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Thinking that "friction and electricity" could enlighten the old man, Lu Chen planned to write down some of the understanding of water on the earth before leaving, and then attach some fantasy applications about water obtained from games and novels, hoping that the old man could get something from it, promote to the ninth order that he had always wanted to reach, and then walk out of the closed magic tower.

At this time, Lu Chen was no longer in the restaurant, and on top was a huge transparent crystal cover, which could directly see the starry sky at night, surrounded by a half-human wall, and the scenery of the forest could be seen at a glance, but it was night now, and the vision was not wide. There is no partition on the whole floor, and it is a large room.

"This is probably the top observatory. ”

Looking at the other furnishings, it seems to be a combination of a study, a bedroom, and a real room. There may be all sorts of records to be made, and there are stacks of thick sheets of paper on a large desk.

Lu Chen didn't waste any more time studying the difference between paper and pen and the earth, and he didn't care whether the words he wrote could be understood by the old man, but just wrote some basic common sense and ideas in his memory on the blank paper with his feelings. In a hurry, he didn't realize that he had written down various symbols that were different from Chinese characters.

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The old man came back in about an hour, and when he saw Lu Chen lying on his workbench and recording something, he didn't interrupt him, but walked behind him gently. At the same time, he remembered that he still had a letter of introduction to write.

But this look, the old man's eyes can't leave, it is obviously part of the application of water, the most eye-catching thing for him is "what happens if you hold a small water balloon and trap a person's head, or what happens if you turn into a hockey ball immediately after trapping your head." ”

And the next idea that led to the old man was even more dumbfounded: "Then if you can immediately freeze the water spells, will the vortex and waterspouts and other spells with centrifugal force and the like spray ice cubes or even ice picks in all directions?" ”

The former one seems very simple, but the old man knows that the requirements for control are very high, and no one will stand there stupidly and let you put the water balloon on your head, which is also the reason why it is habitually ignored by all mages, but the latter one is relatively much simpler, and it is very easy to imagine, as long as you release the vortex spell on yourself, and then apply a freezing spell. Although he did not understand what centrifugal force is.

The old man knew very well the magic power of whirlpools and waterspouts, that is, they relied on the power of rotation to kill and injure the enemy, and one can imagine how strong it would be if an ice pick was thrown from it, even if it was broken ice, it would be enough to kill people with low strength, and the release would be absolutely deadly on the battlefield, and the power could be at least one order higher.

Coming back from his imagination, the old man did not disturb Lu Chen, he knew that it was what Lu Chen was going to leave for him, and he was not in a hurry at this time, so he quietly walked to the side and wrote a letter to Lu Chen to bring to his vice president and student, who was also one of Lu Chen's senior brothers. Of course, the content is a little more than before, in addition to asking a few of them to take good care of Lu Chen, a little junior brother, but also asking them to be close to him more, humbly ask him for advice, and don't disclose his identity before he grows up, so as not to cause necessary trouble, etc.

Time, another hour passed, the old man had already finished writing the letter, and seeing that Lu Chen was still thinking intently and had no intention of stopping, he could only walk over and interrupt him.

"Little Lu Chen, that's enough, don't think about it anymore, your 'friction and electricity' plus these are enough for me, an old man, to study even when he reaches the underworld, time is running out, and I still have some things to explain to you." ”

"Ah, you're here, teacher. Is it that fast? Isn't it three hours? But I can't think of anything else. Lu Chen rubbed his temples and said with a little disbelief.

"Hehe, it's been more than two hours. Come, come here, stretch out your hand, you don't have magic, I'll help contract the space ring. ”

Lu Chen suddenly appeared, the space ring that was originally on his hand returned to the old man's hand, combined with the old man's words, he understood that the luggage that the teacher packed for him was in the space ring.

"This, teacher, you gave it to me, so what do you use?" Lu Chen really wanted it, but he was not too embarrassed, not to mention that the teacher was a law saint, and the space ring he used must be a very rare and precious item.

Lu Chen's reaction made the old man feel good again, he was indeed a little reluctant to use this space ring, although it was not infinitely space, but it was also ridiculously large, and it was no big problem to install this magic tower, but at his current level, the role of the space ring was no longer great.

A small number of potions and food, even if you add some daily necessities and spare equipment, you can't use one of the corners, and you are not an alchemist, a scroll master or something, you don't need to carry a lot of materials, and the magic is basically done in the magic tower, this huge space is more of a memorial for him, and now it is a good choice to give it as a gift to this magical student.

