A ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic by Chrono_Ryono.

Stressed by the growing rift between herself and her sister, Princess Celestia confides in her brightest student of the era. That fateful night, the legendary battle between sun and moon shakes the foundation of Equestria. But, what brought them to that point? And, after the fact, are the repercussions merely the prelude to something even worse?

Originally posted as the one-shot ''As Night And Day'', it has since been continued as ''Whispers'' and focuses on [[OriginalCharacter Arcanus]], Celestia's brightest student of the era.

It can be found [[http://www.fimfiction.net/story/16112/Whispers here]].

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!This fanfic provides examples of the following tropes:

* ActionPrologue: The Celestia vs Nightmare Moon battle at the start.
* [[AloofBigBrother Aloof Older Sister]]: Aurora's sister Belphegor seems to be one of these.
* ArmorPiercingQuestion: Nightmare Moon attempts one, but Celestia doesn't buy it.
-->'''NMM''': "What would father say, knowing that we…that [[WhatTheHellHero you used his gift to do this to me?]]"
-->'''Celestia''': "[[ShutUpHannibal Nothing.]] Father isn't here, Luna. He was ''never'' here."
* ArtifactTitle: As mentioned, its title was changed to ''Whispers'' specifically to defy this trope.
* BerserkButton: Arcanus has two: mention his [[RoyalBrat brothers]], or [[MyMasterRightOrWrong question Celestia]].
** Celestia seems to treat any reference to [[DisappearedDad her father]] as one of these.
* BiTheWay: Moonthistle states that she'd happily take a shot at Stella if Arcanus didn't get to her first. In chapter 7, she goes on to infer sexual interest in [[AnythingThatMoves every named character in that chapter, one of whom is married, another her best friend, and the last a stranger she'd just met.]]
** ''Very'' slightly implied with Arcanus via a throwaway line of narration.
* BigShutUp: Nightmare Moon to Celestia.
* BreakThemByTalking: Celestia lectures Nightmare Moon on the virtues of the Elements of Harmony after [[BlindedByTheLight blinding her]] [[ThePowerOfTheSun with the sun.]]
* ContrivedCoincidence / TheMagicPokerEquation: Moonthistle's approach to intelligence gathering at the Pony'borough card table is to mention Princess Luna with varying levels of respect and gauge the other players' reactions. Naturally, she is dealt ''exactly'' the ammunition she needs to make this believable: the queens of clubs and spades, which both depict Luna ''and'' allow her to win via two pair.
* CrazyPrepared: Moonthistle's saddlebag, which seems to contain a ''wide'' variety of tools for all sorts of scenarios.
-->'''Moonthistle''': "Ever find thyself thinking, 'gosh, this'd be so much easier if I had a screwdriver?' I made a list."
* CurbStompBattle: The end of the Celestia vs Nightmare Moon fight, [[OffscreenMomentOfAwesome which is the only part we get to see.]]
* CuteBookworm: Arcanus.
* DarkFic: Advertises itself as this. Time will tell if it delivers.
* DarkIsNotEvil:
-->'''Celestia''': "Dark magic, [[LampshadeHanging or rather, evil]] magic. In her normal frame of mind, [[DarkIsNotEvil Luna would detest the implication that her night was in any way associated with evil.]]"
* DrinkOrder: In chapter 7, Aurora and Moonthistle order wine from opposite ends of the spectrum ([[WineIsClassy Chateau Maregaux]] and [[ATankardOfMooseUrine Fillyerna Reserva]], respectively). Arcanus [[RunningGag doesn't like wine at all]], and settles for water.
* EvilIsNotAToy: Luna becomes Nightmare Moon by abusing dangerous dark magic, and may not have been entirely sure what she was getting into.
* {{Expy}}: Arcanus is mostly Twilight Sparkle with a bit of Fluttershy's reticence mixed in.
** Aurora combines Rarity's refined demeanor with Rainbow Dash's snark and InferioritySuperiorityComplex.
** Moonthistle somewhat resembles Applejack (down-to-earth, straightforward thinking) crossed with Pinkie (perpetually upbeat, doesn't take anything seriously).
* FantasticRacism: The unicorn-dominated nobility seems to drifting back to this. Lord-General Ixion in particular is referred to as an infamous "closed-minded unicorn supremacist."
* HardDrinkingPartyGirl: Moonthistle is outright referred to as a "hard-drinking partygoer" in chapter 7, and she lives up to it by drinking too much wine and flirting with both her best friends ''and'' strangers.
* HeterosexualLifePartners: Aurora and Moonthistle, although [[AnythingThatMoves the latter's heterosexuality is debatable]].
* IncurableCoughOfDeath: Silvermane. A blink-and-you'll-miss-it line establishes that she's coughing up ''blood''.
