North of bountiful Equestria and beyond the Crystal Empire lies an icy land of cryptic mystery. Its inner reaches have never been explored, but a Canterlot University expedition is set to change this. The plan is simple: penetrate the unknown depths of the Uncharted North and discover its most hidden secrets.

It's a noble undertaking, but a dark cloud looms on the horizon. Princess Luna's dreams have revealed a great but shadowy threat. To minimise the danger, Princess Celestia requests that her most loyal student, Twilight Sparkle, join the expedition and keep everypony safe. With the aid of her number one assistant, Spike, and mailmare Derpy Hooves, Twilight will attempt to do exactly that.

Cthulhu Mythos crossover, inspired by At the Mountains of Madness by H. P. Lovecraft.

For years Nightmare Moon was considered "nothing but an old pony tale," but what did those tales actually say about her? See Luna, Celestia, and Discord as viewed through pony myths and legends.

I may add more short stories on in the future as new chapters.

Image courtesy of anbolanos91 on Deviant Art. Thank you! :)

Princess Twilight Sparkle discovers a centuries-old mystery hidden in the Royal Archives. Her investigation leads through layer after layer of deception and misdirection, setting her hooves on a path that seems to be leading to a mysterious secret. Along the way, she learns that some friendships can be very, very strange.

Book 1 of the Alicorn Adventure series.

AUDIOBOOK by VisualPony
Featured at the Royal Canterlot Library
TV Tropes Page (Courtesy of Sandtalon)
Goodreads Page (Courtesy of Facedeer)
Equestria Daily Page

WARNING: Major spoilers in the comments. Takes place several months after the end of season four. (Not a Da Vinci Code crossover, BTW!)

Do you see a dark tag? No, you don't. Not dark. Well, okay, there are a couple of dark-ish bits, but that's all. Not enough to warrant a tag. Speaking of tags, there really ought to be "Badass Twilight" and "Friendshipping" ones.

Sequels and side-stories (and more) can be found here Offprint and AO3, and a hardbound two-volume set of all that can be ordered from The Ministry of Image.

My editor for the first edition of this story was Gogito, and I can't thank him enough for all the hard work he did. My editor for the revised version was PresentPerfect, and he did a terrific job of getting the story into excellent shape.