53Battle of the Brains » by WRTRD Kate Beckett and her brain argue, as do Castle and his. Sometimes one wins, sometimes, the other, but it changes the course of various events in a number of episodes, sometimes in a minor way, sometimes in a major one. Begins after 1x04 ("Hell Hath No Fury") and will continue into S5. Castle Ficathon 2020.
T, English, Humor & Romance, chapters: 2, words: 6k+, favs: 29, follows: 56, updated: 7h published: 7/2, Rick C., Kate B.
2k+Second Chance » by imdoingthiswhy 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.
T, English, Romance & Family, chapters: 184, words: 845k+, favs: 335, follows: 531, updated: 9h published: 8/20/2016
143Another Second Chance » by castlefan6 Another What If based on the episode, A Deadly Game, what happened if Rick didn't return to the precinct after leaving and this was really their last case. What would each other's lives have looked like? The story starts with Canon dialog, courtesy of Dust Jackets Dot Com, then goes quickly and completely AU. The journey continues with a new Kate and Rick, hope you enjoy!
T, English, Hurt/Comfort & Romance, chapters: 29, words: 101k+, favs: 27, follows: 51, updated: 11h published: 6/14, Rick C., Kate B.
279Season Three » by chezchuckles An episode by episode tag for season three. Any AU versions will be marked.
T, English, Friendship, chapters: 12, words: 9k+, favs: 61, follows: 101, updated: 20h published: 1/29/2017, Rick C., Kate B.
2Castle: the private investigator season 2 by sailormoonatcj Kendall is investigating in robbery and homicide cases. Rated for some language
T, English, Crime & Drama, words: 1k+, favs: 2, follows: 5, 23h, Rick C., Kate B., T. Demming, OC
34Death Becomes Her » by penwithnopaper Second chance at life if you qualify. Hitler and Stalin don't qualify. Nor do a lot of people. But your second chance might not be what you think it is. If you even knew about it. Kate is about to get hers and it is going to cost her. Would you pay the price?
T, English, Sci-Fi & Romance, chapters: 7, words: 23k+, favs: 12, follows: 27, updated: 7/13 published: 7/2, Rick C., Kate B., Alexis C.
79accidentalmente » by mejv0071 accidentalmente, todo ocurre por accidente o eso pensó ella.
K+, Spanish, Romance, chapters: 16, words: 43k+, favs: 5, follows: 7, updated: 7/13 published: 5/1, Alexis C., Kate B., Rick C.
69Alexis Rodgers » by djinni14 This is the story of Alexis Rodgers. aka Alexis Castle. "Oh you're the daughter of Richard Castle. I'm so sorry." Snicker, snicker, laugh, laugh. "Poor child! To have him for a father."
T, English, Romance & Family, chapters: 22, words: 76k+, favs: 23, follows: 29, updated: 7/13 published: 6/23, Rick C., Kate B., Alexis C.
Again » by Sylwinter77 Castle e Beckett si sono incontrati solo una volta, durante quell'unico caso risolto durante il Pilot e da lì più nulla. Si rivedono solo alcuni anni dopo. E a quel punto inizia questa storia.
T, Italian, Romance, chapters: 3, words: 9k+, favs: 2, follows: 3, updated: 7/13 published: 7/1
Trame » by Unidui Un inizio terza stagione piuttosto movimentato e inquietante per Rick e Kate. Qualcuno del loro recente passato che vuole ancora vendetta e cercherà di averla seguendo strane TRAME
K+, Italian, Hurt/Comfort & Suspense, chapters: 6, words: 13k+, favs: 1, follows: 3, updated: 7/13 published: 7/5, Rick C., Kate B.
37 Somewhere Close to Me by Trinity Everett Amused at her husband's nervous antics, Beckett helps Castle prepare for a special night out with Lily. Caskett. Post-series fic.
K+, English, Family & Romance, words: 2k+, favs: 28, follows: 11, 7/12, [Kate B., Rick C.]
51Redemption » by Pen to Paper Writer Captain Kate Beckett of Army Counter-Intelligence, must team with dishonorably discharged Major Richard Castle to take down a terrorist group. Complete AU. My entry for the Castle Ficathon 2017.
T, English, Suspense & Drama, chapters: 10, words: 25k+, favs: 27, follows: 47, updated: 7/12 published: 5/19, Rick C., Kate B., Roy M., OC
12That was Yesterday » by djinni14 Kate has taken too long. Her friends and even her dad tried to get her to see. But she didn't or couldn't. Now it was too late. Kate's life revolves around two songs. One haunts her night and day. The other is the tale of her life. It haunts her in a different way. It sings to her in a different voice. "You don't know what you've lost till it's gone." I may add a chapter or 2 later
T, English, Tragedy & Hurt/Comfort, chapters: 2, words: 10k+, favs: 16, follows: 22, updated: 7/12 published: 7/8, Rick C., Kate B., Alexis C.
