(Theodore’s pov) 

Y/n looked beautiful, absolutely stunning. We danced a little bit, she was a great dancer. 

“Where did you learn to dance so nicely?” 

“My brothers taught me, our father wanted us to be able to dance if we ever had to go to a fancy event or ball” She explained “Speaking of my brother, here he is” 

I turned to see Mattheo entering the room with a girl I recognized from the common room. He saw me and smiled then they came and started dancing. 

After more dancing and Y/n danced with her brother once, we were served dinner. Then after dinner we danced a little bit more. 

An hour before the dance was going to end Y/n stopped dancing and said she was going to go back to her dorm. I left with her and accompanied her in the hallways “Are you feeling ok?” I asked 

“I have a headache but other than that I think I am just tired” She quickly stopped “Someone is coming” She grabbed me and suddenly we were in her dorm. Her eyes were glowing green then she closed her eyes and fell into her bed. A second later Thomas appeared in the room, he looked at me.

“What happened?” He asked, walking over to us. I explained what happened and he nodded his head “Were her eyes a different color?” 

“Maybe a bit darker than usual then they glowed green but that was it” 

He held her hand and his eyes turned green then they turned black just as fast and he pulled away, his eyes turning back to their normal color. “Did you see anyone put anything in her drink?” He asked

“No, but Zoe, Mattheo’s date was looking at her weirdly all through the night, why?” 

“I think someone slipped a potion into her drink” He made sure all the doors were locked then he brought me to the common room and left. 

(Thomas’s pov) 

I left to find Mattheo, he was still at the dance with Zoe. I pulled him aside and told him I needed to talk to him alone. He said goodbye to Zoe then I apparated us to our dorm. 

He sat down on his bed and looked at me “What do you want to talk about?”

“Y/n, I think someone slipped a potion into her drink at the dance and according to Theodore, Zoe was looking at Y/n weirdly all night” I explained 

“What happened to Y/n?” 

“It’s hard to explain just come with me” I grabbed his hand then we were in Y/n’s room. She was lying on the bed “Hold her hand and enter her mind” 

“Why?” 

“Just do it” He did it then his eyes turned black and he pulled away quickly, I raised my eyebrows “What do you think?”

“I think what you said could be true, or it could have been a spell”

“It could have been but I think it was a potion, either way it’s bad” 

(Mattheo’s pov)

A week has passed since the dance. Y/n says she’s fine but I know there is something wrong, she seems to be hiding something from us and constantly leaves while we are in the middle of conversations.  

It was soon going to be Christmas break and we were all planning on staying at Hogwarts for break, Y/n and I didn’t really want to see our father. 

The night before the holiday break started Y/n appeared in our room, I could instantly tell that something was wrong. Thomas was asleep but I couldn't fall asleep. I got up and walked over to her then we sat down on her bed. “Hey, What's wrong?” I asked quietly, pulling her closer to me and letting her rest her head on my shoulder. 

“Nightmares” She stuttered. She sounded like she was about to cry.

“You want to talk about it?” 

“Not really” She shook her head and I saw tears rolling down her cheeks

“That's ok” I replied and pulled her into a hug. She rested her chin on my shoulder and started crying “It’s ok, it will all be ok” I comforted her “Do you want to sleep here tonight?” 

She pulled away and nodded. Her face was red and wet from tears. I went to the bathroom and grabbed her a glass of water and got a face towel wet. I gave her the water then the towel. “Can I get you anything else?”  She shook her head “Well if you need anything you can wake me up if I am asleep” 

I went back to my bed and waited until she fell asleep then I went to sleep. 

In the morning I woke up a couple minutes before Thomas. He glanced at Y/n then at me and I quietly explained what had happened last night. He got up and took a shower, by the time he was out, Y/n was awake. I was staring up at the ceiling when he came out of the bathroom. 

“Good morning Y/n, Mattheo” He nodded in my direction

“Morning Thomas” She yawned 

“Did you have any more nightmares?” I asked

“Nope, but thanks for letting me sleep here last night” 

“No problem, you are our sister, you can sleep here any time you want” 

“As long as no one spots you” Thomas added to my statement. I rolled my eyes. “May I ask what your nightmares were about” He asked 

“I don’t exactly know how to describe it, it was a lot of just… darkness, and then I felt like I couldn’t control myself and I was in so much pain and then I died” I sat up and looked at her, I could see her eyes were watery. Thomas glanced at me and I knew what he was trying to say. The darkness, it was inside of her and she felt like she was losing control of herself, of her emotions. She was blocking it out during the day but it came back to haunt her at night.

(Y/n’s pov) 

Thomas and Mattheo were looking at each other weirdly. I tried to see what they were thinking but whatever it was, they didn’t want me to find out. I went back to my dorm and changed, then met the boys for breakfast. I had been getting nightmares every night starting a couple nights after the dance. It was mostly always the same. The same blackness, the same feeling of having no control, the same pain. It all was the same and I was sick of it. “Y/n your eyes or crimson, what’s up?” Thomas asked 

I blinked a couple of times then focused my attention to him “Nothing, just past memories”

“Are you sure?” 

“Yes, I’m fine” I got up and left the Great Hall then headed to the astronomy tower. I was angry at myself. I felt so weak, crying, nightmares, my emotions were all over the place. I heard someone behind me, without thinking I grabbed my dagger and threw it at them. It was Mattheo, so of course he caught it. “Why are you here?” I asked turning away from him 

“I wanted to check on you” He replied

“Why?” 

“Because you left so suddenly, I wanted to make sure you were ok” 

“Well I’m fine, can I have my dagger back?”

“Not if you are going to throw it at other people” 

The dagger moved around in his hand then cut him and flew back into my hand. Mattheo glared at me and his eyes glowed green then Thomas was at his side.