We will start this task after finishing yesterday's harmony piano task and the main line of Chapter 4. There is a battle in this task, and it takes twelve physical values to complete it all. After completing all the contents of this task, we can get an ordinary meow doll and a reward of 50 Bao Tong. In this task, we need to repair three screens of Cao Zhi, during which we will have a lot of knowledge about pigments. If we don't know them, there will be some trouble. First, we enter Cao Zhi's dream, and then talk to Cao Zhi, who will tell us that his screen needs to be repaired. After the conversation, we interact with three screens in the room, and then we can investigate and get relevant information. After the investigation, we talked with Cao Zhi again, and then found a writing brush on the table in front of the right screen. We picked it up and dipped it in some ink. Then we color the middle and right screens. Here we paint the stone in the middle picture black, and the picture on the right is to paint the box in the picture black. After finishing these two paintings, we will get some raw materials for pigments. Then we groped in the room and found three grinding discs on the ground, next to the table and next to the screen. Find three pieces and go to the cabinet next to the left screen. You can use tools to repair the grinding disc. After the restoration, we can find a mother-of-pearl beside it, and then use the restored millstone again to process the raw materials obtained before into pigments. After that, we will pick up the malachite on Cao Zhi's floor, and then put the prepared pigment on the small table next to the rightmost screen in front of Cao Zhi. Then dip in the ochre pigment on Cao Zhi's desk and color the rightmost screen. Here we are going to paint the kettle on the screen ochre. Then dip cinnabar in front of Cao Zhi, color the picture on the far right, and paint the fire in the picture red. Then go to the middle of the room and fill the kettle with water, then go back to the table next to the screen on the right and put the charcoal and kettle on the ground next to the table. Then we dip in the paint just placed on the table on the right and color the screen in the middle. Here, we should color the mountain on the picture, and then we can get the gamboge paste. We can cook gamboge pigment by putting gamboge paste into the kettle just placed. Then we put the gamboge pigment in the bowl on the right table, dip it with a brush, and then color the leftmost screen. Colour the flowers on Zhen Ji's clothes here. Then use a millstone to make malachite into green pigment, put it in the bowl in front of Cao Zhi, dip it with a brush, and color the picture in the middle. Here, the ground in the screen should be painted green. Go back to the kettle, boil Liao and red and blue flowers into pigments respectively, put them in the bowl on the right, and then dip them in crimson to give the face color of the picture on the left. Finally, dip in the cyanine pigment and color the rest of the left screen, and the screen can be repaired. After that, the demon phantom will appear. We will defeat the Demon Phantom, and we will be able to complete all the tasks of Hua Xu Silk.