Li Mu pondered for a while, found a piece of paper, and used the secret skills, and when he landed, various branches and patterns of all the primary skills appeared in his mind. However, only the words of the two skills, blacksmithing and carpentry, are lit, which seems to mean that the skill description "the recordable arcane level is lower than the current skill level". Li Mu only had two skills that had been upgraded to the intermediate level, and what he could use the secret skills to record was only the primary skills and recipes of these two skills.

Li Mu took a piece of paper, chose primary smelting, set the number of uses of the cheats to once, and confirmed it silently. In a flash of light, a few lines of words appeared on the paper. When you pick it up, you can see that it is some tricks about smelting skills. Li Mu put down the paper and returned to the system, and found that in the skill branch listed in the secret legend, the top of the primary smelting had turned red, and there was a cooling progress behind it, which lasted for ten days.

"And the skill cooldown?" Li Mu frowned, since the system was activated, this was the first time he had seen a cooldown skill. But if you think about it, it doesn't seem strange, if this secret skill hadn't cooled down, and he casually produced one hundred and eighty cheats, wouldn't Datang have jumped into the industrial age?

Li Mu guessed that the cooldown time of this skill should be related to the skill level and the number of times the cheats are used. The higher the level of cheats, the longer the cooldown time of the secret skill. The more cheats are used, the longer the cooldown of the Esoteric skill should be.

Li Mu was about to try again, when he suddenly saw the currency balance displayed in the system, and almost screamed. Just made this cheat, and it cost him ten taels of silver! Although he is not short of these ten taels now, he is also distressed, you must know that he has upgraded his carpentry skills from elementary to intermediate, which is almost ten taels, and now he just made a one-time cheats, and it costs ten taels, which is like eating money!

Li Mu was reluctant to try again, in a short period of time, he didn't plan to teach the skills to anyone, and there was no need for that, the fewer people in the system would, the more beneficial it would be to him.

But he was still curious about the effect of this cheat, Li Mu pondered for a while, and called Li Chongyi over. There are not many people around Li Mu who can be trusted, Li Chongyi is relatively reliable, and he is strong and strong, and he has learned smelting skills to help smelt ore. Besides, at most, it is just a primary smelting, and even if Li Chongyi betrays, the loss is not very large.

Li Chongyi entered the house, Li Mu closed the door, and handed over the secret book paper that recorded the primary smelting. When Li Chongyi saw the paper, he hurriedly waved his hand and said, "Boss, I can't read or write." ”

I didn't expect that!

Li Mu was a little depressed and put the paper on the table again. Li Chongyi glanced at it and said with a smile: "Boss, I recognize the picture." It seems to be iron. ”

"Figure?" Li Mu glanced at it, there were words on the paper, how could there be a picture! Stretched out his finger and said, "What do you see is the picture?" ”

"Hmm!" Li Chongyi nodded and said, "A person threw a stone into the furnace." ”

"Oh, that's interesting!" Li Mu was amazed, the things made by the system are different, the same piece of paper, the literate see the words, the illiterate see the picture, and the intelligent selection.

Li Mu handed the paper to Li Chongyi and said, "You read this picture again, you have learned it, and you can show it to me." ”

"Oh." Li Chongyi answered, picked up the paper and looked at it from the beginning. After looking at it for a while, suddenly my hands trembled, and the pieces of paper fell. Li Chongyi looked at the piece of paper on the ground and said embarrassedly: "Boss, my hands are heavy and torn." ”

Li Mu glanced at the piece of paper on the ground and asked, "Do you remember?" ”

"Well, I remember!"

"Do it!"

Li Chongyi nodded, turned around and went to tinker with the furnace. Li Mu secretly said in his heart, it also has an automatic destruction function, and it is really a cheat book that can only be used once.

Li Mu lay on the rocking chair and watched Li Chongyi busy with his work. Starting from lighting the stove, step by step, taking iron tongs, clamping the crucible, watering and quenching, separating impurities...... is somewhat different from when he uses his skills, it is not so smooth, and it seems a little clumsy. Li Mu knew in his heart that it must be because Li Chongyi's skill 'proficiency' was not enough to be like this. But this is not what Li Mu cares about, what he cares about most is whether Li Chongyi has a system in his body after learning this skill.

When the first furnace of ore was smelted, Li Mu checked it, and the iron ingots smelted by Li Chongyi were basically the same as those he had smelted using his skills. Li Mu took the iron ingot in his hand and checked it, and the amount was about the same.

"How does it feel?"

"I don't feel it!" Li Chongyi replied honestly. For Li Mu, smelting a furnace of ore is considered personal work, but for Li Chongyi, this is just a matter of moving his muscles and bones.

"Don't have anything more in your head?"

"Head?" Li Chongyi scratched the back of his head, a little confused, and said for a long time: "It's nothing, boss, there's something on my head?" ”

Li Mu hurriedly said: "I mean what is going on in your head, are you thinking about anything!" Think! Do you understand? ”

"Ahh Yes, yes, yes! Li Chongyi looked stunned and said, "Boss, when I was striking iron just now, I was thinking about what to eat this morning!" I want to eat meat! ”

“……”

Li Mu pointed to the door, Li Chongyi offended Li Mu somewhere, but he still put down the iron tongs in his hand and went out.

Li Mu was lying on the rocking chair, thinking secretly in his heart. He had basically figured out the effect of this secret skill by now. With this esoteric skill, he can teach the skills in the system to others.

The cheats made by the secret skills can be taught to the subject in a way that he can understand, regardless of whether he is literate or not. After this person learned it, what he made using skills was basically the same as what Li Mu made using his own skills. But he only has skills, no system, which is equivalent to learning a craft. But this method can't be applied in large quantities, firstly, because the skill has a cooldown, and secondly, it costs a lot to make a cheat, and it can only make a skill that is one level lower than your own skill level.

But even so, it is a very useful skill. Now it seems that it is useless, because the cheats that Li Mu can make only have two categories: primary forging and primary carpentry, which are of little value. But what if you wait until Li Mu raises the skill level to an advanced or even a master level? Li Mu is a senior carpenter, he can train several intermediate carpenters, and when he reaches the master level, he can train several senior carpenters, so it seems that this skill is simply priceless.

Li Mu was a little excited in his heart, the first question mark skill was so powerful, and he was even more looking forward to the second question mark skill. After the Esoteric skill is unlocked, there is an additional question mark icon below its icon, and the condition for unlocking it is that a skill is upgraded to a high level.