There were a lot of things in the Black Vine Sutra's mind, and even if Tang Cheng had successfully copied three fifteen-second memory fragments from the Black Vine Sutra's mind, he couldn't copy all of them at all. Tang Cheng, who had already used up his share of the memory copying skill that day, quietly let go of the left hand that had been clasping the other party's shoulder blade, and then asked a few more irrelevant questions before Shi Shiran left the interrogation room.

"How?" Zhang Jianghe was still studying the list, and seeing that Tang Cheng's expression didn't look like he was troubled, he asked Tang Cheng with some expectation in his heart. Tang Cheng didn't answer Zhang Jianghe immediately, but first picked up the cigarette on the table and lit one, and then squinted and chuckled in Zhang Jianghe's expectant gaze. Seeing this, Zhang Jianghe only froze slightly, and then laughed along.

After getting along with Tang Cheng for almost a year, Zhang Jianghe has a certain understanding of Tang Cheng's character, and the smile on Tang Cheng's face has been seen many times, and it is all after the action is successful. For Zhang Jianghe, Tang Cheng's smile at the moment was a kind of affirmation, so he laughed along. "To unravel this list, it doesn't have to be so troublesome, this thing is still hiding something somewhere else, as long as the two things are put together, the secret language format will be cracked."

What Tang Cheng said at this moment was naturally a fragment of memory that he had copied from Kurotto Jingji's mind, and he already knew where Kurotto Jingji had hidden another thing. "Okay, that's great!" Knowing that Tang Cheng already had a way to unravel the secret list, Zhang Jianghe couldn't help but be overjoyed, although he didn't know the content of this secret list, but Zhang Jianghe knew that this was a good opportunity for himself.

Zhang Jianghe didn't know the content of the secret list, but Tang Cheng had already learned through the copied memory fragments that the people on this list were all Japanese deep divers who began to secretly deploy into Sichuan after the 918 Incident. In 1931, when the 918 incident broke out, almost six years have passed, and the deep divers who were arranged by the Japanese in Sichuan six years ago should have been lurking in all walks of life in Sichuan.

As soon as he thought of this, Tang Cheng's brows were already faintly furrowed, because he knew that Kurotto Jingji was only one of the many deep diver starters, and there were less than 15 people on the list of deep divers in his hand, if there were still deep diver starters like Heiteng Jingji in Chongqing City, the consequences would be serious. Tang Cheng now somewhat understands why Chongqing was continuously bombed by Japanese planes during the Anti-Japanese War, just because there were too many betrayers in Chongqing who forgot their ancestors and did things for the Japanese, if it were not for them to take the initiative to provide ground guidance and related intelligence for the Japanese aircraft, why Chongqing would have been bombed so badly in the Anti-Japanese War.

But now it's different, Tang Cheng still has family and friends in the city, and he will never allow the tragedy to happen again. Although there was no way to stop the bombing of Japanese planes, Tang Cheng was absolutely capable of eliminating the traitors and scum who provided ground guidance for the Japanese in the city. Even if he could save one more person, Tang Cheng was willing, not to mention that his family was also in the city.

Tang Cheng volunteered to find another thing that Hei Teng Jinger hid, while Zhang Jianghe continued to stay in the barracks and wait for Tang Cheng's return. "Is this a caliper?" The things Tang Cheng brought back made Zhang Jianghe confused, because what Tang Cheng took out was clearly a vernier caliper commonly used by factory technicians, but after Zhang Jianghe took it and looked at it carefully, he immediately found something suspicious.

"This is what the target is hiding, and I've been thinking about it on the way back, and it turns out that the scale on this caliper is different from the normal caliper." The exclamation that Zhang Jianghe made just now made Tang Cheng see that Zhang Jianghe had also found the difference between this caliper, so without waiting for Zhang Jianghe to speak, Tang Cheng first pointed out the difference between this caliper.

"Not only are the scales different, but if you look closely, the scales on this caliper are simply disorderly, except for the scale number labeling in a step-by-step manner, and even the two adjacent scales on it are different in length." Tang Cheng then pointed out the second difference of this caliper, Zhang Jiang and Wen Yan looked at it carefully, and sure enough, the scale on this caliper looked like a toy, and the vernier caliper used in a serious factory would never make such a mistake.

"But what does this caliper have to do with the list? Is it possible to use this caliper to read this list of secret words? Tang Cheng, who already knew how to use calipers in his heart, pretended not to know anything at this time, and just used himself to reveal the truth to Zhang Jianghe little by little. Tang Cheng's self-talk really reminded Zhang Jianghe, and he immediately leaned over the table with a caliper, but after fiddling for a while, he never found the right way.

