Season 2 finale AU. Lanie sees the disaster happening as Castle leaves with Gina. She talks to Beckett, then goes behind Beckett's back to stage an intervention. Life, love, cases, crises, etc. follow.

"She thinks he's just watching all of the girls, but then he's still staring at her when she looks again a few minutes later. He's not watching all the girls, he's watching her." AU. Kate's a stripper, Rick meets her at a bachelor party. Prompt fill.

"She should have gotten drunk and crawled into his lap ages ago. What had she been thinking? She would just have to make up for it now." A smutty AU post-ep for "The Limey."

A collection of unrelated oneshots inspired by prompts received on tumblr.

Christmas AU set during Season 4. Complete.

Beckett and Castle are stranded in a small cabin during a snow storm at Christmas time. Will the time alone bring them closer together? A season 4 fic.

Kate Beckett or, as you might know her, Nikki Heat has been in the business since she was sixteen years old. And everything was fine, or at least so she thought it was, until she met him. He wasn't like the others, he didn't understand it was a job. Because it WAS. A. JOB. It was HER job. Her job to satisfy his, and others', needs. But what does one do when the job turns into more?

Can The Christmas Guy convince the firm's new partner that putting up Christmas decorations is, in fact, not the end of the world?

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.

After Castle leaves with Gina in the season 2 finale, Beckett has a one night stand and comes to regret it. Will Castle stand by her or is it too much for him to handle. Maybe just a tiny bit of angst... This is an AU story.

"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*

"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.

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

She's falling down the rabbit hole of her mother's murder again, has taken a hold of their single lead and dug her claws in, and if she isn't careful, it will consume her, likely kill her. He won't let that happen. A Knockout AU. COMPLETE.

Third Installment in the Medical Attention Series: New York City was in a state of panic but he couldn't think about that right now, all he cared about was making sure his family was safe. S3 AU

The last thing Kate had ever expected was to fall pregnant with Richard Castle's baby while with another man. She also didn't expect to see the father of her baby and the man she had been falling in love with walk away with his ex-wife. Season 2 Finale AU.

"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.

It's hanging in the air, forcing her heart to tighten, squeezing the breath from her lungs. She can practically see the five tons of elephant mass squished into the corner booth the string bean of a hipster in a greasy knit cap has just abandoned. An AU one-shot based after the swing scene in Rise. Prompted by Meg (Castle in CA).

With the birth of her daughter fast approaching, Beckett gets a taste of what might have been. Season 9, Episode 21.

"You'll never be alone—not if you don't want to be." Caskett. Insert for 4x01 "Rise" goes AU from there.

"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.

For Detective Kate Beckett, getting to know her barista, Rick, better may end up being more than she bargained for. Caskett AU. Trigger warnings inside.

She's a professional. This is just like any other day, any other job. Any other job where her companion for the evening is a millionaire playboy and her favorite author. A Pretty Woman AU prompt fill for GoodLuckStana.

"She's so busy trying to blink back tears, trying to avoid the look her daughter'd given her as she was wheeled away, that she doesn't notice anyone else sit down in the waiting area, not until there's a small murmur of 'excuse me' and she turns to find a man sitting beside her, a small packet of tissues in his extended hand." AU meeting.

'He may have fallen in love with the city of Florence at first sight, but he thinks he fell in love with Kate Beckett even quicker.' AU. Loosely inspired by the film, 'Lost in Florence'. Two shot.

Kate Beckett never expected to find herself nineteen, pregnant, and motherless, but that was the hand life dealt her and she was dealing with it the best she could. She had finally decided to give her baby up for adoption when the baby's father showed up and complicated things. Richard Castle had a tendency to do that. (Caskett AU)

'His daughter is hopelessly smitten with her dance teacher, already attached, and she isn't the only one.' After enrolling Alexis in dance classes, Castle meets her talented instructor, Kate Beckett. AU. Three shot. For Alex.

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

'Kate Beckett is simultaneously a mom and a homicide detective, in no way does she have time for a relationship, let alone with someone like Castle and definitely not now, during the hectic holiday season. Even if he could apparently make her daughter smile easier than anyone else has in a long time.' An AU story for Christmas.

Collapsing down against her calves, Kate's neck hung forward and her shoulders hunched as sobs began resonating in her diaphragm. In less than one minute her entire future had been erased—evaporated and disappeared as if it never existed. Angsty AU Ending to Cops & Robbers (4x07)

"The call comes at nine in the evening. They've had nothing, literally nothing, not a single, solitary lead, and then suddenly, everything moves so fast, it makes her head spin." Spoilers for the - gasp - 6x23 finale. Enjoy. Chapter 35.

'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.

