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Light Wave by RhiStar reviews
Basically the show Castle with Lux. It takes place around the sixth season. It is told with the stories you know from the shows twisted in the new reality. Hope you enjoy it and don't forget to write a review to help me find a path.
Crossover - Castle & Life Unexpected - Rated: K+ - English - Drama/Family - Chapters: 22 - Words: 84,365 - Reviews: 38 - Favs: 13 - Follows: 26 - Updated: 1/13 - Published: 10/8/2014 - Kate B., Rick C., Lux C.
Jason Beckett by 1999Blue reviews
Jason Beckett had a pretty good life. That was until he decided to try and put a cow in the men's locker room. Now he is stuck in Saturday detention and helping his mom at the precinct. He meets a group of kids and becomes a Power Ranger. Let's hope he can keep this a secret from his mom and the rest of her team. (First story. Constructive criticisms is welcome.)
Crossover - Power Rangers & Castle - Rated: T - English - Family/Adventure - Chapters: 1 - Words: 458 - Reviews: 1 - Published: 11/26/2017
The Hunter by bossybossninja
Garruk is on a killing spree, hunting for the plansewalker that cursed him. Will Kate and Rick with the help of Jace and Gideon save the day? Crossover between Castle and MTG, murder mystery. Written with: Netsrik1 -Thank you for helping me learn about Castle!-
Crossover - Magic: The Gathering & Castle - Rated: T - English - Mystery/Crime - Chapters: 10 - Words: 26,423 - Favs: 3 - Follows: 5 - Updated: 11/20/2017 - Published: 10/26/2016
The Hunter by Netsrik1 reviews
Garruk is on the hunt for the planeswalker who cursed him. Showing up in New York City, he begins a killing spree. Castle and Beckett catch the case and try to make sense of it in their world. Will Jace and Gideon be able to convince Kate that magic does exist? Co-written with Bossybossninja.
Crossover - Magic: The Gathering & Castle - Rated: T - English - Fantasy/Mystery - Chapters: 10 - Words: 25,721 - Reviews: 13 - Favs: 7 - Follows: 10 - Updated: 11/20/2017 - Published: 10/26/2016 - Garruk W., Jace B., Rick C., Kate B.
Now that's what I call a close encounter by Pegship reviews
One way Castle and Beckett might have survived 8x22...with help from some friends from out of town.
Crossover - Men In Black & Castle - Rated: K+ - English - Humor/Sci-Fi - Chapters: 1 - Words: 1,031 - Reviews: 13 - Favs: 10 - Follows: 10 - Published: 10/29/2017 - Agent K, Agent J, Rick C., Kate B. - Complete
A Call to Arms by Almariado reviews
When investigating a case, Kate and Castle cross paths with the FBI's Fringe Division, but in the least expected way. Set on season one of both shows.
Crossover - Fringe & Castle - Rated: T - English - Crime/Drama - Chapters: 7 - Words: 19,987 - Reviews: 6 - Favs: 8 - Follows: 12 - Updated: 10/28/2017 - Published: 7/27/2014 - Olivia D., Peter B., Rick C., Kate B.
Interdepartmental Co-operation by Dave-ck reviews
"Why not?" Castle says, blue eyes dancing with excitement. He waves at Lucifer even as he, somehow, manages to continue scribbling, "I mean, look at this guy! I could do so many things with him!" 'Couldn't you just,' Lucifer contemplates, eyeing the man anew. [Caskett in L.A., hot on the heels of Royce's killer, run afoul of Detective Decker and her partner, the Devil.]
Crossover - Castle & Lucifer - Rated: K+ - English - Humor/Romance - Chapters: 1 - Words: 1,945 - Reviews: 5 - Favs: 13 - Follows: 14 - Published: 10/27/2017 - Rick C., Kate B., Lucifer M., Chloe D. - Complete
Asesinato En Dos Ciudades by TheGarci
Castle y Beckett investigan un asesinato cometido en el bosque. En poco tiempo se dieron cuenta de que el asesinato estaba vinculado con un asesino en serie de Filadelfia.
