Thanks so much for writing for me! This is my first time participating in Trick or Treat, and I'm really looking forward to it. I hope you have a lot of fun, too!

My signup requests are all for fic, but I'm happy to receive art as a bonus gift.

With one exception, I have a strong preference for Tricks that either 1) use supernatural horror tropes in a non-horrific fashion, e.g. werewolves who retain their humanity while shifted, or 2) involve scary supernatural threats that are soundly defeated by the protagonists for a happy ending. The one exception is Dark Matter, where I'd prefer canon-level horror.

Particularly relevant to this exchange: I love werewolves, like ghosts, am generally disinterested in vampires but can be persuaded if the fic is awesome, and do not want zombies. Regarding Treats, I like anything from G-rated fluff to hardcore porn, but don't care for PWPs; I like some sort of character and/or relationship development along with my smut. If you want further details on my fic preferences, you can check out my general fic kinks and squicks post or browse my fic exchanges tag.

A Charm of Magpies Series - K. J. Charles
Ned Hall, Crispin Tredarloe

I'm open to pretty much anything in this fandom: curtain fic, case fic (as mundane or scary as you like), Ned and Crispin developing their respective talents, backstory for either or both of them, how their romantic relationship progressed between "A Queer Trade" and Rag and Bone. If you're writing future fic, I'm especially fond of Mrs Gold, should you want to include her; I actually think she and Ned might make good friends.

Dark Matter - Michelle Paver
Gus Balfour, Jack Miller

Something as creepy and sad as the book would be perfect. I'm particularly intrigued by the idea--as voiced by Jack at the end of the book--of Gus becoming another Gruhuken ghost. A missing scene from the expedition--either Gus's or Jack's POV--would also be great. I'd prefer a Gruhuken setting, but if you have a great idea that requires a Caribbean setting, go for it. Ghost(s) and an unhappy ending, please!

The Eagle | The Eagle of the Ninth (2011)
Marcus Flavius Aquila, Esca Mac Cunoval

Esca & Marcus: Esca falls in love, and Marcus worries that his and Esca's relationship will suffer for it. Spoiler: It doesn't. (Esca/OMC)

Marcus/Esca: Post-movie fic would be great, maybe something in which Marcus's leg worsens after they return with the Eagle, so that he must rely upon his crutch at all times and limit the amount of walking he does in a day. How does that affect him and his relationship with Esca? Or if you're interested in something completely different, I've always wanted a Viking AU in this fandom and haven't seen one yet.

If you only signed up to write Esca or Marcus, then backstory is always welcome: what shaped them into the men we see in the movie?

Werewolves. Kelpies. Any other British or Roman supernatural creature you're interested in. I don't really care for creature!fic in which Marcus or Esca is the creature in question (with the notable exception of werewolf fic, where I love it).

Frontier Wolf - Rosemary Sutcliff
Alexios Flavius Aquila, Alexios Flavius Aquila's Mother, Hilarion

Alexios/Hilarion: I'm very fond of tropes for this pairing: fake dating, huddling for warmth, sexswap, bodyswap, etc. I do prefer tropes involving issues of consent (e.g. sex pollen or made-them-do-it) to be as consensual as possible; trope subversion works particularly well for me in those cases.

Alexios's mother & Hilarion: melannen wrote an intriguing "Meeting the parents" section in this comment. I'd definitely be interested in seeing Alexios's mother interact with Hilarion, whether in the context of gen fic or as part of an Alexios/Hilarion story. Not necessarily when Alexios is recovering either; I very much hope Alexios would invite Hilarion to visit the farm with him at some point.

Alexios: Anything about Alexios being a good commander is my jam.

Alexios's mother: What kind of life does she lead on the farm now that her husband is dead and her son is grown; how does she spend her days; what hopes and dreams does she have (other than wishing success for her son)? Her half-brother is decidedly unsympathetic towards her, but does she have other family--including relatives of Alexios's father--with whom she has a closer relationship?

Hilarion: It's been done before, but I'm always up for another variation on how and why Hilarion came to be stationed with the Frontier Wolves.

Werewolves would be so much fun in this fandom! I'm particularly interested in werewolf!Hilarion, but either of the other two characters as werewolves would also work.

Lynes and Mathey series - Amy Griswold & Melissa Scott
Cordelia Frost

Miss Frost is hands down my favorite character in this book: competent, intelligent, highly sensible, and not quite what people expect her to be. I'd love a story about her university days, or her life outside of the office, or the progression of her career.

If you want to write a Trick, then Miss Frost having to deal with a mysterious supernatural threat of her own would be excellent.

Background Julian/Ned is very welcome, as is Miss Frost/OFC.

The Sleeper and the Spindle - Neil Gaiman

I really just want to know what happens to the Queen next. Romance, adventure, another creepy-scary quest?

Gen, Queen/OFC, and Queen/OMC are all welcome.

The Watchmaker of Filigree Street - Natasha Pulley
Grace Carrow, Katsu, Keita Mori, Thaniel Steepleton

Grace: Grace doing science in Japan! Does she ever make a breakthrough discovery and establish her scholarly reputation? Or in a different vein, how does Grace adapt to a new culture and/or fit into Matsumoto's family life? Do she and Thaniel maintain a correspondence?

Katsu: When and why does Keita build Katsu? Or any cute domestic scene involving Katsu would be great: Katsu and the people he lives with, Katsu and socks, etc. I'm also amenable to fic in which Katsu moonlights as the world's most adorable sex toy.

Keita: If you're up for a challenge, I'd love to read a story from Keita's POV. Outsider POV or a loose 3rd person POV are also perfectly fine, though. I really like Keita's building clockwork and am especially intrigued by the locust clock.

Thaniel: I'm interested in Thaniel's work as a telegraph operator, if you wanted to explore that.

Keita/Thaniel: Post-book fic focusing on their relationship would be the best. Their canonical romance is so very understated; I just want more. I do also enjoy Keita's and Thaniel's shared interest in piano playing.

(Note: Katsu's the only one of my requested characters for whom I'd like a Trick in this fandom.)

On his way home, Katsu encounters a Lovecraftian horror. No permanent psychological injury or character death, please!