As Seen In:

Yuletide Letter 2025

Thu, 23 Oct 2025 14:46:33 GMT

Hello! I'm Rosencrantz on AO3 and this is my Yuletide letter! Thank you for reading it!

DNW: Dub/noncon, underage (-18/-18 sexual, -18/+18 anything)
WANT: Casefic, adventure, romance, epistolary, ghosts, heavy character interaction.

ALSO: Treats very welcome!

ALSO ALSO: I have opted in for the IF mini-challenge (all my fandoms, but especially Citizen Kane) and the unusual formats challenge (all my fandoms! Academia stuff especially for BPRD), and Yulebuilding (the worldbuilding challenge! Just Hellboy for that one)

Fandoms:

Hellboy (Comics)

X-Men: The Animated Series (1992)

Citizen Kane

( The prompts! )

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Trick or Treat

Fri, 12 Sep 2025 08:36:41 GMT

Hello! I'm Rosencrantz on ao3 and thank you for reading this letter!

All requests are trick and treat fics!

DNW: Non/dubcon, Underage (-18/-18 sexual, -18/+18 anything) (EDIT: Given the current tone of social media censorship, I just feel like I should say I DNW this stuff because I'm picky, not because I'm a hater)
Likes: Casefic, adventure, romance, horror, fluff.

Fandoms:

World of Warcraft

Hellboy (comics)

Murder She Wrote

The Files of Young Kindaichi (2022)

( prompts below! )

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Dear Letter Writer

Thu, 06 Mar 2025 06:15:39 GMT

Hello! Thank you for reading this! My ao3 username is Rosencrantz!

DNWS: Dub/noncon (with an exception for stealing and using bodies by Boston Brand/Deadman in the DC comics prompt), underage (-18/-18 sexual, -18/+18 anything)

Likes: Adventure, romance of all ratings, ghosts, mysteries, worldbuilding

( The prompts! DCU Comics, Marvel 616, Hellboy Comics )

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Hello Candyheart writer!

Thu, 02 Jan 2025 13:14:14 GMT

Hi! I'm Rosencrantz on Ao3 and thanks for checking out my letter! All prompts are for fanfic! But if you're into that sort of thing, I'd love art treats!

My likes: Casefic, all romance heat levels, adventures, mysteries, ghost stories, character snapshots, good times and kisses.
DNWs: Dub/noncon, underage (-18/-18 sexual, -18/+18 anything) (NOTE: Some fandoms have fandom specific DNWs, these are also in my sign up)

World of Warcraft

CSI: Crime Scene Investigation (TV 2000)

Marvel (Comics)

DCU (Comics)

The Lord of the Rings - J. R. R. Tolkien

Hellboy (Comics)

( Behold, prompts )

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Dear Yulegoat

Mon, 07 Oct 2024 06:01:21 GMT

Hello! I'm Rosencrantz and I'm so glad you're reading my letter for Yuletide! I have treats enabled!

Likes: Ghosts, adventure, mystery, casefic, really digging into stuff that could only happen in that specific canon.
DNW: Dubcon/noncon, underage (-18/-18 sexual, -18/+18 anything)
Opt-ins: epistolary, in-world documents, 1st person pov, poetry, interactive fiction, puzzles, gen to explicit

Murder She Wrote
My Little Pony Generation 1 (Cartoon 1984)
Hellboy Comics
X-Men: The Animated Series

( Requests: )

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Dear Trick or Treat

Sun, 15 Sep 2024 11:23:55 GMT

Hello! I'm Rosencrantz on Ao3 and this is my trick or treat letter! Thank you for reading!

All of these are Tricks and Treats and fic, except Super Mario Bros which is also asking for art.

Likes: Scary stuff, sweet stuff, romantic stuff, exciting stuff. Mysteries, adventure, smut, etc. Any length - prompts were made with the 300 min in mind, but longer is also excellent.
DNW: Dub/noncon, underage (-18/-18 sexual, -18/+18 anything)

FANDOMS:

Murder She Wrote
- Jessica Fletcher
Super Mario Bros (Videogames)
- Bowser/Luigi
Father Brown
- Brenda Palmer
- Father Brown & Brenda Palmer
CSI: Miami
- Horatio Caine
CSI: Crime Scene Investigation
- Warrick Brown
- Warrick Brown/Gil Grissom
- Warrick Brown/Catherine Willows
World of Warcraft
- Marius Felbane/Tehd Shoemaker
- Khadgar/Illidan Stormrage
- Jaina Proudmoore & Anduin Wrynn
- Captain Garrick

( The prompts for all tricks and treats )

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Dear Unsent Letters Writer!

