“Put your brain together and let everyone think about where to start.”
Su Xinguang said, "I know of some special liquids that can hide writing at room temperature, and when heated, the writing will appear."
Su Xinyang continued, "There is also a plant whose juice will reveal writing when it is exposed to cold, but the writing will be hidden under normal circumstances. This plant is called Sophora japonica. In addition, there are some special minerals mixed together to make pigments that also have this effect."
"Brother is right. Some things will only appear when they come into contact with water."
As the two brothers spoke of their methods, Su's mother's eyes lit up, and she felt that there was hope of cracking the treasure map.
"Then let's give it a try."
"OK."
Su Yin felt that these methods might not have much hope, but since there were these means, it was possible that the people who made the treasure in the previous dynasty did the opposite and used these, or the people who made the treasure thought that no one else knew the secret.
Give it a try after all, it’s free.
The first step is to roast it over fire.
"Will this burn the treasure map?" Su's mother was a little worried.
Others were also worried that if it broke, it would be a disaster.
Su Yin said, "Since it manifests when exposed to heat, there's no need to roast it over a fire. Just put it next to the brazier. When the temperature is high, if it really manifests when exposed to heat, it will naturally come out."
"Yes, yes, I almost got it wrong."
It is winter, but it is not the coldest time yet. Some wealthy families have already started burning charcoal and keeping warm, but ordinary people will never set up a brazier until they can no longer bear it.
It just so happened that Su Yin's family had plenty of money, so they bought some high-quality smokeless charcoal. After winter came, they started to make a fire in the house.
This is ready-made, so there is no need to get a brazier specially.
They placed the first treasure map next to the brazier. Su's mother was worried that these old men would be clumsy and damage the treasure map, so she watched it personally, fearing that sparks would damage the treasure map.
After waiting for a while, Su's mother felt that the temperature on the treasure map was very high, but there was no change on the treasure map.
"Yinyin, come and take a look. Isn't the temperature still too low? Why hasn't it changed at all?"
Su Yin touched it and felt the temperature, which was high enough.
If it was visible when exposed to heat, there would be at least some changes now, but there are no changes on the treasure map now.
"It shouldn't be due to heat."
Su Xinyang said, "Then change to ice and give it a try."
I brought back the always available ice cubes from the kitchen.
Because the previous map had been heated, another map was used this time.
Still no response.
"Could it be water?"
The Su family looked at each other.
Su Xiaozhong said, "Let's give it a try."
When it comes to water, it is impossible to put the treasure map in water, but use a wet cloth to gently cover the entire surface of the treasure map. If there is not enough water, add some more. If there is a change, it is this method, then you can be bolder and spray it.
If you open it wide all at once and pour a whole basin of water on it, you would only dare to do so if you have fully mastered the decryption code.
The third treasure map used water, but it still didn't work.
"Is there any other way?" Su's mother looked at the knowledgeable father and son.
The father and his two sons looked at each other, unable to figure out what was going on for a moment.
Su Yin stared at the four treasure maps. As she looked at them, an idea suddenly occurred to her. "Is there a possibility?"
The four people in the room looked at Su Yin.
"Look at these four maps. Let's make a bold assumption. For example, this one uses fire, this one uses water, this one uses ice, and the last one uses water, fire, and ice in order. What if we decompose them one by one and reveal them one by one?"
The father and his two sons understood this idea instantly.
Su Xinguang said, "There is also a possibility that these four maps must use the last method. After all of them are put into battle, they will be decomposed in order. First water, then ice, and finally fire; or maybe first ice, then fire, and finally water."
Su Xiaozhong nodded, "So there are six ways to crack it."
Su Xinyang then spoke up, "There is another possibility. These four maps require three types of decomposition in sequence, but the order of each type is different. For example, this one requires water, fire, and ice first. The second one requires ice, fire, and water. The third one requires fire, ice, and water."
Su's mother just watched the four of them chattering there. All she heard was "water, fire, ice," which sounded very complicated.
"Let's give it a try."
"Well, let's try the first one first. If the first one works, then it will be much easier to deduce the rest."
"right."
Next, the four people had clear division of labor, and each person had a clear division of labor. Each person took a treasure map and followed the assigned experimental methods in turn.
Su's mother plays a supporting role, going wherever she is needed.
Although it was winter, everyone in the house was feeling extremely hot, with beads of sweat appearing on everyone's forehead.
Suddenly, Su Xinyang shouted, "Yes, there is a change."
The four of them looked towards Su Xinyang and saw that the treasure map in his hand began to fade from its original color, revealing the hidden base painting. After the top layer of painting faded away, a complete map was revealed.
Su Xiaozhong was already prepared and copied the painting as soon as possible.
"What's your order?"
"Water, ice, and fire." Su Xinyang said.
Su Yin and Su Xinguang first tried my sorting on other maps, but they found that it was not the right one at all.
Then we can rule out the first one Su Yin mentioned, and we can also rule out the one Su Xinguang mentioned before, leaving only the one Su Xinyang mentioned last.
Each map has a different sort order. Only after finding the true sort code of each map can the map be revealed.
Now that we have a clear direction, the next three maps will be easy to deal with.
"It's out." Su Yin handed the revealed map in her hand to her father and asked him to copy it as quickly as possible.
This is to prevent the real treasure map from disappearing.
Some perverted hiding methods will only be revealed once and then disappear completely.
You only have one chance to see it.
The time may be half an hour, or perhaps an hour.
In short, it only appears once, and when the time is up, it disappears completely.
If you encounter this situation, it will be too late to cry. In order to prevent this phenomenon, the sooner you copy it, the better.
Su Xiaozhong was concentrating on copying the treasure map.
Su's mother helped with the grinding.
Su Yin said to her two brothers, "My order is fire, water, and ice."
Next time the two of them try the order, they can eliminate this group.
Soon Su Xinguang also cracked the third treasure map.
"My order is ice, fire, and water."
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