Twilight Sparkle's day began with assassins from the future. It only got worse with the addition of time-traveling vigilantes. The memory wipes didn't do much to improve it. And the less said about her own self's intervention, the better.
It's not been a good day for Twilight Sparkle. And if she doesn't get to the bottom of it all, the future doesn't look bright either.
A companion piece to From forever, with love by monokeras and to Paradox by CCC, tackling the same basic prompt in a different way.