Stress levels were already high, with Twilight directing her first royal Hearth's Warming pageant and unexpected snowstorms escaping the Everfree. Then the changeling army arrived.

Now, with Queen Chrysalis holding Ponyville hostage and the clock ticking on suspiciously pointless negotiations, it's up to Rarity to match wits with the invaders and save the holiday. However, as she digs ever deeper into the queen's tangled plot, what she learns could force her to choose between her friendships and her conscience.

Off-season note: This is a Hearth's Warming story like Die Hard is a Christmas movie (but with espionage instead of explosions). Don't skip it just because the holiday's over.

Critical praise:

"A high-tension thriller where nothing is what it seems." — Titanium Dragon (rating: "Highly Recommended")

"An entertaining ride from start to finish … watching all the pieces fall into place is fantastic." — Present Perfect (rating: "Highly Recommended")

"Props to horizon for an intricate web of deception. Most writers have difficulty with crafting mysteries … this one, however, had me completely fooled from beginning to end." — PaulAsaran (rating: "Why Haven't You Read This Yet?")

"It’s a rare mystery and thriller that can keep things tense and make the mystery actually tough to guess as you go along, while still feeling like a natural conclusion. ... The end result of layers unveiled and red herrings contradicted makes it sing." — Ghost Mike (rating: "Really Good")

Second-place winner in the "Behind Closed Doors" December writeoff, now expanded and revised! Featured on EqD! Rated "Recommended" by MLPmatthewl419!

Big thanks to Titanium Dragon for post-Writeoff editing assistance.

Comments contain spoilers!

Caramel wasn't always a Changeling, but he's going to become one. And he's going to do it for the sake of his very special somepony.

On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?

Reader, in ancient days, the old lords of the world numbered in thousands. Then hundreds. Then even less.
Now, they are found only in tapestries and fanciful ballads.
The creatures are all vanished. All but one.

Rumors say there are more of him, somewhere far away. A young and supposedly gifted mage called Star Swirl, and Heartstrings, a gentle spinster, have joined him on a journey to find the rest.

Featured in The Royal Guard's Fic Spotlight #5
TV Tropes page (that could use more love)

This story is a sequel to Into The Depths

The horrors of the catacombs have turned to distant memories for Celestia, Twilight, and Luna. Discord’s change of heart and Twilight’s coronation have helped to ease and erase the mental scars from that harrowing night. The three princesses can even smile and laugh as Nightmare Night moves into full swing.

Yet, it should never be forgotten that those who have been touched by Tirek are forever within his grasp.

A 'Know your Star' story; only with your favourite ponies getting unneeded hassle and lies told about them. Won't this be fun? Probably not... But hey, everything can't be seriousness all the time, so let's take a load off and just pester some ponies, and Spike for good measure.

The never ending adventures of Know Your Mare march on and on and on.

Comic: http://ladlordblack.deviantart.com/favourites/#/d53s1hc
Animation: Part 1: http://www.youtube.com/watch?v=B_c7CPLlzO8&list=LLAaWYxICqZHBI2hBIxg2oEg&feature=mh_lolz
Part 2: http://www.youtube.com/watch?v=hqYTZ1TKNfk&feature=g-u-u
Picture: http://luna-is-best-pony.deviantart.com/art/Know-Your-Mare-314464512