Sat, 02 Mar 2024 22:53:47 GMT

Hi! I'm Rosencrantz on AO3 and I appreciate you checking out my letter!

Likes: Light humour, angst, romance, smut, gen, adventures, happy endings.
DNWs: Noncon/dubcon, underage (-18/+18 at all, -18/-18 sexual) EXCEPTION: If it pertains to a case Lilly is working on.

I chose all formats.

Fandoms:

World of Warcraft

Marvel 616

Barbie Movie (2013)

Crossover - Cold Case/Supernatural and Cold Case/Ghostbusters

( Prompts below! )

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Dear Worldbuilder

Sat, 24 Feb 2024 03:40:31 GMT

Hello! I'm Rosencrantz on Ao3 and I'm so happy you're checking out my letter!

Likes: Adventures, meta, outside commentary, inside commentary, academic, artifact catalogues, book reviews, articles, interviews, romance, Intense Feelings
DNW: Dub/noncon, underage (anything -18/+18, sexual -18/-18)

Ratings: G to Explicit

If smut's the name of the game, please just stick to the DNWs. My personal smut preferences enjoy more petite partner on top, light bdsm, lots of after cuddling, and mouth and hand stuff.

Every single prompt is for fanfiction and/or meta. I do not need a conventional narrative for my gift and some of my favourite worldbuilding fics have been things like book catalogues. I did not choose fanart but if you want to incorporate images into the gift, that's fine by me! Just as long as it's not the whole gift.

FANDOMS:

Pokemon

World of Warcraft

Marvel 616

X-Men Comics

( Prompts )

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Dear Candy Hearts

Mon, 01 Jan 2024 05:43:55 GMT

Hello! Thank you for reading my letter! I am Rosencrantz on ao3!

DNWs: Non/dubcon, underage (sexual -18/-18, anything -18/+18)

Likes: Casefic, ghosts, spooky stuff, fun bits, hot bits, smut, g-rated, stuff that plays with canon.

FANDOMS:

X-Men: The Animated Series

Transformers: Beast Wars (Cartoon)

Ranma 1/2

CSI: Crime Scene Investigation

The Darkside Detective

Asterix the Gaul

Tintin

World of Warcraft

Hellboy (Comics)

( The prompts! )

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Dear Yulegoat!

Wed, 11 Oct 2023 09:48:21 GMT

Hello, thank you for reading my letter! I'm Rosencrantz on AO3

I took a look into the other fandoms available for Yuletide this year and I found a lot with interesting premises I didn't know well enough to ask for but loved the concept, so I'm offering them up here as AU/Plot ideas if you want to use them! I'll explain after each one what I liked about it.

Haunted House Flippers - I love haunted houses, I love the idea of the characters having to deal with one for some sort of refurbishing or selling it

Welcome To Our Village, Please Invade Carefully - non-catastrophic alien invasion that is awkward sounds fun

Batman: Wayne Family Adventures - Mundane, family stuff that still deals with the more wild aspects of canon

Clue - someone in this room... IS THE KILLER

Epcot/Disney Rides - theme park stuff. Sounds fun.

Japanese Local Hero City Mascots - Being a mascot, being hunted by a mascot, strange shenanigans involving mascots

Humans are Space Orcs - Humans and how they can be unique in a setting is interesting to me

When you see a lore video for a franchise you know nothing about - I would love, especially in worldbuilding prompts, see the characters from the outside.

X-Files - someone trying to figure out their deal

Jeeves and Wooster - silly social shenanigans

Exchanges I have loved that would also make fic prompts:

Alternate Universe Exchange (using the fandom list above as ideas)

Invisible Libraries (fiction of fiction from inside the universe)

Epistolatory (fiction told entirely through documents, ephemeral)

I enjoy: casefic, spooky, adventure, romance, worldbuilding, and stories that could only take place in the canon.

DNW: Dub/noncon, underage (-18/-18 sexual, -18/+18 anything), my chosen characters being the villain of the fic.

