Just peachy. Twilight was having a bad day. She had just ingested too many peaches for the equine body to handle.

Impossible things happen.

A princess needs saving.

One's a play-by-the-rules robotic cop and the other's an adrenaline addicted Rainbow Dash, together they fight crime!
Rainbow Dash doesn't need foalsitting, she's a good cop, but she does tend to be reckless when it comes to procedure, so The Chief assigned her a partner to make sure she doesn't blow anything up. He is a robot designed by Twilight Sparkle named Spark.
Rainbow Dash is determined to be awesome, and Spark just wants to do his job.
The financial adviser for Sparkle Industries was murdered, and the pair is sent to investigate. Is this just a deranged serial killer, or is there something more sinister going on?

Warning: Contains some gore and over-the-top action sequences starting on the second chapter, also has really soft social science fiction and pop cultural references.

This story is a sequel to The Replacement

Have you heard of The Collectors? Of course you have, it's an old myth about a government warehouse where secret magical things with unknown origin and unimaginable power are kept, and the agents that protect it and keep it out of the public eye.
Yeah, it's real.
Well, it's not exactly how it is in the stories, but yeah.
How would I, the best DJ and electronic music producer in the known universe, have knowledge about such a thing?

'Cuz I'm just that awesome.

Heheh.

While that is absolutely true, the reason I know is that I was part of it.

Ties in with 'The Replacement'. It doesn't matter what order it is read, they happen basically simultaneously.

Oneshot.

Vinyl Scratch is left home alone when Octavia leaves for an audition for the Canterlot Philharmonic.
What could possibly go wrong?

Absolutely

Friggen'

Everything.

Contains VinylTavia obviously.

Side Story : 'The Collector'

I see you are thinking about reading my story. Good for you, it's a good one.
...
You need more than that to convince you?
....
Fine.
I am a changeling. I go by no name, I can't quite find one that suits my sheer greatness.
What? Who said I was humble?
I just figured I'd tell you my life's story before I die. Well, not my whole life, bits and pieces. It's a long one, but its worth the time. No, you don't have something else to do, you have the time, you don't have a life. I suppose that I won't either in a few days. Stupid corrupt legal system.
...
Actually, they're probably pretty justified in killing me.