Rainbow Dash grabs a quill and sits down at her desk. She stares at the blank piece of parchment paper in front of her. She twiddles the quill with her hoof, delaying the writing. She sighs and sets the quill down on the desk and stands up. She walks to the kitchen and fills a glass with water before going back to her desk. She sits down, sipping the water. She picks up the quill and begins to write.
Dear Twilight Sparkle,
The fact that you are reading this means that I am gone. I am no longer with you in this world. And I know that this will upset you, and everyone else too. But it is for the best. I - I've been having a really hard time lately. The fact that I couldn't stop Scootaloo from trying that dangerous trick; it's all my fault. It's my fault that she is gone. And - And I just can't take it anymore. Why does this have to happen to me, Twilight? Why? Every pony has been telling me to let her go, that it wasn't my fault. But it was my fault. I am to blame. If I had been there for her that day, none of this would have ever happened. Scootaloo would still be alive. It hurts too much, Twilight. I can't take the pain anymore. Scootaloo always looked up to me. She was part of the reason I am still here! I don't think you know, but I have been suffering from depression for a long time. I've tried not to let it get me down, though. And Scootaloo was my sun in the rain. She was the reason I got up in the morning. She brought joy to my life, and I enjoyed spending time with her. Now, with her gone, it just seems... empty. I've tried to get over it Twilight, I really have! But it just won't work.
A teardrop streams down Rainbow Dash's face and lands on the parchment. Rainbow Dash stares at the mark for a minute before taking another sip of water and a deep breath. She picks the quill up again, gripping it so hard that it snaps in half. She sighs, throwing the quill in the trash can next to her desk and getting out another quill. She dips it into the ink and goes back to writing.
I don't want you to be mad at me when you see what I have done. I want you to know...
She trails off, unable to think of what to write. Thoughts swirl around in her head, but she can't seem to choose one. She takes another sip of water and forces herself to continue writing.
I want I just I need
Rainbow Dash frantically scribbles out the words. She groans in frustration, banging her hoof against the desk. Tears stream down her cheeks as she weeps. Through her blurry vision caused by the tears, she sets the quill back down on the parchment.
I'm so sorry Twilight. Please don't be mad at me. Don't let the others be mad at me. I don't want to be here anymore. I don't want to deal with this anymore. I just want to go! I'm so, so sorry. It never was supposed to be like this. But with Scootaloo gone... I don't know what else I will do without her. I want everypony to stop telling me that it was not my fault. Because it WAS! It was ALL my fault. And.. I've already said that, haven't I? I'm just rambling now, aren't I? But... I just want you to understand. You don't know what it feels like to lose someone that you were very close to. Your parents never died, yet mine did! You weren't that close to Scootaloo, but I was! You don't know what it is like to feel loss in the ways that I have felt it. Until you have felt that, you won't be able to understand. Maybe after I am gone... maybe then you will understand. Maybe then you will feel the pain of a loss. But I am not doing this to put you in pain, Twilight. I am doing this for myself. Because I don't want this anymore. It's not like I would ever become a wonderbolt anyways. Yes, I am the only pony that has ever done a sonic rainboom, and I am probably the only pony that will ever be able to do a sonic rainboom. And that is how I want to leave. I want to leave while doing a sonic rainboom. I want to leave doing the same action that caused me to get my cutie mark and which has defined who I am. I don't want to go in some silly little way; I want to go like a hero. And that is what I will do. That sonic rainboom that you will have seen tonight last night will be the last of me. It will be done during that. I don't want to just fade away; I want to be remembered. Goodbye, Twilight. You were the best friend a pony could ever have.
Sincerely,
Rainbow Dash
Rainbow Dash bursts into tears and lays her head down on the desk near the letter. She lets herself cry for a few minutes before standing up and walking outside. She takes a deep breath and takes off into the sky, flying higher and higher with each passing second. When she reaches the highest point that she can go safely, she stops and hovers for a minute. She looks around her and the world she will be leaving behind. The moon shines brightly, illuminating the cyan colored pegasus as she takes off downwards. She flies faster and faster, until she is going faster than the sound barrier. A sonic rainboom emits from her wake, spreading outwards. As Rainbow Dash hurtles towards the ground, she lets go. She brings her wings to her side and dives. The ground grows closer and closer. Just before she hits the ground, she feels at peace once again.