Humans visit Equestria like they own the place, and for a good reason. The Magic Mirror in the depths of Celestia's treasury produces them only when the world is once again in mortal danger.

Luna, after turning into Nightmare Moon, has been able to understand something in the infinity of this cycle and wants to stop it. But why?

Originally written in Russian as Последняя жертва by orc01.
The author doesn't know English well and gave his explicit permission to translate and post the story. The translation is an independent work of fiction, and does not constitute theft, self-appropriation of authorship, or disrespect for the work of the original writer.
Edited and preread by way2dawn.

Although you've probably heard of the Nightmare Night where Princess Luna visited Ponyville, there was a previous one that, by decree, Princess Celestia cancelled. This forces friend and foe alike to change their plans, also giving new opportunities to the Agents of Chaos. What happened to Luna and that year where the celebrations were cancelled? Read on to find out!
(Set mid-Season 1 before "Fall Weather Friends")

Prev: High Fashion, High Noon| Episode 15: Circle of the Moon | Next: A Hearth's Warming Caper

New to the series? Start here!

One week. One. Blasted. Week.

That's how long it's been since Celestia has seen her sister. Since the survivors of the last battle of the War of Sun and Moon were able to see the loved one's they lost that day, or sell things in the storefronts that they used to own. However, one day she sees a strange sight, and goes to investigate with four guards.

It's been four weeks since Nightmare Moon returned, and Princess Luna was redeemed. Four weeks of relatively normal life compared to the adventure that was Nightmare Moon's return.

Then, one day, Princess Celestia sends Twilight a letter asking her to go visit an old friend of hers. Curious as to who this friend is, Twilight and her friends set out to reach the location that this friend is at.

When they reach their destination, an odd blue box awaits them, along with a being unlike any other.

A Doctor Who/My Little Pony:Friendship Is Magic crossover with a twist:
The Time Lord in Equestria isn't the Doctor, and wasn't born a Time Lord.

Inspired by Coming to terms by The Infinity Doctor.

Note: I really do need more than just numbers here people. If you like or dislike, favorite, or unfavorite, please leave a comment explaining why.

A Doctor Whooves tale starring the Seventh Doctor.

The Doctor goes to Whinnychester Castle to pay a visit to his former companion, the Alicorn Celestia of Equestria. What starts as a social call becomes something else when the Doctor learns Celestia's sister has been working herself to exhaustion investigating something that has been attacking ponies in their dreams.

But even that is simply a prelude to something far more sinister. Something that will require the Doctor, Celestia, and the captain of Princess Luna's Night Guard to travel through the dreams and memories of the Princess of the Night. On their quest, the trio will uncover the origins of great darkness and maybe, just maybe, avert the calamity of Nightmare Moon.

Cover Art by DiscordedWhovian
Proofreading courtesy of Unimpressive Vagaries
Thanks to both of you guys.

Inspired by the story image, RainbowDoubleDash's Lunaverse and Trinary's "Rainbooms and Royalty", I give you my take on the alternate universe concept. Namely, a universe where Spike is the pony and Twilight is his dragon assistant.

The thousandth Summer Sun Celebration is approaching. With it will come the return of Nightmare Moon. Celestia has no student to call upon to save Equestria, and is doing all she can to make the last day of peace meaningful for her people.

Meanwhile, Spike "Purple Prose" Flail is a reporter for the Canterlot Sun. He finds himself being shipped down to the boonies with his longtime friend and assistant, Twilight, to cover the biggest festival Equestria has seen in a millennium!

But even with a visit from the princess, there's no way someplace as boring as Ponyville could ever be newsworthy. Right?

A/N: Credit for cover image goes to dzetaWMDunion on Deviantart art.

Story would also include character tags for Thunderlane and Cheerilee if not for the character tag limit.

Now has a TVTropes page!

The first part in the Light and Darkness Series

We will kill you all! Even if we have to do it one pony at a time!

Princess Celestia wants Princess Luna to make some new friends now that she has returned from being Nightmare Moon. Luna is already acquainted with The Elements of Harmony and that's really about it. Celestia wants Luna to go visit Ponyville, a much less formal place than Canterlot to possibly make some new friends. However, little that Celestia even Luna knows, this will soon be the worst idea that Celestia has ever had.

Based off the famous movie: An American Werewolf in London.

This is a collection of short little mostly unrelated prompts that I've written for the various shipping collaboration stories out there, or just random little stories I've never gotten around to finishing. Character focus will be listed in each chapter's title.

