He Qingqing looked at the letter in front of Chu Yang before, Chu Yang saw her red eyes, and he deliberately glanced at the letter twice, but he could only see the back, and could not see the content of the letter, but because of this, Chu Yang was very sure that the back of the letter he saw before was very clean, and there was nothing at all, and these graphics like roads, mountains, and water suddenly appeared on the back of the envelope.

"Show it to me!" Chu Yang took the letter paper from He Qingqing's hand, but when he took the letter paper, he was surprised to find that the pattern of the map on the back of the letter paper was disappearing rapidly, and finally it was all gone.

"How could this be?" He Qingqing also saw the process of the disappearance of the map, and looked at Chu Yang with a puzzled expression and asked.

"I don't know. Chu Yang frowned, he really couldn't understand why when he held this letterhead, the pattern on the back suddenly disappeared, but when Sister Police Flower just took it, the pattern suddenly appeared.

"Then what now?" He Qingqing was immediately anxious, she was worried that the map on the back of the letter paper was a clue left by her mother, a map that she wanted to find something, maybe it had something to do with her mother's disappearance, and now the map on the letter paper disappeared inexplicably, how could she not be in a hurry.

"Sister Police Flower, don't be in a hurry first, you can take the letter and take a look. Chu Yang said, handed the letter back to He Qingqing, and after He Qingqing took the letter, the pattern on the back of the letter soon appeared again.

"This, what the hell is going on?" He Qingqing was stunned, and when he was holding the letterhead, the map suddenly appeared again.

"Sister Police Flower, give me your hand!" Chu Yang said, directly grabbed He Qingqing's hand, and suddenly felt a hot feeling coming from his palm, the temperature on He Qingqing's palm was much higher than the temperature on her palm, but the temperature on her body was normal, this should be the result of her cultivation of Haoyang Divine Skill.

"Your hands are so cold!" He Qingqing said as he looked at Chu Yang.

"Sister Police Flower, it's not that my hands are cold, it's that the temperature on your hands is higher than that of ordinary people, this should be the result of your cultivation of Haoyang Divine Skill, which has caused the temperature of your hands to rise, and once you use this kung fu, the temperature of your entire body will rise, and the skin of your body will become bright red like fire!" Chu Yang explained.

"Is it like this?" He Qingqing put her hand on her cheek and tried it, sure enough, the temperature on her hand was very high, but her hand didn't feel the temperature high at all, just like usual: "That's really the case." ”

That explains it. Chu Yang said lightly.

"Explain what?" He Qingqing asked puzzled.

"Of course, it's to explain why the map on the back of the letter paper only appears when it's in your hand, this should be what method your mother used, only when you learn the Haoyang magic skill and pick up the letter, because the temperature of your palm is very high, so the map will appear!" Chu Yang speculated.

"How do you know that's the case?" He Qingqing asked puzzled.

"Similar plots have been staged in movies, and the temperature needs to be higher for the hidden text and graphics on the paper to be revealed," Chu Yang said.

"What you said makes sense, when I didn't practice Haoyang Divine Skill before, it is true that the map did not appear!" He Qingqing nodded and said, it seems that the plot in the movie is not all deceitful.

"I guess your mother should have deliberately arranged it this way, so that after you learned the Haoyang Divine Skill, you would explore that place by yourself, and the things hidden in that place should be your mother's birthday gift to you. Chu Yang said.

"Well, you said it was a birthday present from my mother, but my mother didn't mention it to me. He Qingqing said, if according to what Chu Yang said, all this was a birthday gift arranged by his mother, then why didn't his mother tell him about it?

"Didn't you say before, your mother said that you will know when you are an adult, she was supposed to wait until you are an adult to tell you to know, but what happened later interrupted her plan. Chu Yang said.

He Qingqing thought of the sudden disappearance of his parents, it must be because they suddenly disappeared, so he didn't have time to tell himself all this.

If there is no Chu Yang, then she is afraid that she will not know this secret for the rest of her life, thinking that all this is very likely to be arranged by her mother, then she must go to find the place on the map, where there is very likely to be something left by her mother.

"Chu Yang, I'm going to look for the place on this map, my mother must have left something in that place. He Qingqing looked at Chu Yang with a serious face and said.

"Do you know which place this is a map?" Chu Yang asked.

"I don't know!" He Qingqing looked down at the map, then shook his head, this map is very simple, you can only see that mountains, rivers, roads, there is no text description at all, I don't know which place is drawn on the map.

"Sister Police Flower, do you have a local map of Tiandu at home?" Chu Yang stared at the map for a long time and said suddenly.

"Yes, what do you want a map for?" He Qingqing asked with a puzzled look at Chu Yang.

"Maybe this map is drawn on the terrain of Tiandu City, let's make sure first, the map left by your mother should not be so difficult to find!" Chu Yang said, He Qingqing heard it, his mother's purpose was to let herself find that place, it shouldn't be too difficult, so he immediately found the map, Chu Yang took it and compared it, there are many mountains and rivers in Tiandu, and it is impossible to determine which mountain or river is drawn on the map, but this starting point is more distinctive.

"Sister Police Flower, it turns out that the starting point of this map is your house, let's start from your house now and follow the map to find it. Chu Yang said.

Knowing where to start is much simpler, just start from the starting point and follow the path drawn on the map, you will definitely find the final place.

The two set off from He Qingqing's house, followed the guidance of the road on the map along the way, and walked not far before they found that the road marked on the map was different from the one in reality, and there was no way ahead.

"What's going on, are we wrong. Isn't the starting point my home?" He Qingqing wondered.

"I understand that this map was drawn many years ago, and now the face of the city has changed, and the roads have changed. Chu Yang thought for a moment and finally thought of this.

"What should we do, how else can we find it?" He Qingqing frowned, very embarrassed.

"Although so many years have passed, the road on the map is no longer in line with reality, but the approximate direction distance is still accurate, this map should be drawn according to the scale of the old map, the error is not large, we just follow the route on the map, whether there is a road or not, just keep walking!" Chu Yang said.

He Qingqing nodded, followed Chu Yang and continued to walk according to the guidance on the map, and when they had no way, they would find a way to bypass it, and if it didn't work, they would find a way to pass through.

Along the way, the two passed through the subway, parks, cemeteries, and mansions, and finally saw the waterhole and hill on the map!