The anger in Mo Guhan's eyes suddenly spread towards Yuehua with lightning speed, Yuehua stiffened, and seemed to be able to feel the "crackling" sound of anger sweeping over him.

When this moody man was furious, he was afraid that he would be able to burn within three miles of the surrounding area, and not a single grass would grow.

"The Empress is interested in this?"

Yuehua didn't dare to say yes, nor did she dare to say no, she trembled, she secretly sweated in her palms, strengthened her courage, gritted her teeth and said desperately: "The concubine body just suddenly remembered the jade bottle at the birthday banquet of Concubine Ling some time ago. ”

"What about the jade bottle? It has nothing to do with this matter. Mo Gu said coldly.

"The emperor didn't know that among all the colors, purple is the most difficult color, the process is complicated, the cost is expensive, so most of them are used to dye silk brocade, very little cotton cloth is made, and the common people can't afford to wear it. And the other party used purple cotton cloth to deliver messages, and there must be a reason for it. ”

"A woman's opinion!" Mo Guhan snorted coldly: "When it comes to military affairs, a word of gold, don't say that a piece of cotton cloth, even if it is gold, silver and jade, priceless treasures, it is worth it." ”

"But deliberately, that's unusual."

"What do you want to say?" Mo Guhan looked her up and down suspiciously, and there was already anger steaming.

"At the border of Xiliang, there is a kind of moss, and its juice is the best raw material for purple dyeing, with good colorability, high brightness, and no fading."

"The queen is teaching me how to dye cloth?" There was no patience in Mo Guhan's voice: "If you say one more nonsense, I will throw you out of here!" ”

Yuehua was dripping with cold sweat, knowing that Mo Guhan was temperamental and moody. Now he is in a rage, and turning his face is faster than turning a book.

"What the concubine wants to say is that maybe the other party is writing on the cloth with purple dye, so there is no trace of it."

Mo Guhan stared at her for a moment, and then turned around suspiciously and took the cotton cloth on the case to look at: "You mean, you can use lime water to change color and reveal it?" ”

Yuehua nodded: "The words written with fresh juice are not color-fixing, so they will quickly change color when exposed to lime water." The concubine's body has been put on the tip of her nose and smelled, and it does have a very light and faint smell of moss. The concubine often dyes the embroidery thread by herself, so she is very familiar with the taste. ”

Mo Guhan pondered for a moment, then turned around and ordered Rong Xiang, who was kneeling on the ground: "Fetch lime water for me!" Fast! ”

The lime was usually visible, and Rong Xiang got up quickly and ran out with a smoke, but in a moment he came in with a bowl of clear lime water, put it on the bookcase, and turned to cover the door.

Mo Guhan picked up the purple piece of cotton cloth, stretched it out and carefully spread it on the surface of the water. The three of them stared eagerly at the water, and the cotton cloth gradually became wet, and the blue handwriting really showed little by little!

"Hey...... Lock...... What does that mean? ”

On the cotton cloth, there are only two words, Yuehua distinguishes the handwriting, but she feels inexplicable and does not understand the meaning.

Mo Guhan was overjoyed, and grabbed Yuehua's hand, holding it tightly, a little excited: "This is half a word, and the other half of the secret is on this white cloth, only when the secrets of the two cloths are all analyzed, can we get complete information, otherwise it will be in vain." The other party is so cunning! In this way, even if the intelligence is intercepted by our army, we cannot find a way to completely crack it for a while, and the secret will not be easily leaked. ”

Rong Xiang was also so happy on the side that he almost danced with his hands: "The queen's mother's method is really useful, and even Shao Xiang's problem that he is at a loss can be solved." ”

Yuehua smiled humbly: "It's just that I just happen to understand this truth." ”

Mo Guhan picked up another piece of white cloth, frowned slightly, and looked at Yuehua with a little expectation: "It's just that this white cloth should definitely not be as simple as using lime water." ”

Yuehua shook her head; "It should be the same principle of color change, but the concubine can't think of any mystery in this white cotton cloth."

She took it in her hand, and also put it on the tip of her nose and sniffed lightly, and there was a sour breath that seemed to be absent. When I took it to the lamp and reflected it, there were slight yellow sweat-like traces, looming. It's just incoherent, illegible, and at a cursory glance, I just think it's dried sweat stains.

