AU – return to the pilot episode. Imagine they did go to dinner to debrief and then kept their personal life a secret.

Rick has been on a 2 month book tour and their 8 month anniversary is approaching. Everything is fine until his calls and texts suddenly stops coming. Where is he and what is he up to?

Collection of non chronological one-shots expanding on the 'Five Little Monkeys' world. Cover art credit to Angie (@Dtrekker on Twitter) Rated T for minor language and sexual situations.

What if Castle and Beckett stayed behind at the Old Haunt, alone, after everyone had gone? Post-Last Call AU.

This is an AU story that begins during "Food to Die For." Castle finds something wrong with the way Perlmutter says that Wolf died. When Beckett checks out his suspicions, it leads to a much bigger plot. And there is Maddy Queller and Kate's growing uncertainty about Demming. Cover image by @Artifex Prime.

What happens when Gates finds out about Beckett and Castle's relationship? How does Castle prove his worth to the Captain? Will he be able to stay at the 12th Precinct or will the partnership be broken? Starting sometime in mid Season 5 - pretty much fully AU from then on.

"All I want this Christmas is just to be here, to remember. But if I can't do that… I want to make new memories, build new traditions to go with the old." An AU that takes place immediately after the events of 3x24, Knockout. Set during the Christmas season.

When Kate Beckett sublets a new apartment, the last thing she expects is to meet Richard Castle's spirit. Based on the film "Just Like Heaven."

This is a story about a former military and ex-spy. A man working as an NYPD detective for 13 years full time. This is a story about a man named Richard Castle and this is me peeling his Castle onion. (Castle Ficathon 2017)

Continuing the three words prompt-fills from tumblr.

Beckett returns to the precinct to find that things have changed more than expected. Set early in Season 4.

"Because he's supposed to be..." In love with her. Wait, had she said that out loud? An AU fix-it for 4x5 "Eye of the Beholder."

What would you do if you had the power to save someone's life and give them the closure that they are so desperately seeking? Would you do it? Richard Rodgers was a committed and honorable soldier. With his beliefs, there were no gray areas only black or white. On one disastrous day that had all changed and he was now doubting his purpose in life. Until he met one Kate Beckett...

When tragedy strikes, sometimes help come from the most unexpected of places to help you pick up the pieces.

Beckett recollected her summer in self imposed exile and the reasons behind it.

Castle Ficathon 2017: The party of our lives AU Meeting- Kate is 19 years old and Rick is 24 when a party changes their destiny.

I don't own the show or recognizable characters. This is a fic about au meeting, not my idea KB was born in Australia; her parents were invited to work in a new firm in US so they moved when she was at high school. Months later her mom was killed and now Kate is a 27 years old detective at the NYPD and needs a green card

Goes off canon after 8x02. When Rick lands in the hospital after a traffic accident, he reminds Kate that anything can happen. "The best way to keep me safe, Kate, is to keep me close. Back to back, watching each other's six." Even while they're watching, they're racing to solve the puzzle of LokSat and Rick's lost summer.

Soulmate AU. Once upon a time, every person had two heads, four arms and four legs, but only one soul. Split apart into two separate bodies, the souls were fated to wander the world alone until reunited, their skin sparking with knowing when they touched for the first time.

The days bleed one into the next for ME's at the OCME's office. The heat is unbearable which raises tempers in the city. People are being murdered at an alarming rate. That is until many people are murdered in a similar way from a case long ago. Is there a connection or is something more happening that they don't know about? Something they can't stop?

Photographer Kate Beckett and aspiring novelist Rick Rodgers are perfectly content in their solitary lives. But it's only after an unlikely matchmaker conspires to have them meet that they realize how extraordinary their lives could become. A Castle AU for Summer Ficathon 2016 co-written by airbefore and caffinate-me.

Kate Beckett has to return back home after her mother is murdered. She was left a small book shop that her mother owned. The shop is slowly being put out of business by the much larger and powerful chain bookstore. She'll do just about anything to save her mom's shop.

When Castle finally loses hope and starts pulling away, he decides to go on one last case with Beckett that takes them to upstate New York. Tensions quickly begin to rise as she fights to tell him how she really feels. (Mid S4, COMPLETE W/ EPILOGUE)

Beckett overhears Castle telling Demming that there's no flag on the play, which comes on top of an unsuccessful stay at the loft and a case which reopens a less-than-pleasant time in her past. AU of the second half of S2. Please see warning inside.

For Castle Mini-Ficathon 2017: Kate is on maternity leave after having given birth to Lily. Life should be perfect, but then...

'He isn't sure where she has gone, but it's obvious she wants to be alone. Or at least, without him. Until nearly a month into the summer when his phone chirps with a new message. From Kate Beckett.' Set during the summer after Beckett's shooting.