Tang Cheng was anxious in his eyes, and said in his heart that your old man is missing an arm, how can you use the caliper while adjusting the scale of the caliper. "By the way, before the target fainted, he was still muttering 30 and pi, uncle, do you think this has something to do with how to use this thing?" Zhang Jianghe's efforts were fruitless, so Tang Cheng had to pretend to use the mouth of Heiteng Jingji to leak the heavenly secret to Zhang Jianghe.

"30 and pi?" Before joining the army, Zhang Jianghe had been in private school for a few years, where would he know what pi was! With these two words in his mouth, Zhang Jianghe was already in a hurry, Tang Cheng had no choice but to secretly think about what kind of excuse he should use this time to mention Zhang Jianghe again. Zhang Jianghe lay on the table, fiddling with the caliper in his hand against the list of secret words, but he didn't know the correct way to use the caliper, so naturally he couldn't find any answer.

"Uncle, I'll try it!" A quarter of an hour later, Tang Cheng, who finally couldn't bear it anymore, reached out and took the caliper from Zhang Jianghe's hand, followed Zhang Jianghe's appearance just now, and leaned over to look at the list of secret words on the table. "Uncle, I counted the words on this piece of paper, there are 450 words in total. There is no punctuation, and we don't know how to break the sentence into paragraphs, and the goal is 30 at the end, I think it is better to directly divide these 450 words into 15 paragraphs according to each of the 30 words. ”

As he spoke, Tang Cheng took a pen and paper in his hand, and copied the 450 words on the secret list on another piece of paper according to 30 words per line. Zhang Jianghe didn't stop Tang Cheng, but Tang Cheng re-copied the content in sections, and Zhang Jianghe still couldn't understand it until Tang Cheng picked up the caliper again. "When I was in middle school, my school teacher used to teach that pi is a mathematical constant that is prevalent in mathematics and physics."

Tang Cheng said that the mathematical constant, Zhang Jianghe was confused about it, but after Tang Cheng said that he probably remembered part of pi, Zhang Jianghe finally came to his senses. "This pi is actually the ratio of the circumference to the diameter of the circle, it is an irrational number, and it has the property of infinite non-cyclic properties." Tang Cheng had no way to explain to Zhang Jianghe what irrational numbers and infinite non-cyclic properties were, because Zhang Jianghe did not teach these things at all in the private school he attended.

The most commonly used approximation of pi is 3.14, and the ten-decimal place of pi 3.141592654 is enough to cope with the general calculation, but this is not what Tang Cheng will tell Zhang Jianghe for a while, what he will tell Zhang Jianghe is the fifteen-digit pi. Looking at the fifteen Arabic numerals that Tang Cheng had written under the paper, Zhang Jianghe didn't understand what these numbers had to do with this secret list.

Tang Cheng didn't bother to explain too much to Zhang Jianghe now, but according to the memory fragments he copied from Heiteng Jingji's mind, he began to use the caliper to mark the words corresponding to the caliper scale numbers one by one in the fifteen paragraphs of text that he had re-copied. Zhang Jianghe didn't understand what Tang Cheng was doing at first, but after Tang Cheng used a caliper to mark out the content of the fifteen paragraphs of text one by one according to a certain law, he finally understood.

"No! You still can't make sense of what you marked with calipers? The words that Tang Cheng marked out with calipers were re-copied by Tang Cheng on new paper, but no matter whether Tang Cheng rearranged them with fifteen words per row or the original thirty words per row, the final reading seemed to be the donkey's lips and the horse's mouth. Zhang Jianghe, who was anxious, didn't know that Tang Cheng's move was intentional at all, because he was worried that if he helped Zhang Jianghe find the correct answer at one time, it would attract Zhang Jianghe's suspicion afterwards.

After several experiments that were doomed to fail, Tang Cheng, who seemed to have an epiphany, slapped his head and immediately re-copied the marked content again. "Uncle, you see, we have marked out half of the original 450 words. I have now rearranged them in their original order, fifteen words per row, and then re-annotated them from these new contents with the most commonly used approximation of 3.14 for pi. ”

Tang Cheng used pi for the second time, marking the content from the new content, and did not continue to use calipers, but directly selected five words from the fifteen characters in the first row according to the law of three, one, and four. Zhang Jianghe looked at the five words that Tang Cheng had copied on another piece of paper, and couldn't help but have a burst of ecstasy in his eyes, it turned out that Tang Cheng's method worked, because a name appeared in those five words.