A holiday mystery in Canterlot, unsolved for as long as anypony can remember, leads a teenaged Twilight to ask a simple question: Why steal cake?

As her favorite detective has discovered in every book of the Sable Sleuth series, it's often the simplest of questions that will lead a pony down unexpected paths. As Hearth's Warming Eve approaches, and the deadline for the next theft looms, will Twilight Sparkle be able to unravel the mystery behind the Cake Thief?

Cover Art by the talented Simbaro.
Editing by Minds Eye

"My name is Lyra Heartstrings, and you will not remember me. You won't even remember this conversation. Just like with everypony else I've ever met, everything I do or say will be forgotten. Every letter I've written will appear blank; every piece of evidence I've left behind will end up missing. I'm stuck here in Ponyville because of the same curse that has made me so forgettable. Still, that doesn't stop me from doing the one thing that I love: making music. If my melodies find their way into your heart, then there is still hope for me. If I can't prove that I exist, I can at least prove that my love for each and every one of you exists. Please, listen to my story, my symphony, for it is me."

Cover pic by Spotlight: askspotlight.tumblr.com

Letters. Everyone writes them, and they're not just for ponies. Be they carriers of serious news, friendly correspondence between pen pals, or declarations of heart and heartbreak, each one is written with a clear purpose or goal in mind.

Celestia uses them to try and keep her faithful student and friends in line, and try to keep an unbalanced world on the straight and narrow.

This is much harder than it sounds.

Now with an audio reading by Lady Tenkage!

Side Stories:

Old-Fashioned Bar Hoppers, featuring Celestia, Mayor Mare, and Granny Smith shenanigans.
Journal of an Adolescent Clone, featuring Sunny and Moony shenanigans since Season 5.