It's time for Flurry Heart to start using the potty. Judging by her past behaviour though, this might be quite a dangerous proposition... Fortunately, like always, Auntie Twilight has a plan to make things work out... But will it work?
After being invited for a visit to the Crystal Empire by Cadence, Chrysalis is suddenly left to spend the day with Shining Armor and Flurry Heart at the traveling fair.
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.
As a budding diplomat, Flurry Heart often travels out of Equestria and into other dimensions. It's not uncommon for her to get stalled in the Between Place, but something is different this time. Someone else is here.