Rarity is at her Manehatten branch to help Coco make the place more popular. She's schmoozing and out partying late into the night as she tries to meet the right ponies to whom she can sell her brand.
She eventually meets Weak Stitch, who is one of the more popular ponies on the fashion scene. He's interested in her, but his tastes are odd, and Rarity starts getting the feeling she's being followed when she can smell his cologne around her.
As she tries to forget the events, things start getting more and more strange. What can Rarity do about it?

Marble's life on the farm is simple and idyllic. She helps out Pa and Limestone, and in her spare time carves and sculpts rocks. She has it pretty great, she thinks. It cannot last.
Pa thinks it's high time she get married and settle down to focus on more important things, like family, and work. He doesn't see her sculptures as a way to make a living, and insists she visit the Pairing Stone for a match.
Reluctantly, she agrees.
She meets her suitors, but the Pairing Stone says all three of them are a good match. Marble thinks they're all equally unsuited. She refuses to marry any of them, and will go to great lengths to keep her freedom.

Nightmare Moon's return heralded a new age of darkness for Equestria. Celestia did not stand a chance, but contrary to most pony's expectations, a cold and thankless night was not their fate.
Nightmare Moon kept warmth, heat, and life, moving through the land, probably due to some fell magic. In this new landscape, ponies need to find new lives for themselves, and Chatelaine is one such pony.
Thrown from the castle, she becomes a delivery pony to make ends meet. This delivery goes out to a village in the middle of nowhere, where she finds darkness has taken on a new life, and the village is more dangerous than she imagined.

Derpy "Muffins" Hooves has always had vision trouble. Her crossed eyes are troublesome enough, but she's had visions since she's been a foal.
They're not too bad. She can't identify ponies on sight alone, and finding specific objects is hard, but despite how strange things look, she gets by. She's tough, after all.
This time, a strange pony has appeared during her visions, and she's not sure what he wants. He asks about strange things, and he's real mean. Derpy can handle it, right?

Applejack is cleaning her attic and finds an ugly mask. She offers it to Rainbow Dash and Pinkie Pie, because they enjoy pranking ponies. Rainbow is first to arrive to check it out, and finds out there seems to be more to the mask than Applejack knew.
She has to have it, and she can't wait to try it out.

Nurse Redheart works at Ponyville General and has been there for years now. Her work pleases her, and helping other ponies helps her feel like she's making Equestria a better place, one patient at a time.
Lately she's been having some trouble with her memory, though. She's been forgetting things... Big things. Hours of her life just gone from her memory, and she doesn't know why.
Doctor Horse says it's nothing to worry about, and tried to give her work that won't strain her at all, but it keeps happening. It's nothing serious. Doctor Horse said so...

After missing an opportunity to perform in Manehatten, Octavia rides her usual train back to Ponyville in a dark mood. She tries to relax and simply nap or otherwise occupy herself until the train arrives at its destination, but some shady train operators claim that her ticket is invalid, and that Ponyville isn't one of the stops.
Octavia suspects a shakedown, and after being ejected from the train, she waits to defend herself from a possible mugging, but nothing comes. Instead, Octavia finds herself alone on the train platform, struggling to keep herself sane as she waits for the next train.

Traveling to Applewood through the San Palomino desert, Trixie is sweaty and tired. The town she usually stopped at on her way through was missing, and she feared it had been abandoned. When she finally sees a town, it's not the one she remembered, being almost a fortress of sorts.
The town is seemingly abandoned, save for strange mirrors in every home. When she finds out what they're for, she also discovers the town isn't as abandoned as she first thought.

Color Splash thought to make a lasting mark in the old theater in the rich part of Manehatten. Covering an entire wall of the inside would make a statement the news couldn't possibly ignore once it was discovered. Unfortunately for her, although she thinks she is alone inside, there's somepony else there with her. Somepony that demands attention from the trespasser.

Luna works tirelessly to create lovely nights for Equestria, but even after she came back from the moon, she finds that they still don't appreciate the night as much as she would like, and protecting their dreams is a thankless job. With all these factors piling up around her, Luna regrets being "saved" from Nightmare Moon, and sets out to take revenge.