I had a working meal from the Research Department with Vicky. The food was really not delicious, and I couldn't compare it with the delicious food in the college cafeteria. It can be said that it was a mush made of various nutrients. Vicky was used to it. There were people in the Research Department who were all workaholics and didn't care much about the extra enjoyment.

More importantly, the doctor stipulated that the staff of the research department should not go back and forth to the campus at will. There was a major incident before. A researcher entered the campus without cleaning after being exposed to an abnormality, which eventually led to three students suffering from bacteria carried by the abnormality and died. Since then, researchers must go through strict procedures for entering and leaving.

Vicky took Gehn to visit the project she recently studied, which was the wreckage of the branches left by the World Trees during the battle. The doctor hoped to find the key to open the World Tree seeds through them, but there was still no progress at all. When Vicky approached them, a faint green light would appear in these branches and new buds grew, but that was all.

After that, Guen returned to the academy, and the students who had sent the mission before also came back. Naile was a little depressed, as if he had complained about his father asking her to give up the mission in the end. When Guen saw her, she was still crazily beating the doll in the training ground to vent her anger.

"You have to lift your hand up a little. This will make it easier to exert force." Gehn walked to her, and the black blade in the hilt of the sword popped up, slashing on the doll's head.

"Are you okay? You were still half dead before." Naile sarcastically said as soon as he met, "You don't obey the command and run around, and the mentor Vermeer has reported it, so you will be punished."

"You don't have to irritate me... The principal is right to do that. He is worried that you will leave."

"I'm not angry!" Naile's electric blade swung for a week, cutting the doll next to him into two pieces.

"This sword is good, it tastes like your cousin." Gehn still remembers Fiona's neat swordsmanship. The two of them have known each other in the fiber world for so long that he has learned some of the swordsmanship of the Escar family.

"Do you know her?"

"It's earlier than knowing you. Why did they get separated from the Tianren family?" Gehn still didn't understand the relationship between these two families. If Eskal was divided because of some mistake, then why do they still have a place in the academy now? Moreover, their status is not low, and a large number of school directors and elite Guangrenzi are their people.

"There is no reason, I can only say that the concepts are not consistent. They don't want to be bound by the celestial identity. Don't think it's easy. When people all over the world treat you as the savior, you will be overwhelmed." Naile has cleared all the training dummies around him, and a group of new ones have been generated around her, but she has already relieved her and is too lazy to pay attention to them, and has dispelled the electric blade in her hand.

"That's quite similar to you."

"I'm not comparable to those guys." Naile patted the doll debris on his body, turned around and walked out of the training ground, "Come with me and take you to see something."

Naile looked mysterious and said nothing along the way. He led Gehn to a square that few people would go to. Several gray and white buildings stood on one side of the square. This area looked like a memorial hall, filled with some serious and boring school history content. Generally no one would be interested in these things. Perhaps even the senior sister Kassandra, who is so addicted to books, had never been here.

"Stop keeping it aside, why are you bringing me here?" Gehn couldn't see any reason. He was not impatient, but he made an appointment with his sister to pick up the stones. The sky was already dusk, and he didn't want to waste too much time.

"Do you still remember this piano?" Naile pointed to the mural at the entrance of the memorial hall. On it was an ancestor of the Esberen family. This mural was no longer the image of a horse-riding ranger, but a warrior wearing heavy armor. The harp seemed a little abrupt when he held it in his hand.

"He looks...not very much like that Nibelungen." Guen remembers the oil painting that Nale had shown him before, and they realized the new secret from that painting and song.

"Yes, he is the grandson of Nibelungen, my great-great-grandfather. At that time, the piano was still there, and it disappeared from the historical materials later." Nail led Gehn into the gray-white building. As she said, the piano appeared in the hands of many ancestors of Esberen and disappeared until it was about four hundred years ago.

"Traditions will always change, and many secrets in history have been lost, which is normal." Gehn shrugged.

"I also discovered something. These pianos are the same, and the reliefs are all fronts. You may not be able to see them... Look at this again." Naile took out another photo, which was still an oil painting. The edges of the picture had become blurred, and it looked even longer than the painting of Nibelongen.