"You may not care, but I'm not losing you again," he states under his breath, his eyes a thunderous shade of blue burning bright in the darkness of night all around them. "Definitely not like this." A Castle Halloween Bash 2016 entry. Set during 4x22, 'Undead Again'.

Castle Fanfic Election Day entry! State Senate Election Night 2018. Nominee Kate Beckett anxiously awaits the results for her district.

In the wee hours of the morning, Castle texts Beckett with an unusual request. A piece of improbable mid-Season-3 silliness, based on two TFLN posts.

'It's a plush elephant, sinfully soft and grey, long floppy ears and velvety feet, soulful black eyes and a curved, downy trunk. And she doesn't even have to guess to know it was him. That Castle sent her this.' Set immediately after the summer that followed Beckett's shooting in 3x24, 'Knockout'.

"The ride lifts over the top of the hill, goes racing down and in front of her, hands fly free of the carts, screams echoing loud over the sound of the tracks beneath them. Richard Castle releases the cart, too. And takes her hand instead." A theme park AU. Two-shot.

a co-authored fic by jstar1382 and chezchuckles. takes place after 'Always Buy Retail.'

"Blinking long and slow, she turns, puts her profile to the ornate brass mirror. A thin, white line pulls at her skin, fainter now, but still tight. Still angry." A season four Castle AU made up of brief episode additions. Complete. Late Castle Halloween Bash 2016 Entry. :)

"I just went on a blind date and when I showed up to the restaurant, it was my ex-wife." A relationship AU. COMPLETE.

'Kate casts her gaze to the evening sky, momentarily ponders how she ended up here with a supposedly unlucky cat and a ludicrous writer both accompanying her home on Halloween night.' A Castle Halloween Bash 2016 entry. Set in season 3.

The last person Kate Beckett expects to bump into in an airport is Richard Castle and of course he's on her flight, too. AU After Season 1.

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.

In the season 8 finale, Richard Castle and Kate Beckett solved the most harrowing case of their careers only to be gunned down by a man supposedly dead. Did Caleb Brown survive? Was he acting alone, or was he sent by someone determined to eliminate Castle and Beckett once and for all? And will they be found in time? Season 9, episode 1.

Castle and Beckett go apartment hunting. Season 2 AU, post Boom. A co-authored fic by me, chezchuckles and jstar1382.

'Kate glances up from her place on the porch to the sight of Richard Castle approaching, concern drawing his brow into a furrow, but his eyes still light up at the sight of her, bright blue and shimmering. An unexpectedly welcome sight to her sore heart.' A 'Sister Cities' inspired AU.

AU post-3x15 "The Final Nail." Takes place after Kate goes for a drink with Castle before her dinner with Josh on Valentine's Day.

A 'What if...' for Need to Know - what if Beckett had been able to surprise Castle away from the precinct? *One shot, Complete*

a co-authored fic with chezchuckles. An AU version of the Nikki Heat episode. "How could he ever settle for a generic substitute when the original graced him with her presence every day?"

Alexis and Kevin fell in love but outside forces got in their way. Will they ever find their way back to each other?

When Johanna Beckett wins a contest to meet her favorite writer, Richard Castle, she's thrilled. Oppositely, her daughter simply doesn't see the appeal. One simple meet becomes the catalyst for a series of events none of them could have foreseen. Caskett AU. Castle Summer 2016 Ficathon Entry.

AU Castle. Based during the start of season 3. Kate is surprised that the man on the other line isn't her usual go to Chinese take out man.

"Their feet move in time together, dancing to a song that can't be heard, crickets creating a choir in the background and merging with the soft rippling of the river in the distance." One shot, post kill shot.

Kate Beckett lives and breathes gymnastics. Rick Castle is a freelance journalist looking for a gripping story heading into the Rio Olympics. Gymnast!AU. Inspired by a prompt on castlefanficprompts. For the Summer 2015 Ficathon.

'He's testing the boundaries, wondering how far down her wall has really fallen.' An alternate ending to Undead Again, 4x22.

It wasn't planned, wasn't a date, but when he'd shown up looking striking in his suit and with his arm empty, she'd gravitated to him like she always did, her whole body orienting toward him as if he was her shining beacon in a dark, starless night. Follows episode 4x11, "Till Death Do Us Part." -COMPLETE-

You're drifting. You know you are. You just... stopped caring.

She's shaking, her legs wobbly, fingers clamped around the doorknob as if it's the only thing keeping her upright. Her stomach tightens, with fear, with want, with everything she's so carefully held in check for months, years... What if for 3x22, 'To Love and Die in L.A.'. Happy Birthday, Joy! Winner of "The 12th" Fan Awards 2013 for best M-rated fanfic (under 10,000 words).

Esposito needs a little help with words. Castle is more than happy to oblige. Kate, however, has no idea what she's agreed to. And she agrees to far more than she planned.