold the button just now was stained with this graphite powder. Graphite comes from buttons! Mo Beitian hurriedly picked up the button again and looked at it, took out a knife from the bedroom and gently scraped a piece of material on the surface of the button, and then dipped his finger in it and put it in front of his nose to smell it, sure enough, the button is indeed made of graphite! Mo Beitian felt a little excited, but after thinking about it, he calmed down again, even if I knew what the button said, what was the use? Graphite doesn't mean anything!

Mo Beitian was a little annoyed, these things have no connection at all! What exactly is Paul trying to say to himself? Mo Yitian just thought of what to say, and suddenly thought of it, didn't there be a note that he hadn't read? The content of the note must be a clue!

Mo Bitian hurriedly opened the folded haode note, only to see that this paragraph was written on it:

"If you crack the little thing on your shirt, where does it come from? The treasures of the underground will lead you to a new path. Hercules and the descendants of Achilles have built great cities, and he beckons to you. Remember, remember XII! Nicky the host will show you the directions."

What does that mean? Don't you know that Paul Weishenme wants to use such a riddle to embarrass himself, and Weishenme can't tell himself the truth? Could it be that because it's a secret, someone else would have discovered it if it hadn't been riddled? Was Paul protecting his friend? Or is there something else going on? Mo couldn't think of it for the time being. It seems that we will only find out until we solve the puzzle Paul gave me.

When Mo thought of this, he immediately cheered up and began to study the riddles on the note that Paul had left him. The little thing on the shirt he said should be the buttons, which is not difficult. The button Paul was referring to must have been the one he had left for Mo Zhitian. So where does this button come from?

What is the treasure underground? Is it really a treasure or something? Treasure is usually gold, right? Only gold can be called an underground treasure, of course, there are many ores buried in the ground, gold, silver, copper, iron and diamonds are all treasures buried deep underground, right? Wait, Diamond Mo seems to know something. He was a little excited, yes, it should be right, it was graphite! Graphite is also a mineral deposit buried in the ground, and it is chemically allotropic with diamond! Since it is said that button graphite is made, then Paul should be referring to the origin of graphite!

Mo Bitian hurriedly took out the map of his home and searched carefully for a while, and then looked at the words on the note. "Nicky's master will show you the direction." Nikki is the name of the goddess of victory. His master is Athena, the goddess of wisdom, and what is related to Athena? Mo Bitian suddenly thought of the book he had taken from Mr. Situ again. Page 131, History of Pallas and the City of Athena Pallas! It was the city of Pallas that Nicky was pointing in. If you think about it this way, you can't be mistaken, according to Mr. Situ's book, there was a tragic "Battle of the River of Blood" before Pallas was founded, and this river of blood still flows outside Pallas. Local chronicles and most maps indicate that the "River of Blood" is a well-known graphite producing area. Because the formation of graphite requires high temperature, it is generally more common in metamorphic rock layers, and metamorphic rock layers are mostly distributed in areas rich in organic matter and obvious sedimentation. The formation of the "River of Blood" dates back millions of years. On both sides of the bank are dense woods and other plants, which were buried by sand and gravel after death, and large amounts of coal and graphite resources were formed by the sedimentation of rivers.

Now it seems that Paul meant to let Mo go to the "river of blood." There should be what Paul calls "treasures." Since this is the case, Mo Zhitian decided to set off immediately to the "Blood River" to find out.

Just as Mo was about to go to the "Blood River", the doorbell suddenly rang. Mo Yitian sat on a chair in the bedroom and quickly turned on the computer, and found several people in government uniforms standing outside the door through the camera placed at the gate. One of them was very familiar to him, "Enlarge and adjust the pixels", Mo Feitian commanded through voice control, and the camera at the door immediately magnified the original pixels and adjusted the lens to the angle that Mo Feitian needed. At this time, he saw that the familiar man was the fat man who sat in the interrogation room and didn't talk much. That's right, it's him, and the "S" badge on his chest won't be mistaken.

What are they doing at my house? Mo Zhitian felt that they were not good, maybe these people came to arrest him and go back. No, you can't be captured by them until you find the truth! Thinking of this, Mo Yitian hurriedly packed up the things that Paul had left for him, put them into the prepared haode backpack along with the books he found from Situ and Shijia, and then immediately got up from the chair and quickly ran out of the bedroom. He was too nervous to use the teleportation device and trotted all the way to the living room, at this time the mysterious people who had already rang the doorbell dozens of times stopped moving, and they began to shout outside: "Mr. Mo, please come out, we know that you are at home." If you cooperate, we won't hurt you. ”

Don't be amused, the ghost will believe your words, now I go out and take my life, so I won't fall into the net.

Don't think about it, I opened the door to the basement behind the living room, and there was a back door in the basement that led directly to the outside. Mo thought it was foolproof when he escaped through the back door. But he was wrong, and as soon as he opened the back door, he was hit on the head by several guns.