The painting is a heroic woman, holding a sharp short knife in her hand, looking like a heroic witch hunter, but her clothes were a bit too luxurious, and her long coat and velvet scarf looked even more exaggerated than the opera actor. The knife she used was a bit strange, without a handle, as if she was holding it directly on the blade.

"Is this... a fist blade?" Gehn has only seen such unpractical fancy weapons in online games.

"This is the harp! Its sides are as sharp as a knife. Do you remember the ghoul I told you about? The one I killed by my ancestors, I have seen the incision in its spine, which is as smooth as a step."

"It's a bit strange for such a wound..."

"I thought it was left behind by several slashes, but now I think about it, it is probably caused by a weapon with multiple blades. Guess what it is?"

"It's the strings. The edges of the harp are as sharp as those of a knife, and the strings are also very sharp. If you cut them down, you will leave such a section." Gehn imagined that it was indeed the case.

"This is this, that piano is missing, so this secret is also lost. In other words, just find it back..." A faint smile appeared on Naile's face, and Gehn had already guessed what she wanted to say.

"Don't remember that one thing is one, Miss." Geen slapped his forehead, "Where are you going to find something that has been lost for more than four hundred years... If you could find it, your dad would have got it back long ago."

"Of course I just have clues." Naile hugged his hands and smiled, "This kind of thing is not something you can find. You need to pay attention to opportunities. I happened to encounter this opportunity. Guess what I found in that bastard Cotton's collection?"

"Don't tell me it's a treasure map."

"Look at this." Naile threw out a small white object.

Gehn took it into his hand, and before he could see it, he found that it was a bone-like thing. It was a spine of unknown creatures, two circles larger than humans. The incision on it was the same as what Nale said, and it was a wound left by the harp.

"This is taken from a specimen of Hu Yu Demon. Cotton's idiot obviously didn't see any mystery inside. There is no second weapon in the world, right?" Naile put his hands on his hips and looked proud. She was indignant because she could not participate in the battle. She accidentally discovered this while wandering around in Cotton's collection room.

"When did that?" Gehn played with this bone, but the traces of weathering were not heavy, and it should not be long.

"I'm not a specimen expert, but it's not more than fifty years at most. The person who killed the monster might be alive. The piano must have fallen into his hands. If you find that person, you can find the piano." Naile's reasoning was very smooth, and there was no big problem. Gehn had to be surprised when her observation became so detailed.

"Can you find out how this thing comes from? Why did Cotton collect this?"

"That guy collected everything, maybe he bought it from the black market. I also saw a specimen of a beautiful mermaid. The abnormal mermaid became extinct after the tower descended. That thing was priceless."

"The black market...that's not easy to check." Gehn scratched his head and said, "Unless you use Yinfeng's intelligence network, you are no longer a temporary agent now. They will not pay attention to you when you are a madam."

"So you're going to use it." Naile looked at Gehn and squinted his eyes, and the latter felt a frizzy on his back.

"Me? I don't have that ability."

"You have the ability to invade the academy's network, stop pretending." Naile's words were obviously not groundless. Geen's heart tightened. It seemed that something had happened to Sophia before... The matter was exposed, which was not a joke.

"What are you saying, for no reason."

"A piece of abnormal data has invaded the intranet from the library. Although it was not able to stop it, there were still traces that were found. After tracking, it was found that it was introduced by your college guide. What do you think?" Naile half-tempted and half-threatened and said, "You are very lucky. At that time, I happened to be the temporary agent. I suppressed this matter and let the Hidden Bee people erase the remaining evidence, but there may be a backup of this kind of thing?"

"You are just threatening me to help you?" Guen was a little unhappy, but he had no choice but to reveal Sophia's case, and he could not escape.

"Help me find out the person who hunted Hu Yu Demon. People who do this kind of work are usually mercenaries or bounty hunters. Hu Yu Demon is of great value in the black market, so it should still be found." Naile immediately gave a sweet date after a blow and said, "And, even if you don't have this, you will help me, right? We are friends."

"It should... be true." Gehn said reluctantly. If Naile did not threaten him, he might have answered decisively.

"A person like me thought he would never have friends in his life, and he was a civilian friend. I would never believe it a few years ago." Naile sighed.

"You're here again."
Chapter completed!