Castle would be the first to admit that their deep friendship was unexpected and slightly peculiar given how different their lives were. Then again, perhaps that was why their bond was as strong as it was; those two descriptors perfectly illustrated the circumstances surrounding their initial meeting. Perhaps it was the path they were destined to walk. Caskett FFYG-AU

Detective Kate Beckett was shot. She succumbed to her injuries after eight hours on the operating table. She died. At least, that's what her family and friends were told. In truth, she survived and was placed in witness protection. Now, after three years, she returns home. Castle Ficathon 2017 entry.

This is my entry to CastleFicathon2017. It is AU and begins during the opening of Rise when Josh shoves Castle. In this version, Castle is injured, changing the trajectory of events. This is independent of my other stories.

When Richard Castle finds a dead body near a boat home he's renting for the summer, he triggers events that introduce him to him a world, and a woman, that are beyond anything he's ever imagined. AU

From the moment he saw her, he knew she was extraordinary. Spoilers for Still.

This is Castle future history that takes place after Life Goes On and Distress from the Dungeons, in the same universe. If you haven't read Life Goes On, you've missed the 7 years that precedes this. They have the kids and the life shown in the final seconds of Castle S8. Of course I own nothing Castle.

'The woman is staring at them, frozen for a second, and while he briefly registers how stunning she is, it's the two men standing behind her with guns in their hands that really catch his attention. He suddenly wishes he had asked Eli what his mother does for a living.' AU. Entry for Castle Ficathon 2017.

Det Rick Rodgers was handsome, sexy, funny and unquestionably Kate Beckett's favorite among her coworkers. Their two year partnership led to her calling him a friend-more so, if he was interested, but that was the problem: he seemed to be interested in every available female-except her. Caskett AU. For Castle Ficathon 2017.

"What may be broken to you is beautiful to me." 4x01 AU: Sometimes you don't have to runaway to find what was meant to be… *2016 Summer Ficathon*

An AU meeting. Richard Rodgers is a homicide detective raising a daughter who is assigned a young Kate Beckett as his partner. They both have their share of secrets. COMPLETE - For Now

Traveling to the West Coast for their book tour Castle and Beckett see new places and old and visit their California friends on their way from San Francisco to San Diego. An unexpected circumstance during their trip brings them to an old acquaintance and the fact that fire cannot conceal what is evil. Twenty-fifth in the Beware Of Darkness series. Caskett pairing. Complete.

"It's him," her colleague answers and it's the solemn tone of his voice, the grave quality of words that she's heard in only the most dire of circumstances, that confirms it for her before he has to say another word. "It's Castle. They found him. Alive." AU. An entry for the Castle Ficathon 2017.

A collection of prompts received on tumblr, all consisting of only three words. (excludes the Dash related fics, which I will post separately). If a prompt had a follow-up scene, those will be posted all together in one chapter. A scene with season 8 spoilers will be noted at the beginning of the chapter.

She doesn't understand what happened between them, why it all went south. And at the touch of a hand it all comes rushing back to her, a wave of heavy emotion hitting her directly in the chest. Her eyes fall shut and she knows she's showing her hand, her heart, but god, she could have sworn they were headed somewhere five months ago. Probable Cause (5x05) AU

Rick is a fireman. His wife left him a year earlier, took his twelve year old daughter with her. Kate is a homicide detective. Young but savvy, knows what she's talking about. One day, Rick goes into a house fire and something goes very wrong and Kate and her team are called in to investigate.

Castle's adventurous and creative courtship of Katherine Beckett. Just like Castle, Andrew Marlowe and his band of cronies have wooed us into playing in his adventure park. Thanks for your inspirational characters and for letting me hang around the sand box. Set during season five.

A post ep. 2x24 story, based upon a prompt I happened upon which had its author hoping to read about Rick and Kate's weekend in the Hamptons that never was, one that began as platonic but became a bit more.

'He wants her. He wants her so much, it's naked and gleaming in his gaze, but he thinks he can't have her and she has to fix it.' Set post 4x21, 'Headhunters'. For the #CastlePornado.

5x02 scenario where Castle leaves to go on the date with Kristina and Kate texts him to tell him to go to her place instead. Written for the Castle Pornado!

Rick finds an old HAM radio. Thinking it will be a good birthday gift for Kate he gets it and gives it to her. He realizes all too late that his gift will bring unexpected circumstances and terrible events right to his doorstep. After her first time using it, he can't remember anything. Based on the movie Frequency released in 2000.

Some of the ways they got to know each other during Beckett's suspension. Shameless smut for the #CastlePornado.

Busy single mom Kate Beckett doesn't have time for unnecessary distractions, particularly from a certain mystery writer she meets on the subway. Then again, he might just be the exact thing she's been searching for. Caskett AU. Trigger warnings inside.

