I thought as I made some potions using the usual reagents in the chemistry classroom, carefully prepared to cut the red thread and throw it in.

Before cutting, Shi Yueying and I were nervous at the same time, afraid that something terrible would happen again. How could I have thought that the red line, like an ordinary line, was easily broken by scissors, and the ordinary one was as if it was also dead with Sun Ying's death.

I tossed a small piece of red thread into the potion, tumbling up and down in the reagent as my hand shook. After a few minutes, I frowned and became surprised.

"What's wrong?" Shi Yueying became nervous.

"It's weird." I was puzzled and said, "The fibers made of this chemical fiber are not chemical dyes. ”

"It's not chemical, it's fibrous?" Shi Yueying was also stunned, her knowledge is also extensive, and only chemical dyes are easy to attach to chemical fiber materials. It is very difficult for natural dyes to penetrate chemical fiber materials like water to penetrate plastic.

"It's really a natural dye. Hey, weird, weird! Once again, I made a simple reagent to detect natural dyes, and this time the red on the red line still did not dissolve: "This red dye does not use common iron atoms, but rather some kind of plant." ”

This discovery was completely beyond my imagination.

"What do you mean by not iron atoms?" Yueying could still understand the previous sentence, but she was a little blind in the latter sentence.

"I know! I know! Suddenly, there was a crisp sound from the door of the chemistry classroom, which startled the two of us.

"Niuniu, you, why are you up?" Shi Yueying turned her head and saw a short figure standing at the dark doorway. The shadow was elongated by the glow of the midnight streetlights, and it was glaring. Niuniu was holding a cute doll, looking lazy that she hadn't woken up, and she kept rubbing her beautiful big eyes.

"I got up to pee, and I didn't see the two of you, so I thought that some or two adults must have run out with Niu Niu on their backs to play with children's inappropriate things. Hmph, I didn't expect to be caught by Niu Niu. Niu Niu said angrily. She walked up and was sandwiched between me and Shi Yueying.

I was speechless for a while, this little Lori is too precocious!

"People are small and big!" Shi Yueying scolded, and suddenly her face turned red, and she realized that her face was only a few centimeters away from me, and it seemed that as long as she pursed her lips, she could kiss me on the mouth. This guy secretly screams hateful, what a good opportunity!

I didn't notice the girl's strangeness and annoyance, so I rubbed Niuniu's little head: "How did you find me?" ”

"Hee-hee." Niuniu told the truth: "Brother Xiao Qiqi is very stubborn, Niuniu guess if you don't figure out what this red line is, you will definitely not be able to sleep at night." As a result, when I went downstairs to look for it, I almost caught the rape in bed. Hee-hee, Niu Niu is smart! ”

I laughed, "Keep telling the truth." ”

Niuniu pouted: "Ouch, little Qiqi brother, women have their own privacy." ”

Shi Yueying also understood, and laughed loudly: "Niuniu, I think you can't sleep alone, I'm afraid!" ”

Niuniu glared at her aunt and changed the topic strangely: "I know what Brother Qiqi thought of just now." At present, the natural dyes used in chemical fibers can no longer be found, and most of the natural dyes that have to be used in some specific places are mainly dye reagents containing hematite. However, plant dyes, if they do not use auxiliary mordants, can rarely successfully adhere to chemical fiber materials. ”

"Niu Niu's explanation is correct!" I nodded.

"That's a must, Niu Niu is amazing!" was praised, Niuniu immediately raised her little head proudly.

"The most puzzling thing is that there is no mordant used on this red line." As I spoke, I concocted a third reagent, in which the red thread still hadn't faded in the slightest. The reagent could not dissolve the dye in the thread, which also made me even more puzzled: "Without using mordant, the plant dye can be rigidly attached to the chemical fiber, and it will not fade even in the case of high acid and high alkali, and even I think that the red on this red line will never fade in any environment." It's an epic discovery in the dye industry! ”

"This kind of discovery is simply impossible." Shi Yueying still couldn't understand the hidden meaning of her words, but the six-year-old high-IQ little Lori understood it, she bit her fingers and thought about it, and then shook her head vigorously: "Human beings have been using natural dyes for tens of thousands of years. What kind of dye has not been found, let alone plant dyes. If there were such a dye, the manufacturers of high-end clothing would surely go crazy. At least, Niu Niu had never heard of this dye! ”

"yes, I haven't heard of it at all." I also shook my head slightly, the fact that I thought it was impossible was clearly placed under my nose in the form of physical evidence, and I sighed: "The dye on the red line is made of what plant it is, the equipment in this chemistry classroom can't be analyzed at all, I will let the courier send it to a national laboratory tomorrow for identification, if I know the origin of that plant, maybe I can know a little bit about the origin of the red line......

Speaking of which, I didn't say any more. In fact, even if you know the source of the red line, it is also difficult to explain what happened to Sun Ying.

What I care about the most is what Shi Yueying said not long ago. She thinks that the face of one of the people on the red cocoon belongs to the hunchbacked man lurking in the coffin shop in the strange photo.

Sun Ying, a person who can't get along with Shi Yueying, could it be that her death is really inextricably linked with the girl next to her? No matter how I think about it, I don't think it's very likely. Perhaps, Shi Yueying has been frightened and stressed too much recently, so she is wrong!

With Niuniu, she left the chemistry lab on the third floor and returned to the dormitory on the seventh floor. I've been sitting in the living room and can't sleep, it's midnight, and the nightlife outside the window is still vivid. I felt like an outsider in a trance, and I had an unreal feeling.

People who have lost their memories always think about a lot of messy things, so I poured a glass of red wine with a wry smile and drank it all. Originally, I wanted to be at peace with what I encountered, but it was actually not bad to marry Shi Yueying and have a child. There is a smart niece Niuniu with a lot of personality; There is a sister-in-law who doesn't talk much, but is very practical, Ms. Shi; There is also a gentle and virtuous Shi Yueying, who is obedient and considerate and obedient, although his head often makes mistakes, as his wife.

AA2705221