Ye Ying twisted the fine phosphorus powder little by little, and said, "If it is a powder that naturally falls off on the stone wall of the cave, then the size particles should be irregular, and it is impossible to be so delicate and uniform." If people don't know what they can't do, it is impossible to leave no trace at all. ”

Xuanyuan Haochen was shocked, wasn't he? The traces left by the formation mage of the Great War Sect Rank could actually be found by her only general? He also walked over to look at the stone wall with her, and where she scraped off the white scale powder, he couldn't see anything unusual, and he had to scrape off a little phosphorus powder in the same way, and he was knocked off by Ye Ying: "Don't move." ”

Xuanyuan Haochen was aggrieved: "I didn't move. ”

Ye Ying glanced at him: "This is a trace that the formation has not been wiped clean, if they want to lay out this formation in concealment, they must integrate the materials with the original environment of the cave, which also means that it is difficult to wipe it clean afterwards." In fact, it was not easy for the Great War Sect Formation mage to achieve this level, the traces of these phosphorus powders were very faint, almost none, and they were very mixed with the original ones on the stone walls of the cave. Look here," Ye Ying said, pointing to the place where he had just scraped off the scales, "These phosphorus powders are different from the ones I have in my hands, they are the original phosphorus powder on the stone wall, and they are also very fine, but irregular. Moreover, the phosphorus powder used in those formations was covered, even if the Great War Sect Formation Mage came over by himself, he might not be able to tell the difference. ”

Xuanyuan Haochen looked in the direction of her finger with a confused expression, and couldn't see the difference between the two phosphorous powders at all: "Really fake?

Ye Ying carefully put the phosphorus powder on his fingertips into a jade bottle, and scraped off a little phosphorus powder naturally generated on the stone wall from the stone wall on the side and put it into another jade bottle: "This is physical evidence. It's normal for you to not see it, since that formation mage has the courage to calculate you, of course he has to have some real material. However, if you make a curved mirror out of a material such as ice or glass, and zoom in on these two phosphor powders, you can see the difference. ”

"What is a curved mirror?" Xuanyuan Haochen was confused again.

"It's just a little acrobatic art that is not taken seriously. Ye Ying said lightly. She had read a lot of books since she was a great illusionist in her previous life, and she had also studied some of the strange tricks that were despised by spiritual practitioners, including periscopes, curved mirrors, and many other gadgets. Don't look at these things as inconspicuous, they can really come in handy at a critical moment.

Xuanyuan Haochen looked at her like a fairy, and felt that this girl was simply amazing, obviously she was just a general, but her way of pointing out the country was like she was going to trample on the Great War Sect under her feet.

He remembered another question: "No, why is your eyesight so good, how can you notice the difference between these phosphorus powders? You don't have a curved mirror in your hand now." ”

"Don't forget I'm an illusionist. Ye Ying said. She is an illusionist, and her observation is already meticulous, plus she has received the Star Great Quenching Technique in the Star Seal Space, and her five senses such as eyesight, ear, and smell have been greatly strengthened, which is far from being comparable to ordinary people.

She put away the two jade bottles containing phosphorus powder, raised her hand, and a thin layer of pale golden-brown petals condensed on her fingertips, and soon flew towards the stone wall of the entire cave, covering the stone wall of the cave and disappearing.