Flurry Heart and Pumpkin Cake get a chance to meet their favorite pop-singer, Night Shade, but they soon realize he’s not as good of a pony as they expected.
While Flurry Heart and her friends are vacationing in Southern Equestria, they meet Somnambula who is studying clues leading to a mysterious temple where she finds an old friend.
While Spike has a night out with his siblings, Flurry Heart and her friends have a sleepover in the now-renovated Harmony Clubhouse tree, but their bickering welcomes in a very powerful ghost that seeks to turn them all against one another.
(Inspired by and loosely based on "Baby Growth" by Solar-Slash on Deviant Art. Warning: Involves ponies being flushed down a toilet! Takes place in an AU during "Baby Cakes".) Pinkie Pie decides to potty train the Cake Twins, but they get flushed.
Flurry Heart, now a teen, goes on friendship adventures with her new friends. However, something seems to be going on in Ponyville, and they need to figure it out…