A young Kate Beckett goes to a party. A young Rick Castle accepts a dare. What could possibly go wrong? An AU pre-series Caskett meeting.

They're both muddling through life. Her days are full of politics and paperwork. His are spent surfing the web in his underwear and buying gadgets to drive his mother crazy. Could a charity auction be what Captain Kate Beckett and novelist Richard Castle need to find their way together? Or will fumbles and stubbornness keep them apart? AU. A Castle 2015 Hiatus Ficathon story.

"That was amazing. The way you kissed me." An AU moment for 3x13, 'Knockdown'.

"Beckett," Castle calls, dropping his forehead against the door's frame while his arm remains upright, mechanically slamming his fist into the surface of the door. "Why aren't you answering?" Ah, definitely drunk then.' A season 4 AU set between 4x21, 'Headhunters', and 4x22, 'Undead Again'. For AC.

With summer upon them Castle and Beckett start their vacation with their family and friends in Ireland. They explore new sites and visit family, going around the Emerald Isle in anticipation of their fifth anniversary and wedding. Twenty-fourth in the Beware Of Darkness series. Caskett pairing. Complete

'Someone had kidnapped them. Handcuffed them together in what appeared to be a basement, the longer he studied their surroundings, and left them here with no apparent way out. All while Beckett was in the midst of a cold that suddenly sounds and feels far worse than it had this morning.' An AU take on 4x10, 'Cuffed'.

It's a week past Kate Beckett's due date, and everyone is getting impatient - coworkers, family, friends, enemies - but will there be time for Castle and Beckett to close one more case before their daughter arrives? Season 9, Episode 22 - SEASON FINALE !

"The question is this: when you come right down to it, would you be willing to break her out of prison? Because that, my boy, is true love." AU.

It's Beckett's final day of work before maternity leave, and she's expecting it to be uneventful. But when the precinct is cut off from the outside world, the race is on to catch a killer in their midst. Season 9, Episode 19.

"Detective Castle, this is Katherine Beckett, famous mystery novelist with 26 bestsellers to date, perhaps 27 soon if this all works out. And your shadow for the foreseeable future." AU.

Castle takes a 'Castle-flavored' case a little personally, while Beckett questions what her professional life will bring once the baby is here.

A pair of flower-shop murders gives Beckett and her team quite a thorny mess to untangle. Meanwhile, Castle and Beckett have an important decision to make. Season 9, Episode 14.

Maybe she shouldn't have been so hasty in turning down the dinner and debriefing. Was it too late to change her mind? A silly little FFYG insert for your entertainment.

'He doesn't truly know what they are – broken up, on a break, straddling the line between the two. All he really knows is that they can't be over.' A series of tumblr prompt fills with the common theme of being a 'post break-up AU'.

The team from the Twelfth investigates a murder straight out of the crazy world of fandom, as Castle's own writing struggles have him questioning his future.

With their daughter's birth on the horizon, Beckett and Castle take a much-needed "babymoon" vacation. But when a guest at their luxury resort dies under suspicious circumstances, they find themselves juggling their own R&R with finding a killer.

A collection of holiday themed prompt fills and one shots. Cover art by the wonderful Nadia.

(Season 4) It's almost Christmas, and things had been going pretty well between Castle and Beckett. But now a new complication has developed...

This story begins when Kate and Rick are lying bleeding on the floor and holding hands in Ep 8-22. It is meant to fill in the seven year gap left by the writers. Kate wants to do bigger things to clean up the kind of corruption that allowed LokSat to happen. Of course I own nothing Castle, but soldier on with it's passing. CastleFicathon2016

'It's been over a year since he last saw her and after all this time, of all places, he's literally bumped into her in the middle of Paris.' A post 3x24, Knockout, AU.

"I thought you were asleep." "Dozing," she hums, eyes drifting the length of his body now she sees exactly how little he went wandering in. Just the shirt. An Always M! insert. Based on a prompt from the CastleFanfic Blog and written for #CastleFanficElectionDay

The moment they met, their lives became extraordinary. They just didn't know it yet. A pre-series meeting AU. Entry for the Castle Summer Hiatus 2015 Ficathon.

AU: Rick Castle goes on a writing retreat and meets a mysterious stranger.

Castle receives an unexpected visitor. Set during the Season 8 "fake separation" arc. Unrepentant PWP.

A wishful-thinking retelling of the couch scene from "To Love And Die In L.A." What if Castle had still been there when Beckett reopened her door?

He's going to feel it tomorrow, but it's worth it. It's definitely worth it. He'd do anything to make his wife happy, and the look on her face when she saw her bike, the love shining from her eyes; it makes up for everything they've gone through. An 8x18 post-ep, posted in honor of Castle Pornado. COMPLETE.