30relatos cortos(un viaje en autobus) » by mejv0071 pequeñas historias
K+, Spanish, chapters: 9, words: 9k+, favs: 3, follows: 6, updated: 7/12 published: 6/6
295Falling Down » by madreag Richard Castle is facing the greatest crisis of his life. He cannot reason or write his way out of this one. In this desperate time he turns to his partner Kate Beckett for advice and help. What follows surprises both of them. This AU takes place three years into the series.
T, English, Angst & Romance, chapters: 19, words: 73k+, favs: 62, follows: 169, updated: 7/12 published: 4/26, Rick C., Kate B., Alexis C.
92House Arrest » by Pen to Paper Writer Richard Castle was blocked in a way he had never been before. He needed inspiration and needed it now. Then his world fell apart when he found her. She was accused of murder and he knew she didn't do it. Could she be the answer to his problem, he sure hopes so. He'll do anything to start writing again even lying for a good cause.
T, English, Drama & Suspense, chapters: 10, words: 19k+, favs: 23, follows: 50, updated: 7/12 published: 5/13, Rick C., Kate B., Javier E., Kevin R.
134Quitting Time » by Pen to Paper Writer Kate Beckett was working herself ragged. She had the dream job but it seems that she can never get away to enjoy life. Her boyfriend Will decided to do something about it and take her away. They were going to be away for ten days but work somehow weaseled its way into their plans. What could possibly go wrong? Maybe everything! :)
T, English, Romance & Humor, chapters: 12, words: 25k+, favs: 25, follows: 64, updated: 7/12 published: 5/13, Rick C., Kate B., Lanie P., OC
194Butt Dial » by Netsrik1 AU of 'The Limey' Castle overhears Lanie when she butt dials him while talking to Kate in her apartment. How will he take the fact that Kate is 'crazy about him' even though she lied to him?
T, English, Drama, chapters: 7, words: 21k+, favs: 62, follows: 199, updated: 7/11 published: 5/30
460I'll Be Watching You » by Roadrunnerz Kate Beckett struggles with her demons after the Sniper case and, because of it, she's re-assigned to protect celebrity writer, Richard Castle, whose life is threatened by a dangerous stalker. AU-meeting fic set during season 4.
T, English, Drama & Romance, chapters: 19, words: 76k+, favs: 94, follows: 245, updated: 7/11 published: 3/23
10Castle: the private investigator » by sailormoonatcj Kendall is married to Rick Castle and investigating in murder cases. Some language
T, English, Drama & Crime, chapters: 10, words: 11k+, favs: 9, follows: 7, updated: 7/10 published: 7/1, Rick C., Kate B., OC
10What Changes Us » by Fellykins Kate Beckett was a strong, stubborn young woman with a dream to become the first female Chief Justice of the Supreme Court. She was following in her parents' footsteps, studying pre-law at Stanford University, when her whole world was turned upside down. It causes her to change, to become a different person, but one thing remains constant: her drive for justice.
T, English, Hurt/Comfort & Crime, chapters: 5, words: 13k+, favs: 13, follows: 27, updated: 7/10 published: 6/11, Kate B.
523Nothing Lost » by bingblot "Montgomery was dead. Beckett would be devastated. It didn't matter that Castle hadn't seen her in almost two years. Right now, in the face of this loss, all he knew was this overwhelming concern, this need to make sure she was okay." An AU version of "Knockout."
T, English, Romance & Hurt/Comfort, chapters: 19, words: 98k+, favs: 109, follows: 268, updated: 7/10 published: 1/10, Rick C., Kate B.
5Secrets » by Bruce-X-Selina aka BatCat A Caskett and Haylexis fanfic. Two people are holding secrets as they don't know how others will react. How will things go for them?
K+, English, Romance, chapters: 2, words: 4k+, favs: 4, follows: 12, updated: 7/9 published: 7/4, [Alexis C., Hayley S.] [Kate B., Rick C.]
21 The Assassination of Katherine Beckett » by greygoose70 So how does the saying go; if at first you don't succeed... (an A/U for S04/E01) Disclaimer: Property of AWM & ABC only. Has a 'M' rating for last chapter only. Story is complete chapters will be added as edited.
T, English, Drama & Romance, chapters: 10, words: 12k+, favs: 20, follows: 19, 7/5, Rick C., Kate B., Jim B., J. Shaw
365 Don't Give Up On Me » by skygirl55 When Richard Castle meets lawyer Kate Beckett on the subway he has no idea how she might change his life-and help him deal with his dark past. Caskett AU. For Castle Ficathon 2020
T, English, Romance, chapters: 15, words: 44k+, favs: 102, follows: 177, updated: 7/5 published: 5/14, [Kate B., Rick C.]