''WesternAnimation/MyLittlePonyFriendshipIsMagic'' meets ''VideoGame/{{Bioshock}}''. Is a mare not entitled to the sweat of her brow?

[[AntiHero Siren Song]], the [[ItsAllAboutMe beautiful]], [[ManipulativeBitch lovely]], and [[RoyalBrat privileged]] student of Princess Celestia, has convinced her teacher to let her venture beyond the palace walls and go abroad to study art.

However, studying art is only a cover story; Siren is on a different mission. A long time ago, Celestia had a falling out with another one of her most promising students: Twilight Sparkle. Having seen her mentor's lingering sadness over the affair, Siren has decided that she would find Twilight and talk her into burying the hatchet. She gets on a boat traveling to the last place Twilight was known to be, but just as the boat approaches, it is attacked and sunk by mutants the likes of which Siren has never seen.

She wakes up in the slums of ''Vision'', an underwater city designed to be a utopia where ponies could carve out their own place in the world away from Celestia's perceived tyranny. Ripped apart by civil war, ''Vision'' has become a hell under the sea, where ponies are hung for shoplifting, predatory mutants walk the streets, and money can buy anything.

Having been told that Twilight had died in ''Vision'' a while ago, Siren's only mission now is escape, and her only hope is the powerful councilmare and VoiceWithAnInternetConnection, Trixie, who intends to ransom her. But in order to get to her, Siren needs to journey across the city, all the while having to deal with predators, stress, injuries, a ponyhunt, and the increasing realization that she's not quite the upstanding pony she had always considered herself to be.

''{{Fanfic/Vision}}'' is an ongoing series by [[http://www.fimfiction.net/user/GaPJaxie GaPJaxie]], and it's first book, ''Siren Song'', can be found [[http://www.fimfiction.net/story/87120/vision here]]. A second book, ''[[http://www.fimfiction.net/story/175220/daring-do Daring Do]]'', is ongoing.

!!This fanfiction contains examples of:

* AntiHero: Siren.
* AddictiveMagic: The ADAM equivalent here is Heart's Desire and Poison Joke. Heart's Desire, to give you the extra skills that come with Cutie Pox, and Poison Joke, to keep it in check. The problem is, you develop a tolerance to the Poison Joke, and not getting enough of it causes you to become a mutant.
* AnOfferYouCantRefuse: Green describes Trixie's deal with Diamond Tiara as this. Pity she doesn't take it.
* AxeCrazy: Whitewash and [[spoiler: Rarity]] turn out to be this.
* BavarianFireDrill: Echo's disguise while walking about The Pavillon? Goggles and clipboard.
* BenevolentBoss / [[AFatherToHisMen A Mother To Her Ponies]]: Diamond Tiara genuinely cares for those under her, bringing her into conflict with Trixie when she thinks Siren got several of her guards killed during a riot.
* BerserkButton: Green despises those whom she considers parasites. Understandable, given that she considers them to be the reason ''Vision'' is falling apart.
* BodyDouble: Trixie has one.
* BodyHorror: The Markers, especially White Wash.
* BrokenAesop: Foal!Siren once got sent to a shrink for reading one into a fairy tale.
* TheCaretaker: Apple Bloom is Scootaloo's.
* [[CharmPerson Charm Pony]]: Green, through Heart's Desire, has the ''Would you kindly...'' power.
* ChekhovsGun: The Daring Do mantle.
* CreepyChild: The Little Sisters.
* CreepyMonotone: Berry Punch is very deadpan. It occurs to Siren that she manages to sound disinterested even when shouting for help.
* CrossingTheBurntBridge: Siren and Swiftwing.
* DeadAllAlong: An interesting twist. Siren, just after waking up in ''Vision'', unintentionally kills a mutant who attacks her. Not realizing he's dead, Siren flees from him, magically chucking things behind her as she runs. Hiding in a darkened room and trying to hold the door shut, she becomes convinced that the mutant has found another way in and goes into a TroubledFetalPosition, hallucinating him pawing at her until she faints. She discovers the corpse after she ventures out of the room.
* DefectorFromDecadence: Epiphany. [[Manga/DeathNote Exactly as planned.]]
* DrivenToSuicide: Berry Punch's backstory. She mentions it in such a nonchalant way that Siren is taken aback.
** Siren was trying for a kind of suicide when she drank the mantle. She expected to vanish into a new (heroic) personality, but ''Daring Do'' doesn't quite work like that.
* DynamicEntry: Green.
* [[EmotionlessGirl Emotionless Mare]]: Berry.
* EyeScream: How [[spoiler: Rarity gets her comeuppance]].
* FantasticDrug: Poison Joke.
* FantasticRacism: Siren has a subconscious sentiment against earth ponies and pegasi, and a conscious one against Markers.
* FunctionalAddict: Green? Yes. White Wash? Not so much.
* GenreSavvy: Echo.
* HeroicBSOD: Between stress and seeing a new messed up thing every five seconds, Siren has pretty much been here for most of the story.
* HeroicSacrifice: Green.
* HookerWithAHeartOfGold: [[spoiler: Zephyr]] is one of the few legit nice ponies in ''Vision'', so it's a bit a WhamEpisode when we come across her and SoftSpokenSadist [[BondageIsBad Echo]].
* [[HitmanWithAHeart Hitmare With A Heart]]: Green seems to be this.
* IChooseToStay: Siren turns down a chance to leave, so she can try to rescue Green.
* IntoxicationEnsues: Siren after taking ''Daring Do''.
* ItsAllAboutMe: Siren, made worse by circumstances. A FlashbackNightmare shows that she had more than a trace of it as a foal.
* JerkAss: Although Siren, Trixie, and Diamond Tiara all have their moments, Echo conveys this with almost every line.
* KickTheDog: Siren has several. Special mention to when she mocks Swiftwing's wing enhancements. [[HeelRealization Even she]] realizes the sheer pointlessness of what she just did.
* MadeOfIron: Green comments that Siren has a remarkable ability to take damage and keep going.
* ManipulativeBitch: Siren.
* [[MistakenForJunkie Mistaken For Insane Marker]]: Siren is this after all the contradicting drugs she'd been given [[MushroomSamba warp her mind]].
* OhCrap: When she learns that Rarity's about to show up, [[spoiler: Green]] all but loses it.
* PetTheDog: Siren starts to get more of these moments as part of her CharacterDevelopment.
* PhlebotinumDependence: Poison Joke.
* [[PoisonousPerson Poisonous Pony]]: Berry Punch, perhaps.
* PunctuatedForEmphasis: Not even ''Vision'' can change this about Rarity.
* QuickNip: Echo. As he comments, if you're going to drink something every day that will eventually kill you, better alcohol than Poison Joke.
* TheQuietOne: Berry Punch.
* TheReasonYouSuckSpeech: In Daring Do, Echo gives one to Siren, and she gives a better one back.
* RoomFullOfCrazy: White Wash's pets.
* ReplacementGoldfish: In a flashback, Luna accuses Celestia of seeing Siren as one.
* SanitySlippage: Happens as a marker's addiction gets out of hand.
** The relatively sane [[spoiler: Green]] deteriorates rapidly once she's [[TailorMadePrison tied-up, blindfolded]] and at the mercy of Rarity.
* ShapeshifterGuiltTrip: Siren buys herself a second by [[spoiler: imitating Sweetie Belle's voice]].
* SherlockScan: Siren is good at this. It saves her with White Wash.
* ShoutOut: Trixie informs Siren that if she can't make it out of Serpent's Wharf, the Markers will kill her and rape her, and if she's lucky [[{{Firefly}} they'll do it in that order.]]
** Siren mentions the fan songs [[http://www.youtube.com/watch?v=H4tyvJJzSDk Lullaby For A Princess]] and [[http://www.youtube.com/watch?v=kPjVCIX5Fvs The Moon Rises]].
** When she first meets Epiphany, Siren is passing the time by reading [[Fanfic/FalloutEquestria Fallout: Equestria]].
* SoftSpokenSadist: Echo, though not quite ''soft''-spoken, is very well enunciated.
* TakenForGranite: Epiphany and Green.
* TemptingFate: Green tries to encourage Siren by telling her that she's as good as home. Siren points out that in a play, that's usually a sign that something's about to go horribly wrong.
** And she's right.
* [[ThirdPersonPerson Third Pony Pony]]: Trixie, even in private.
* TraumaCongaLine: Siren's stay in ''Vision'' has been this.
* UnderwaterCity: ''Vision''
* UndyingLoyalty: Whatever else can be said about Siren, she seems to adore Celestia wholeheartedly.
** The as-of-yet-unseen Rainbow Dash seems to inspire this in her subordinates.
* UngratefulBitch: Siren's high strung and paranoid mindset has her seeing nothing but evil in ponies who are going out of their way to help her. This helps with White Wash, who appears to the reader as a genuinely kindhearted vet until Siren rubs her the wrong way and she flips her shit.
* WhatWereYouThinking: “Did you just agree to complete a vital mission on a short time limit with no idea—” “Shut up, Berry. When I want your opinion I’ll ask Trixie.”
* {{Yangire}}: White Wash.
* YouHaveOutlivedYourUsefulness: Trixie tries to [[spoiler: pull this on Echo. He kills two ponies and escapes.]]
* YoungerThanTheyLook: Berry Punch appears to be in her late-teens, despite being forty-seven.
* YourDaysAreNumbered: The Markers.
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