'Anything you desire this morning, I'm happy to do it for you.' Set the morning of Cloudy With a Chance of Murder, Castle and Beckett end her suspension on a high note.

Boys will be boys, but hen you're outnumbered three to one life is going to be interesting.

Kate's rescue becomes the linchpin of change in her relationship with Castle, and events from that night lead to resolution for them both. **Voted Best Crime Fic on The 12th Precinct Castle Fanfiction Awards.**

AU: Violinist Kate Beckett is both nervous and excited that superstar composer Rick Castle is guest-conducting the New York Symphony's holiday concert. But when a murder takes place in Symphony Hall, Kate and Castle find themselves collaborating on more than just music. Entry for the 2015/2016 winter hiatus ficathon.

"She has the passing thought that she's even colder now than she was that afternoon in the grass, finding it harder to breathe than when a bullet had pierced her chest. His words always come at the wrong time." A one-shot of frustration and fear, set during Always (4x23).

"It's one thing to stop by unannounced when they're in the middle of a case and he's excited about a theory; it may be a weak excuse even then, but he can usually make it work. But now he has nothing but a small box of comic books and an uncomfortably strong heartbeat and he just needs to knock and get over it." Post-ep for Heroes and Villains (4x02).

He's never far from her thoughts, hovering in the back of her mind. The Detective in her, (not the warm-blooded woman, she keeps telling herself) yearns to know why her favorite author disappeared from the spotlight after completing the Storm series. She's never more shocked when a year later he steps off the precinct elevator, searching for her. AU/Romance/Co-written w/Retired1984

What would've happened if Kate had called Castle before going back to work in Rise? A season 4 AU. An extremely late 2014 Summer Hiatus Ficathon entry.

AU. Rick's completed the Storm series and is looking for a female muse for inspiration. He hears about the stunning, illustrious Diamond through an exclusive men's club and decides he has to meet the high-end escort for himself. He's amazed by her hidden depths and floored by the realization that he just might not be man enough to handle her. (Romance/Angst)

Her heart was still in jagged pieces after the summer. The sequel to 'still our hands match'. Takes place throughout season 3. AU. Cover art by ournorthstars.

Post 6x17. Kate and Castle try to come to terms with the aftermath of the botched undercover assignment. AU after Elena leaves Kate in the woods. Starting out T-rated, but will switch to M-rated at some point. Spoilers for last 2 episodes of the Season.

"Why do you even care so much? What is it that you want so badly that you can't just let this go so we can both move on with our lives?" Set in the summer between 1x10 and 2x01, continues on throughout season 2. Cover art by ournorthstars.

[(Fill for tumblr prompt; full prompt inside.) S6 insert.] Castle finally discovers Beckett's fansite identity and winds up learning some very surprising secrets, creating some secrets of his own along the way.

The everyday lives of an NYPD detective, a New York Times Best Selling author, their friends & family. Their hectic schedules and what happens when fans cross the line. Set sometime in the fall after "Probable Cause" I do not own nor would I ever claim the wonderfulness created by Mr. Marlowe and company. Just taking them out for a spin or two. *Please review. Thanks!

It should have brought them closer together, not torn them apart – she understands this now. What she doesn't know is whether any way back for them still remains. Future fic - Complete. **Winner of 'Favorite M rated Fanfic Multi-chp' in the 2013 Castle Fanfic Writers Guild Awards**

Sequel to Bated Breath. Tragedy has left chaos in its wake and they are all tasked with picking up the pieces of each other's lives. ***I apologize but this is on hiatus***

No more hiding in relationships with men she doesn't love, no more hiding from the truth, no more hiding from her feelings. This is a journey through unseen and AU events in S3 and early S4, including the beginning and end of Beckett and Josh, and the aftermath of her shooting. I didn't like Josh either so don't be put off; all roads eventually lead to Caskett. T rated epilogue up.

SEQUEL TO FINALLY! Updated Summary... The case is over, Beckett and her team succeeded. Castle's wounds healed. Kate's wounds from her encounter with Maddox are almost healed...Maddox is dead..Beckett turned down Jordan's offer to help catch the dragon...Castle and Beckett's relationship continues to deepen...My story is now COMPLETE

"So you liked it?" - "Yeah." - "Even the part where..." - "Especially that part. I loved that." The reassurance tumbles from his lips, so eager and blissful, the memory sharp behind his eyes, stealing his breath all over again as he remembers... Episode insert for 5x01, 'After The Storm.'

Cat's out of the bag for both of them, and Castle is crushed in the wake of the truth. Because if she cares for him at all - then how could she do this? ***Finalist for 'Best Drama' in the 2012 Castle Fanfiction Awards.***

She had lost her captain—her friend and mentor; she could not lose him as well. Not when there was so much left unsaid, so much more that she wanted to tell him, that she needed to tell him. Post-KNOCKOUT AU.