An Feng did not even have the strength to complain! Simple? Do you know how many people have studied for decades but still could not draw a successful explosive talisman? Not to mention a super grade one! An Feng deeply felt that man and man could not be compared! After “Beating”an Feng, Yun chujiu hopped back to Tianyuan Academy. At the same time, Yin Haoyu also received a voice transmission talisman from his subordinate. “Fourth elder, Yun Chujiu has been secretly protected by the secret guards of the Temple of Immortals along the way. We didn’t have the chance to attack her.” Yin Haoyu gnashed his teeth in hatred. This wretched girl was really cunning. Moreover, he didn’t expect the temple of Immortals to attach so much importance to this wretched girl. They actually sent a secret guard to escort her. It seemed that he could only think of a way to kill her in Tianyuan Academy. However, this matter had to be carefully planned. He had to strive for a hit-and-run. On this day, the dry old man finally agreed to teach Yun chujiu how to refine the refined iron puppet. When Yun Chujiu heard the dry old man’s steps, her mouth twitched. “Master, you actually still want to use a furnace to refine it? Isn’t this almost the same as refining a weapon? You Can’t use wood to carve it, right?” “You Lazy Thing! can wood be harder than refined iron? Besides, can you use a spirit weapon if you don’t refine it? A puppet can! As long as you put spirit stones on it, it can attack the enemy.” “But, master, why do I feel that this puppet of yours doesn’t even know its master? It can only attack people in a fixed area.” The dry old man roared, “So what if it attacks people in a fixed area? Do you want to learn or not? If you don’t, then get lost!” “Master, why are you so stingy? Can’t I tell you what I think? Show me, and I’ll learn.”Yun chujiu saw that she had angered the old man, so she quickly smoothed her hair. Only then did the old man angrily start to refine the refined iron puppet. Yun chujiu yawned as she watched. It was really troublesome to make the refined iron puppet. First, the refined iron had to be melted into molten iron, then, it was poured into the pre-made mold. After the liquid refined iron cooled down, it had to be hammered continuously. Finally, the corresponding runes had to be drawn on the various parts of the puppet, all the runes were finally gathered in the abdomen of the puppet through the connecting runes. It could place several spirit stones inside, which was also the spiritual power of the puppet. “Master, this thing is similar to the formation disk. Why Don’t you just design something like a formation disk and put it in the abdomen of the puppet? That would be so simple.” The old man was stunned. That’s right, there were formation leaves on the formation disk. weren’t the various parts of the puppet similar to the formation leaves? The old man was stunned for a long time, then he excitedly danced. That’s right! What the little girl said made sense! If he could develop it, it would be a great innovation in the puppet technique. If it was successful, the production time of the puppet technique would be greatly shortened. The more the old man thought about it, the more excited he became. He said to Yun chujiu, “What you said makes sense. You Go back first. I’ll be in closed-door cultivation for two months. I’ll definitely be able to develop it.” Yun chujiu touched her nose. It turned out that her nonsense had hit the nail on the head? However, using fine iron to make a puppet was too strenuous. It would be great if it could be casually carved with wood. Although the dry old man said that the wood was not strong enough, she could add protective runes! Forget it, it was better to wait for the dry old man to develop it. It was better for her to draw more explosive runes. That Old Thing Yin Haoyu had not been making any movements recently. He might not be planning some big move. It was better for her to make some preparations.