As soon as the morning dawned, Tianyi followed Lei Zhentian to start a busy day. Tianyi was mostly assigned to do some work to promote fire and take materials, there are a lot of materials here, if he didn't memorize those many materials the day before, this job is really difficult for him to do. However, after this day, through comparison with the book, I have memorized all kinds of materials, that is, how to use them, and the properties of the materials are almost touched.

Towards evening, Lei Zhen Heavenly Destiny Heavenly Leaning took a piece of carbon essence from the wooden barrel. Tianyi walked to the wooden barrel and saw a piece of carbon essence soaked in the wooden barrel, so he picked up the iron clamp and prepared to scoop it up, but unexpectedly, after the iron clamp was stretched into the wooden barrel, it became soft, like noodles, which was really insightful.

Seeing this scene, the second hammer laughed and said, "That thing has to be fished with a wooden clip, this is the master's spirit night, even if the carbon essence is soaked for a long time, it will become soft, not to mention mortal iron." Tianyi couldn't help but wonder, "Then how is this spirit night concocted?" ”

The second hammer looked at him and lamented, "I'm afraid no one knows about this except the master, and I don't know either." ”

Since he didn't find it at the second hammer, Tianyi was not disappointed, and picked up the charcoal essence in the wooden barrel with a wooden clip and headed in the direction of Lei Zhentian.

Lei Zhentian took the carbon crystal, put it on the iron felt, and clanged and beat it. Looking at Lei Zhentian's movements, Tianyi was even more surprised, the book said that the charcoal essence was strong and fragile, and it should not be beaten, but seeing Lei Zhentian beating like thunder, the action was like flowing water, and the shape of the charcoal essence changed and changed, and it was folded and forged repeatedly but there was no appearance of breaking at all. After a while, a piece of charcoal was forged into the shape of a flying sword, and the whole body was pitch black. Then he put the flying sword into the wooden barrel that had been prepared on the side, and sank into the liquid in the barrel without making any sound.

Tianyi looked at it intently, and this purple sword pattern was actually the formation map that should have been carved on it, and the skill of leaving the formation pattern on it by folding and forging the sword pattern was simply amazing.

Tianyi opened his mouth and stammered, pointed at the flying sword, and stammered, "Master, master, this, ...... this?"

Lei Zhentian's face was indifferent, "Yes, it's the formation diagram." ”

"But master, what's the difference between this forged formation and the ordinary depiction?"

Lei Zhentian's face remained unchanged, and he still said lightly, "It's no difference." ”

Tianyi wanted to laugh but didn't dare, thinking that this makes no difference, what are you trying so hard for. Lei Zhentian changed his words and asked Tianyi rhetorically, "Do you know how many formation diagrams can be carved at most with an ordinary spiritual weapon?"

Tianyi didn't think about it, "Due to the limitations of the Great Dao of Heaven and Earth, nine is the extreme, at most nine, so the high-level formation map is extremely valuable." ”

Lei Zhentian's eyes showed a hint of appreciation, "This forging method is refined to the fullest, and the number of ninety-nine can be imprinted on the spiritual weapon." ”

Tianyi's eyes widened and he muttered, "Ninety-nine-eighty-one array diagrams!"

Lei Zhentian put down the flying sword, his eyes showed a soft color, he looked at the sky, and his face was solemn, "This method is called the forging array diagram, there are nine layers, each layer of nine diagrams, it is created by my ancestors, cultivation and its difficulties, even my ancestors have only practiced to the fifth layer of the realm, and I am limited to qualifications, I have reached the third layer of the realm many years ago, and it is difficult to advance from now on, I am afraid that there is no hope for the fourth layer in his life." Tianyi, you are willing to worship me as a teacher and practice this method. ”

Tianyi's face was solemn, and his eyes showed a firm look. He fell to his knees and knocked his head three times. "The master is above, please accept the apprentice's worship. ”