FANDOMS:

Gargoyles

The Darkside Detective

My Little Pony Generation 1

Murder She Wrote

Ranma 1/2

X-Men: The Animated Series (Cartoon 1992)

( Click on to read )

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Dear Trick or Treaters

Tue, 12 Sep 2023 00:20:00 GMT

Hi! I'm Rosencrantz and thank you for looking at my letter! I hope my ideas fit into 300 or so words for a nice little ficlet but I'm also open to longer fic as well as treats.

DNW: Dub/noncon happening to or performed by the tagset characters. For example, if you did a CSI Miami story and did a case in it, the case could involve that as long as it didn't happen to Horatio Caine. Underage (18+/18- anything, 18-/18- sexual)

FIC LIKES: Casefic, ghost stories, spooky stories, 'what if things went right?', humour, mysteries, gen to explicit*, lore heavy stuff, and Halloween-y themed stuff.

*I'm sorry, I don't have a kink list of things I like or dislike. I will tell you that I am okay with Tehd going down to bone town in the many ways possible for a Forsaken.

ART LIKES: I love cartoony stuff, I love realistic stuff, I love bright colours, dull colours, I like pictures that tell a story, I like illustrations, and I like both digital and traditional media equally. A particular fondness I have is for stuff that looks like ephemera, like old photographs, tickets, stuff that would be a prop (so a drawing of something that was relevant to a tale) as well as less ephemeral stuff like something that looks like a painting on a wall in-world.

( World of Warcraft, City of Heroes, Cold Case, CSI, CSI Miami )

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AUex Letter!

Fri, 07 Jul 2023 10:43:25 GMT

Hello, AUex writer! I'm Rosencrantz on ao3 and I'm so happy you're reading my letter. I have treats turned on!

Likes: Small changes and huge changes, adventures, casefic, gen to smutfic.
Dislikes: Unhappy endings.

Smut likes and dislikes: Instead of an exhaustive list (because I really don't know myself), I'm gonna just suggest you play it safe. The only hard nos are my DNWs.

DNW: Dubcon/noncon, underage (any +18/-18, any sexual -18/-18).

FANDOMS:

X-Men: The Animated Series

Jurassic Park Original Trilogy

Murder She Wrote

Super Mario Bros Videogames

World of Warcraft

DC Comics (Batfamily focused)

( Prompts inside! )

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Letter for 90s exchange

Fri, 10 Feb 2023 01:01:05 GMT

Hi! I'm Rosencrantz on AO3 and I'm chuffed you're reading this!

DNW: Dub/noncon, underage (where underage is defined as sexual under 18/under 18, or any under 18/over 18).
LIKES: Adventures, casefic, shenanigans, smut, canon typical adventures, epistolary, worldbuilding.

Fandoms:

due South (fanfiction)
X-Men: The Animated Series (fanart, fanfiction)
Transformers: Beast Wars (fanart, fanfiction)
Agatha Christie's Poirot (fanfiction)

( Prompts within! )

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Dear Worldbuilder

Sat, 21 Jan 2023 13:23:37 GMT

Hi! I'm Rosencrantz on AO3 and thank you for reading my letter!

My DNWS are: dub/noncon and underage (sexual under 18/under 18, anything under 18/over 18)

My fandom specific DNWS are:

Pokemon: Human/Pokemon
Dinotopia: Anything that pushes Dinotopia into dystopia

My specific DNW note for Sailor Moon is:

I am aware of Usagi and Mamoru's relationship in regards to my underage DNW and to stick by this DNW, I ask only that you set anything happening in the story/meta you have written post-18 for Usagi if you go that way. You do not have to pretend canon didn't happen.

For every fandom, I have asked for fic and meta. This means I'm happy with narrative, documents, historical notes, any of the sort. If you want to blend fic and meta, I'm pleased to receive that. That's part of the reason I chose both, so you didn't have to worry about the dividing line. Though I did not ask for art and do not want that as the only fill, if you want to include illustrations that's perfectly fine with me! Any art skill is fine, because it's what the in universe character would be doing.

Likes: I enjoy adventures, academic notes (an exceptional fic I got one year was just book catalogue notes!), histories, ethnolographic style things, emotional interactions, families interacting, pets interacting, joyful things, spooky things, news reports, journal entries, letters to others.