* InferioritySuperiorityComplex: Aurora has developed one of these due to being stuck in her sister Belphegor's shadow. It's possible that her snark toward Moonthistle is a manifestation of the ''superiority'' half of the equation.
* InnocentInnuendo: Arcanus overhears his brother Prism exchanging suggestive conversation with a married mare, and [[GenreSavvy assumes it to be this trope]]. [[spoiler:Subverted.]]
* InsufferableGenius: Aurora ''behaves'' like one, but it's not clear if she's actually this or just an arrogant BlueBlood.
** Moonthistle doesn't usually act this way, but ''does'' have the skill to slip into the act on occasion. She casually levitates a plate of food and wine, setting them to orbit around her head ''in opposite directions, occasionally stopping one to take a sip/bite without affecting the other'', all without needing to pay attention.
* LampshadedDoubleEntendre: "Inner workings" and "Hoof it."
* LoveAtFirstSight: Arcanus falls for Lady Stella the ''moment'' he sees her, and by the next chapter, they're apparently '''married'''.
* MeaningfulName: Turning Tricks.
-->--'''Tricks''': "[[LampshadeHanging Yeah, ah sure had prophetic parents.]] Sometimes ah wonder if they somehow knew [[SingleMomStripper ah'd end up livin' up to it."]]
* NoodleIncident: The "silence weed incident" Celestia and Luna [[TeensAreMonsters supposedly pulled on their mother in their youth.]]
** Arcanus's brief recollection of his two most notable parties is ''riddled'' with these.
** Moonthistle insists that if Aurora gets "targeted, robbed, murdered and/or ogled" in Pony'borough, it won't be her fault ''this time''.
* PurpleProse: A lot of things are qualified with needless adverbs and a great deal of SaidBookism.
* RagsToRiches: It's suggested that Moonthistle's family "gambled" its way into the nobility. Aurora doesn't seem to approve.
* RoyalWe: Celestia uses this [[ShownTheirWork only when believably speaking on behalf of the kingdom rather than on a personal level]].
* SherlockScan: Moonthistle performs a small one in chapter 7, [[HiddenDepths surprising the hell out of both her best friends.]]
* ShoutOut: One that actually ''lampshades'' the fact it's a shout out, too.
-->'''Moonthistle''': "Heh, inner workings. [[{{WesternAnimation/Archer}} Phrasing-]]"
-->'''Aurora''': "We talked about this, 'thistle. Devise your own jokes."
** Aurora's nickname: [[http://en.wikipedia.org/wiki/Red_Hare Red Mare]].
** [[http://en.wikipedia.org/wiki/Stella_Artois Stella of the House of Artois.]]
** Moonthistle's water spell in chapter 8 is called [[{{Franchise/Pokemon}} Hydro Pump]].
** The random terms Arcanus rattles off while reading the history book are mostly references to other fiction, including [[VideoGame/FinalFantasyIX Amdusias and Tantarian]] and [[VideoGame/FinalFantasyVI Dirt Dragon]]. The quoted song ''Back in Time'' is also reference to ''VideoGame/SonicR''.
* SingleMomStripper: The dancing mare introduced in chapter 7, known as [[MeaningfulName Turning]] [[UnfortunateNames Tricks]].
** HookerWithAHeartOfGold: She also offers "services" in exchange for money, and even refers to herself as a callmare.
* SophisticatedAsHell: Irontail chewing out Golden Ace in chapter 2 and capping it off with:
-->'''Irontail''': "Or how about knowing thy [[PrecisionFStrike bucking]] place?"
** Silvermane, Moonthistle and Stella are fond of this.
* StellarName: Lady Stella.
* SuperSpeedReading: Arcanus is referred to as a "cutie mark-powered super speed reader."
* ThickerThanWater: Celestia compares Arcanus's rocky relationship with his brothers to her own relationship with Luna, and reminds him that "for better or worse, your siblings are all you'll have someday."
* TitleDrop: Appears to be a recurring theme, as all chapters are named after a phrase contained within.
** The title of the story itself, ''Whispers'', is dropped in chapter 5.
* TomeOfEldritchLore: The book Luna uses to transform into Nightmare Moon.
* UpperClassTwit: The sun court in chapter 5, Golden Silver in particular.
* VitriolicBestBuds: Aurora and Moonthistle. Silvermane [[GenreSavvy notices it]] and muses that it's a healthy dynamic her own children could learn from.
* WhoWantsToLiveForever: Celestia. With the loss of her sister, the coming years are expected to become a lot bleaker.
* YeOldeButcheredeEnglishe: Better than some, but the FloweryElizabethanEnglish is far from perfect.
* YouNeedToGetLaid: Arcanus's royal assignment to "study the magic of love" (an obvious parallel to Twilight Sparkle's future task to study friendship) is pretty much a glorified version of this.