Some Mares just want to watch the World burn

This one has crazy story! It started as a picture of Pinkamena with her sisters (something, I'll go back to in nearest future), and after that... everything changed! Somehow Pinkie evolved into burning Twilight, there was Spike there for a moment, yeah making this one was super-chaotic. I had real problem with background, so I thought to myself: "Ok, You have a burning mare here, where should You put her?" and my first response was: "Library! She even live in one!"

Of course!

There must be something wrong with me...