Pokemon Video Game Series

Marvel 616

Lord of the Rings - JRR Tolkien

Star Trek: TNG

Dinotopia

Sailor Moon Manga

( Pokemon, Marvel 616, Lord of the Rings, Star Trek: TNG, Dinotopia, Sailor Moon Manga )

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Candy Hearts Exchange letter

Sun, 01 Jan 2023 09:03:54 GMT

Hi! I'm Rosencrantz! Thank you for reading my letter and I hope you find inspiration!

DNW: dub/noncon, underage (where underage is defined as sexual under 18/under 18, or anything under 18/over 18), or unhappy endings (defined as requesting a story end on a hopeful or triumphant note, not on defeat)

Likes: Sweet moments, funny moments, casefic, canon-typical adventures, interacting over a macguffin. Gen to smut also adored. Ghosts always.

Super Mario Videogames

Hellboy Comics

Father Brown 2013

Nero Wolfe - Rex Stout

( Super Mario Videogames, Hellboy Comics, Father Brown 2013, Nero Wolfe - Rex Stout )

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Dear Yulegoat!

Wed, 12 Oct 2022 23:50:11 GMT

Hidey ho! I'm Rosencrantz on AO3 and it's nice to have you reading my letter!

I have the 'get gifts' setting set to 'yes', also.

DNWs: Underage (sexual under 18/under 18, anything under 18/over 18), dub/noncon, unhappy endings.
Likes: Casefics, adventures, meta, mysteries, ghosts, spooky, folklore, cats, recipes, romance.
Ratings: No preference. Follow your heart.

Neko Ramen

Murder She Wrote

Hellboy (Comics)

Witchfinder (Comics)

Bureau for Paranormal Research and Defense

City Of Heroes

( Letter within )

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Dear Trick or Treaters

Thu, 15 Sep 2022 23:13:07 GMT

Hello! Happy Halloween! I've tried to give prompts that will work in bites of 300 words or as a simple piece of art! Every prompt I give applies to art as well as fic. I am interested in both tricks and treats and I *love* ghost stories. Every single thing I suggest would work with a ghost.

DNW: underage (under 18/under 18 sexual, under 18/over 18 anything), dub/noncon, and unhappy endings UNLESS it's a super spooky trick one.
Fandom specific DNW: human/pokemon

Likes: Spooky stuff, cute stuff, seasonal stuff, and adventures. Scenelets that capture a mood would be lovely.

( Pokemon Main Video Game Series, Jem and the Holograms Cartoon, and Detective Conan )

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Dear AUex

Tue, 05 Jul 2022 11:50:11 GMT

Hi! I'm Rosencrantz on Ao3 and I'm grateful you want to read my letter! A big thing about AUex is sometimes the entire prompt is the AU tag so I don't often have much to add, I'm sorry, but here's some further notes about what I like.

DNW: Underage (sexual under 18/under 18, anything under 18/over 18), non/dubcon, and unhappy endings.
Likes: Casefic, adventure, humour, worldbuilding, exploring an idea.

Fandom specific notes about Marvel: I'm not what you would call 'caught up' on Marvel comics right now, so I probably won't know anything from the most recent (7 or so years EXCEPT the Zdarsky/Quinones and North/Henderson/Charm runs of Howard and Squirrel Girl) canon. Feel to use the platonic ideal of the characters/setting for the fic. Use the recent canon too if you want, I'll be fine!

( Marvel 616, X-Men The Animated Series, CSI Crime Scene Investigation, Agatha Christie's Poirot )

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Press Start Letter

Tue, 05 Jul 2022 11:35:55 GMT

Hello, I'm Rosencrantz on AO3 and thank you for looking!

DNW: Underage (sexual under 18/under 18, anything under 18/over 18), non/dubcon, and unhappy endings* (*except for Obra Dinn)
Likes: Adventures, casefic, worldbuilding.
Cool with: OCs.

( City of Heroes, Return of the Obra Dinn, Dragon Age )

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Dear Crossworker!

Thu, 23 Jun 2022 08:55:44 GMT

Hi! I'm Rosencrantz on AO3 and I'm so happy you're checking out my letter.

My DNWs are: Underage (under 18/under 18 sexual, under 18/over 18 anything), dub/noncon, and unhappy endings.
My likes are: adventures, case fic, humour, exploration of canon concepts, and things that celebrate the canon.

