How to Save a Life (Will ByersXreader) (stXreader) COMPLETED

Y/n's POV::
I waited for two long days. I didn't tell Kali anything. Not about Jane coming or anything. When i got back though, she asked me why I was so drained. I told her that I was just practicing really hard and accidentally transported a rock to hit my head.
During the two days, I trained. Hard. I took everything Kali taught me and put it to work. I thought about how badly I wanted a friend. Or the anger at Dr. Brenner for killing my mother. I thought and concentrated on every mean thing in this world, and it showed through my abilities. I could transport things a lot faster now, and even change not only color, but brightness and darkness too. I was really happy and was ready for Jane to arrive. My dreams still continued in the Upside Down. Darkness surrounded me and that horrible monster too. One night, though I saw another monster. It was huge and in the sky. It looked spider-like and it wanted me. It wanted me to kill. Every night I woke up in a pool of sweat and blood running down my nose and ears. I've taken so many showers lately. So many.
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She came. I saw her in the Darkness again on a bus. Me and Kali were upstairs. She was giving me a pep talk because of our last mission (the one where I hesitated and we barely got away. Oh and BTW- Kali got pissed.).
"Y/n. I was once like you. Always hesitant about the kills. But as soon as I noticed, I got tougher. I realized that these people needed to pay for their sins to us. Experiments. They need to feel the pain too." She looked away.
"I hate them. I hate everyone of those ass-holes. They stole our lives away from us y/n! They need to pay." Kali said.
I nodded, but I still didn't understand. These were people too. They had lives. Plus, what if they were forced into it? I only know of one person in the world who would. Dr. Bren-
We heard Axel shouting at someone down stairs. I got up and slowly walked down the stairs. The girl turned around and I saw Eleven.
I ran up to her and embraced her. The others looked around in confusion.
"Its okay guys. Kali. This is our sister, Jane."
"How did you find us?" She said in a pressing tone. Jane looked a little scared. I remembered how hard it was getting used to Kali. She would take my powers instead of me.
"Kali. It doesn't matter how she found us. It only matters that she's with us." I said.
Jane held up a newspaper article. It had my face on it.
"I found y/n like this. I reached through the Darkness and found her. Just like Mama said to do." Jane said.
Kali looked amazed.
"So, your Eleven."
Jane nodded. Kali walked over and inspected her.
"Its okay guys." She said to the group. Everyone seemed to relax a bit except me.
"Jane. Y/n. Talk." She snapped her fingers. "Now."
We nodded and followed Kali outside. Jane told us about how she opened the hole further and even made a tear. She told Kali about the Upside Down, but not the part where we both are somehow attracted to it. Then Kali asked her a question.
"Have you ever killed before, Jane?" I could tell Jane had a flash-back by the look on her face. It looked hurt by this question.
"Yes."
I could tell Kali had a idea. But she shrugged it off, like to save it for later. We talked a little more and learned a lot about each other. We each told each other about our escapes. A few tears where shared about the touchy stuff and Kali soon descided that we should get some rest.
Jane and I had to share the corner room upstairs. We hid under the blankets and talked more. As soon as she was asleep, I crept out of the room. I went to the big room, where Funshine and Dottie were playing cards, and Mick was smoking and watching out the window. I made myself blend in with the wall, while I tip toed down the stairs. I stepped on one little creek and Mick's head shot towards me. Funshine and Dottie stopped. Mick came over -mind I say- really close to me, but shrugged it off as she saw that nothing was there. Thank God- I thought.
I stealthy tip toed across the room towards where I heard Kali and Axel's muffled voices.
"Ax. Y/n keeps hesitating. I'm not sure if Jane would be ready. I mean- she has strong powers, I can tell. But there's just something that the both of them aren't telling me... I'm not sure, but I can just tell."
Axel shuffled his feet and opened and closed his switch-blade. I was getting weak. I tried to make myself get darker, but I couldn't (I literally just learned yesterday, and haven't quite mastered the light-and-darkness power.). So I had to stop. Thankfully there was a wall between me and the big room. I wipped the blood from my nose and set my hands on my knees. I hung my head and took deep breaths. In about 3 minuets i was energized again. I blended-in once more and stepped into the dark room with one light on. The light was faced at a white wall with a bulliton board on it. On the board, there was photos. Photos upon photos of random people that i had no clue where. All I knew, was that each person on that board hurt us of us in one way, or another. (Kali told me this when we first went out.)
Axel pointed at a man.
"This one, Kali. He's one of your men."
Shit. I missed some of their conversation. Kali thought about this for a minute.
"Alright Ax. We will train Jane, and maybe take her out tomorrow with all of us- even y/n. There, we will put them to the test."
What the fu-
"I don't know if y/n and "Shirley Temple" have it in them."
"Its final." My stomach just about flipped when she said it.
Axel laughed a bit and flipped his switch-blade open. He chucked it at the man's photo and walked out, following Kali. They turned off the light as i walked into the darkness of the room. I ripped the knife from the board and put my finger to the picture. My finger glowed with my new power, as I studied the photo.
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(1111 words) = tRiGgErEd