"There is a shortage of materials in the barracks, and what is used must be ordinary things, so that even if the traitor is just an ordinary soldier, it is easy to come by. It's like this moss, everywhere. Mo Guhan thought to himself, frowned and said to himself: "What can be seen everywhere in the barracks is nothing more than rice soup, vegetable soup, generals can find tea, liquor, we have tried everything, and we will always find a way." ”

"It's just a strip of cloth, and if it's stained, it's wasted, so how can you try it the same?"

Mo Guhan turned around, and took out a ball of purple and white cloth from the mud gold bottle of the Duobao Pavilion on the side: "It's all here, four purple and four white." ”

Yuehua was a little dumbfounded: "How can there be so many?" ”

Mo Guhan sneered: "We have not been able to solve the mystery, so that the other party is unscrupulous and communicates frequently. I am afraid that there are more captured in the army, and this is only a part of it when it comes to me. ”

Yuehua felt a pang in her heart: "Frequent correspondence, aren't they afraid that this spy will reveal his identity?" ”

"Shun Teng touched the melon, and he has arrested three spies one after another, but none of them have been interrogated at all. I suspect that these three people are just scapegoats, and the traitor must be the general in the army, and he is familiar with the turmoil in the entire military camp, so he got the news several times in advance, and he passed the blame to others, and he was out of his shell. ”

Mo Guhan faced Yuehua, and gradually let down his guard, and analyzed his guesses to Yuehua one by one: "I was also angry, and I ordered Chang Zhiyi to change several generals at the border pass, but that person was still lurking in the barracks, which made me really helpless. ”

Yuehua also hated this kind of collaborator the most, and said indignantly: "My father told me before his death that although the people of Xiliang are brave and good at fighting, they don't know the art of war and like brute warfare, so it is not enough to worry. But over the years, it has been a long time coming. It turned out that there were such traitors in the army who sought glory. ”

"This is what I have been worried about these days, but I can't know the situation in the border barracks well, otherwise I will definitely let the spy have nothing to hide. I hate that I can't really drive the expedition in person, and I will take a while with the army of Xiliang, capture the spies, raise the prestige of our Chang'an country, retreat thousands of miles from the enemy, and force them back to the north of the desert. ”

The two of them shared the same hatred and hatred, full of anger, and they were all gearing up, hoping that they could really have wings and go to Xiliang to taste what they wanted.

Mo Guhan was even more indignant, and with a heavy wave of his arm as he spoke, he suddenly knocked over the tea cup in his hand, and the tea directly stained the cloth strip in front of him.

Yuehua hurriedly reached out and picked up the strips of cloth, but it was already a step too late, and most of the strips of cloth were wet.

Although it is already old information, it has no value, but it is also a pity. Yuehua picked out all the half-wet ones, but found that the gray-black font appeared on the white wet cloth strip in her hand.

"Your Majesty, look!"

Yuehua excitedly handed the strip of cloth to Mo Guhan: "It's tea!" The handwriting can be shown with tea. The concubine understands that this white cloth strip is written with white sauerkraut juice, and it turns black when it comes to tea! ”

The two couldn't help but be excited, and ordered Rongxiang to change the tea again, and dipped the latest strip of cloth into it, and sure enough, the gray-black handwriting appeared: "Time... Yang, together is the lock of the sun! The other party wants to attack Suoyang Pass directly at the right time! ”

Mo Guhan slammed his fist on the palm of his hand: "What I expected is really good, the spy must be a general in the army." The people of Xiliang are clearly passing on information, asking the spies to cooperate with each other and cooperate with their battle plan! Tomorrow, the day after tomorrow at the latest, the defeat information of the attack on Suoyang Pass will be rushed to my desk for 800 miles. ”

Yuehua understands the truth of accepting it when she sees it, this mystery has been solved, and she should stop talking about it, stand by the side with her hands and say no more.

"This person eats the king's fortune, and does not think about the worries of the king, but collaborates with the enemy and betrays the country, and harms the lives of many soldiers in my Chang'an!"

Mo Guhan instructed Rong Xiang in a deep voice: "Rong Xiang, pass on my will, and send the cracked method to General Li at the border pass for 800 miles as soon as possible." Mi Xin ordered him to stand still for the time being, and once he intercepted the enemy's intelligence again, he would plan and go all out to annihilate his Xiliang army. And we must dig up this thief and divide his five horses into corpses to set an example! ”

Rong Xiang was also excited, glanced at Yuehua who was silent on the side with admiration, and immediately turned around and went down to deliver the decree.

"Wait!"

Yuehua was entangled for a moment, and saw that Rong Xiang had already stepped out of the imperial study, and once again decided to make a risky move, desperate!

If you don't say a word, it is difficult to recover it.