"Do you still need to worry about it, you forgot the space ring of that unlucky ghost of Jì Mohili, but you can't use him. By the way, you said before that you want to be an archer, the assassin's equipment is just right for you, I moved all the equipment in his space ring here, but it's a pity that the one he wore was smashed by lightning, but some other spare items in it are also good treasures, that is, you should be careful when you use it in the future, so as not to be seen. ”

"Well, I know, thank you, teacher. The old man said this, and Lu Chen happily accepted the teacher's space ring, and he also understood how dangerous it was to be recognized with the enemy's equipment.

After helping Lu Chen contract the space ring and teaching him how to use it, the old man repeatedly told Lu Chen when he was in danger, and then continued: "There are some scrolls in it, which are for your self-defense, but the teacher is not a scroll master, none of them are powerful, most of them are three, The fourth-order magic is accumulated when teaching the first few students, the color and the number of stars represent the attributes and levels, and then the name, you take the time to take a look, don't rush when you encounter danger, you must be proficient in using it before becoming stronger. ”

"Hmm. Teacher, are you really not going to leave this scepter?" The old man's concern made Lu Chen feel very impulsive to say the power of the scepter, but considering that he couldn't explain it and couldn't operate the scepter, he didn't say it in the end.

"No, the knowledge you left me is enough for me to think. After this time, I don't have the confidence that I can keep the artifact, and that the kingdom will keep it. I've already written this in the letter, don't you have to worry, no one knows that the artifact is not in my hands now, no one will take you as a target, and maybe you can borrow someone else's hand to open this magic tower as soon as possible, how to say that this tower is the best in the kingdom, so it's too wasteful to close it for me to use alone, hehe. ”

The old man was not worried at all that he would be trapped in the magic tower, and with what Lu Chen had left him, he was confident that he would unlock the closed magic tower after breaking through.

"Let's go, I'll send you out now. Twelve hours is only the maximum time limit, and the longer it drags on, the more uncertain it becomes. With that, the old man took the lead and walked towards the middle of this floor.

Lu Chen also felt that there was no need to say anything more, and followed behind the old man.

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On the ground was an obvious magic circle, which looked huge, but the small circle in the middle was only large enough for one person to stand.

After Lu Chen stood up, the old man recited the spell and moved the magic array.

Although he didn't know magic, looking at the old man's chanting time and the range of the magic array, Lu Chen knew that it would be more difficult to get out of the magic tower than he thought.

There was a sour feeling in my heart for no reason.,It feels like I'm going to say goodbye to this teacher who I've only known for one day.,The powerlessness and regret of not being able to save the girl in the dream were also drawn out.。

Like a gambling oath, Lu Chen shouted at the old man standing outside the magic array: "Teacher, I will definitely study hard and come back to see you as strong as possible." ”

The old man heard what Lu Chen meant, shook his hand, signaling him not to care, then smiled and stretched out three fingers, and made a gesture that he would go to him.

It won't be three months, let alone three days, Lu Chen easily understood what the old man meant, and the sadness of parting in his heart faded a lot, and then disappeared at the same time as the magic array lit up.

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At the edge of the Newcoren Forest, a dozen wagons formed a circle, and a bonfire burned vigorously in the middle, and a group of men with weapons stood guard at the seams of the carriages.

"Damn Ciel, didn't you say this edge of the forest is very safe, why are so many fire mastiffs running out now. ”

"Captain, you can't blame me for this, Newcollon Forest is notoriously safe, and the strongest thing here is the fourth-order fire mastiff beast. God knows why they ran out of the center of the forest, and probably all of them, and there were a dozen young beasts behind the trees over there. ”

"They look like they're just defending themselves, not really trying to fill our stomachs. I heard that this was the private domain of Ron Hikresfa, and perhaps something was growing in the forest, so these mastiffs had to take refuge in the periphery. ”

"Sharon, what you said is true or false, why haven't I heard of it?"

"Cut, who made you usually only interested in money and women, and never saw you care about the affairs of the kingdom, and you are the captain. ”

"Ciel, you kid wants to die, you dare to say this about me in front of Sharon, I won't pull your skin when I look back. ”

"Okay, don't make any noise, Sharon is right, everyone cheer up, they are all nocturnal monsters, and they have lost a batch, as long as we can hold on until dawn, we should be fine. ”

"Yes, Commander. ”

"Really, Captain?"

"Hesgau, you 'Monster' with only brute strength, you give me something to learn when you go back, otherwise I will remove you as the captain and replace it with Hill. ”

"Haha, thank you, Captain. ”

“...... Yes, Commander. ”

"Attention, they're going to attack again, get ready. ”

"Hehe, Sharon is really good, this can be seen, do you want to consider joining us when you go back, our regiment still lacks a deputy commander." ”

"Shut up, Hausko, they're coming, attack me. ”