Cheese - Luna revisits some old memories. Celestia stops in for a visit.
Renegade - Crossover w/ C&C Renegade.
Day - Celestia nurses Luna back to health.
Grumpy - Nightmare Moon visits Twilight Sparkle, bribe in hoof.
Belly Rubs - Luna and Twilight explore waxed floors in the middle of the night.
Snowflake - Luna tries to get Celestia to take a break.
Broken -
- 1 - Celestia wakes up and tries to find her sister. This one was the hardest one to write to date.
- 2 - A pair of confessions between sisters change everything and nothing.
Edge - Twilight tests out her new wings. Twice.
Note / Circles - Twilight flirts with Luna.
Ridiculous - Luna gets all the best loot.
Precocious - Nightmare and Twilight fondly remember how they adopted their little daughter.
Cause and Effect - Alicorns snore, loudly.
I Wasn't Prepared For This - A bit of headcanon about how to court either Royal Sister.
What if? - The first Lightning Round prompt. A good little take on what could go wrong in the Everfree.
Hearth's Warming - Twilight spends a lazy Hearth's Warming with Celestia.
Sickness - Spike catches a cold.
Plushie - Even Luna ships it.
Train - Celestia helps Luna rest.
Flaming - The parasprites invade again, it's up to Twilight and Celestia to save the day!
Dinosaur - Twilight takes Celestia on a date.
Valentine's / Hearts & Hooves Day - Celestia accidentally stumbles in on Twilight preparing for their 'fun' night.
Sunset Shimmer - Forgotten - Sunset Shimmer discovered something she thinks she wasn't supposed to.
Sappy - Twilight searches for Celestia.
Conflict - Truthfully? A random idea that popped into my head about Destiny. Celestia dances with Twilight and Applejack.
Resists - Twilght and Celestia share a drink after a mutually stressful day.
I Want In - Infiltrations may look easy, but they require plenty of planning and skill.
Rememberance - Twilight receives some bad news, and all of Equestria is lesser for her loss.
Belching Contest - A random little story I mostly wrote in 2015 that never got finished. Dash, Luna, and Twilight have a belching contest when drunk.
Towel - Twilight's klutzy when wet.
Focus -
- 1 - (Postapocalyptic, humanized, Twilunestia) Scouting is a whole lot more dangerous than Twilight signed up for.
- 2 - Everypony makes mistakes.
Yield - Somedragon doesn't know when to give up.

This is a diary of the 1000 year imprisonment in the moon Nightmare Moon had to endure. She goes through her time in her prison watching Equestria thrive under her elder sister Princess Celestia. She placed every little thought of her imprisonment in it and filled its pages with thoughts and plans for the future, if she were to be released from her cell. But when Twilight Sparkle comes to visit Celestia, and in a bit of commotion, Luna takes one of Twilight's books thinking it was the diary. When Twilight realizes she has it, she can't help but look inside.

Story snippets, outlines, short one-shots, and other things that don't warrant a singular story entry.

Just like every other one on FIMfic. See index for more accurate tagging info.

Index;

Assassination: Slice of Life, Drama — Celestia explains to an MP how she feels about assassination. [One-shot]
Living Bad Dreams: Dark, Adventure — One night during her patrol, something follows Luna out of the world of dreams. [2 chapters of scrapped story]
The Sisters and The Dragon: Adventure, Faux-Mythology — A young Spike asks Celestia why dragons and ponies don't get along. So Celestia tells him a story: the time two sisters met Tiamat, mother of dragons. [Short scene from a potential story idea]
Untitled Inexcusable sequel: Dark, Alternate Universe — A "friend" from a previous life visits Nightmare Moon. [Theoretical continuation of different story]
Untitled Sunset Shimmer story: Dark, Alternate Universe — [Proof of concept from discarded story]
"The Mirror[ed Princess]": Fairy Tale, Subversive — A guilty ruler creates a mirror that reflects all the good qualities of whomever looks in it. [short one-shot]
Astronomic Changes Outline, Clockamole, et. al: Adventure, Slice of Life, Alternate Universe — Twilight the astronomer must defeat Nightmare Star, but she will need some friends to help. / Sweetie Belle steals Rarity's magic food ingredients. / Rarity's food magic causes issues. [Pieces of unfinished AU]
Welcome Home: Dark, Alternate Universe, Sad — [Discarded continuation of You Too Will Deteriorate]
"Senescence": Sad — Celestia muses about immortality. [Poetry]
"I spied a pretty mare. . .": Limerick — dating sucks. [Poetry]
"Pony haiku 1": Haiku, comedy? [Poetry]
I Hate Hearth's Warming Music: Romance, Slice of Life — Rarity has been lying to Pinkie about something near and dear to her; Hearth's Warming music.

The last time Luna had a sleepover, she and Cthulhu had a pillow fight. The time before that, she played board games with King Kong. And before that, Godzilla joined her in some pranking. Her next sleepover guest, albeit not from this universe, is kind, gentle, and selfless, ally to good, nightmare to evil. Celestia finally feels Canterlot can stand an event planned by the Moon Princess. That is until the uninvited guest arrives. Property combusting, subjects screaming, and lots of flashy lights. Add to the fact that the ambassadors of Las Pegasus are visiting to discuss new economical arrangements in 16 hours, Celestia has quite the challenge set ahead of her.