X-Men - All Media Types, The X-Files, Agatha Christie's Poirot (TV)

The Darkside Detective (Video Game), Star Trek: Lower Decks (Cartoon)

My Little Pony Generation 1 (Cartoon 1984), Jem and the Holograms (Cartoon)

The X-Files, Miss Marple - Agatha Christie

The Darkside Detective (Video Game), Agatha Christie's Poirot (TV)

Gargoyles (Cartoon), The X-Files

Pocket Monsters | Pokemon (Main Video Game Series), The X-Files

Calvin & Hobbes, Winnie-the-Pooh - A. A. Milne

All of the below except Calvin and Winnie (which is ALSO both art options):

Fic/Crossover, Fic/Fusion

( Prompts below )

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Dear Chocolate Box

Sat, 01 Jan 2022 12:22:13 GMT

Hi! I'm Rosencrantz on Ao3! Thanks for reading my letter!

DNWS: Non/dubcon, underage (sexual under 18/under 18, anything at all under 18/over 18), or unhappy endings.
Likes: Casefic, adventures, group activities, canon-specific antics (stuff that can only happen in their canon)
RATING: Anything from handholding to sex is fine with me.

All prompts are for fanfiction.

( X-Men TAS, DCU Comics, Justice League and Justice League Unlimited, Super Mario Bros )

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Dear Yulegoat

Fri, 15 Oct 2021 17:39:04 GMT

Hi! I'm Rosencrantz on AO3 and thanks for reading my letter!

My likes: Adventure, casefic, horror, mystery, character banter.
My DNWs: Dub/noncon, underage (under 18/under 18 sex, under 18/adult anything), and unhappy endings.

Special note: I'm trying out the worldbuilding tag this year! I understand it's a bit of a wibbly wobbly thing to define, so as long as you involve the wider world in your story, I'll be perfectly happy.

Crossovers: You could mix any of these if you want to! All of them are pretty compatible, I think! As a bonus round, you can also mix any of these you'd like to with Murder She Wrote as long as it involves a (positive) Jessica Fletcher.

Unconventional fanworks: I love meta stuff! Reports, bibliographies, epistolary, you can write any of that for my prompts! If you want to make a twine game, I would absolutely be cool with that. Note: Nothing that involves audio, please.

Fandoms are:

Hellboy (comics)

City of Heroes

Darkside Detective

( Go. Read. Write fic. )

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Dear AUex

Sun, 11 Jul 2021 09:06:27 GMT

Hi, I'm Rosencrantz on ao3! Thank you for reading my letter! Here it is, in order of fandom and prompt.

DNW for every fandom: Non/dubcon, underage (under 18 with adult any form, under 18s sexually), unhappy endings.

Likes for every fandom: adventures, worldbuilding, family, scenarios explored.

Also every request is for fanfiction.

I asked for convergent mouse society for ALL my fandoms which has a few interpretations I suggest to you:

Great Mouse Detective (Disney, not book) style where it's like analogues of the real characters but they're mice.

Rescuers (the mice have their own society that interacts sometimes with the human world)

Rats of Nimh (avoid the world, but are affected by it nonetheless)

Basil of Baker Street (book, not Disney) which is a bit of Rescuers and Rats of Nimh but much more Mirror Of The Real World.

All of these would be equally lovely to me but I must offer my personal headcanon for Star Trek: TNG wherein Datamouse is a wind up mouse toy.

Fandoms:

Marvel 616

Pokemon (videogames)

DCU Comics

World of Warcraft

Star Trek: The Next Generation

( Onwards )

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Dear worldbuilder

Fri, 15 Jan 2021 21:02:57 GMT

Hi! I'm Rosencrantz on AO3! Thank you for checking out my letter!

The fandoms are:

Marvel 616

Pokemon (Videogames)

Neverending Story

World of Warcraft

I like: letters, transcripts, educational texts, pamphlets, regular prose, and 'lost stories'
I DNW: Rape/dubcon, and underage (as defined as sexual under 18/under 18, or anything under 18/over 18)

Have a great WBex!

( My Letter )

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Dear Chocolate Box

Sat, 02 Jan 2021 00:22:36 GMT

Hi! I'm Rosencrantz! Thank you for reading my letter!

Likes: Adventures, casefic, romance, spooky.
DNW: Dub/noncon, underage (as defined as romance/sex involving over 18 with an under 18), unhappy endings.

( DCU Comics, Marvel Comics, CSI, and X-Men The Animated Series )

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