It has been a decade since Twilight Sparkle was crowned sole Princess, and Equestria is at peace.

The Crystal Empire, not so much. King Sombra is apparently unkillable, despite all efforts. He returns several times a year to be destroyed, leaving behind his horn and always swearing vengeance. The jaded Crystal Ponies, some literally jade, have grown used to their tyrant attempting to return. Princess Cadance rules with her husband Shining Armor, while their daughter Flurry Heart excels in school. All is well.

All seems well, until Cadance begins to suspect that something is wrong with her daughter after the latest battle with Sombra. Flurry quite literally walks off a blast of concentrated dark magic. What Cadance discovers will shake her family to the core and upend everything she thought she knew about her daughter.

Flurry Heart is evil. If Cadance cannot save her daughter, she must stop her before it's too late.

Princess Flurry's dates are not up to Imperial standards.

With thanks to various Discords for brainstorming and Samey90 and RDT for pre-reading.

Anon takes over Spike’s job of transcribing Twilight’s friendship reports. He does exactly what you’d expect.

Companion fic containing Celestia’s replies up to Letter 120 - To: Anon, From HRH Sunbutt written by Snow

This story is a sequel to Dear Princess Sunbutt

When Anon takes the liberty to inject his particular brand of humor into Twilight's friendship lessons, Celestia feels the need to respond, more often than not.

A somewhat unofficial sisterfic to 2Merr's Dear Princess Sunbutt

There may not be a response to every letter, and letters 1-11 were taken from my comments in said sister-story.

Please support 2Merr's story too if you like this one. This is written with encouragement of the original author.

(Note: Picture used without permission from Derpibooru. Upon request it will be promptly removed.)

EDIT: Apparently someone's done a reading of this and its sisterfic over on Youtube! Why does nopony tell me these things.