It's Fluttershy's birthday, and Rarity- her new marefriend- is hosting it. She invited her closest friends, but only one shows. Coincidentally, it's the one she had most dearly wished would say no.

The Mane Six are transported into some of their favorite books by Discord, who has once again broken free from his stone prison. His plan for revenge will see them enact the plot, storyline, and dangers of popular books, and maybe come out with a story or two to tell in Discord's new world.

Twilight and Pinkie are waiting for a train. To pass the time, Twilight suggests a game of haiku- a game Pinkie is familiar with, apparently.

Mr. Cake sees the town around him change- except for his little slice of life, behind the counter. He meets old friends, makes new ones, and ends up selling a multitude of muffins.

Pinkie is hiding a secret in a box, a secret Rainbow dash must find out, or all of Equestria will... probably not care very much, actually. Based off the Spongebob episode of the same name.

Everypony is Pinkie Pie. Disaster caused by Pinkie, solved by Pinkie, celebrated by Pinkie, Pinkie, Pinkie, Pinkie, Pinkie, and of course Pinkie Pie.
And now I'm writing more of it!