Crossover - Cold Case & Castle - Rated: T - Spanish - Adventure/Crime - Chapters: 2 - Words: 2,998 - Updated: 10/7/2017 - Published: 10/4/2017 - Lilly R., Scotty V., Rick C., Kate B.
Close Encounters of the Fourth Kind: Awakening by OnkelJo reviews
After the last crisis seems averted, the fates bring Jonny Gerthson back to Eureka for recuperation. However, things are heating up... Third installment of "Close Encounters of the Fourth Kind", allegedly the first Castle-Self Insert (SI) on this site. Castle Ficathon 2017 entry. Castle/Eureka/Chuck crossover. Cover art by @dtrekker.
Crossover - Eureka & Castle - Rated: T - English - Romance/Sci-Fi - Chapters: 6 - Words: 17,495 - Reviews: 5 - Favs: 8 - Follows: 11 - Updated: 9/28/2017 - Published: 9/8/2017 - Beverly B., Alexis C., OC - Complete
Richard Castle, Watcher by Starfox5 reviews
Richard Castle did follow his girlfriend Kyra Blaine to London when she left him, and his life changed one evening in a pub there. He didn't know that joining a group of vampire hunters would one day lead him to Sunnydale, and later to the 12th Precinct.
Crossover - Buffy: The Vampire Slayer & Castle - Rated: T - English - Adventure/Humor - Chapters: 26 - Words: 214,666 - Reviews: 93 - Favs: 228 - Follows: 246 - Updated: 9/24/2017 - Published: 8/8/2015 - [Rick C., Kate B.] Buffy S., Vi - Complete
Close Encounters of the Fourth Kind: Clash Of Worlds by OnkelJo reviews
After settling into my new life in the Castleverse, I thought I could catch my breath. I rarely was so wrong. I have to work with unexpected allies who shouldn't even be here to stop the world we know from unraveling. Just my luck, eh? Castle Winter Hiatus 2014 Ficathon Entry. Castle/Chuck/Eureka. Humorous Self Insert (SI) with actual plot ;) Cover Art by the lovely @dtrekker :)
Crossover - Chuck & Castle - Rated: T - English - Sci-Fi/Humor - Chapters: 20 - Words: 48,083 - Reviews: 22 - Favs: 29 - Follows: 42 - Updated: 9/8/2017 - Published: 12/11/2014 - Chuck B., Rick C., Alexis C., OC - Complete
Inesperado by Leviathan2.0
Richard Castle sabia que convertirse en padre iba a cambiar su vida, pero no imaginaba que su hija fuese una bruja.
Crossover - Harry Potter & Castle - Rated: K+ - Spanish - Family - Chapters: 1 - Words: 1,245 - Favs: 5 - Follows: 2 - Published: 9/1/2017 - [Rick C., Kate B.] Harry P., Alexis C. - Complete
El mago y el escritor by Leviathan2.0
Cuando el equipo de Castle encuentra un caso que no les lleva a ninguna parte, la CIA les envía a un asesor que hace sospechar a Richard que algo muy raro esta pasando.
Crossover - Harry Potter & Castle - Rated: K+ - Spanish - Mystery/Family - Chapters: 1 - Words: 2,376 - Favs: 10 - Follows: 6 - Published: 9/1/2017 - [Rick C., Kate B.] [Harry P., Alexis C.] - Complete
Un mystère, une enquête étrange! by blackwidow90legolas88 reviews
Trois meurtres ont été commis en une seule nuit! Plusieurs agences devront s'entraider pour résoudre ces trois crimes. Qui est ce tueur ou ces tueurs qui disparaissent sans laisser de trace?
Crossover - Bones & Castle - Rated: T - French - Adventure/Family - Chapters: 10 - Words: 11,719 - Reviews: 8 - Favs: 1 - Follows: 6 - Updated: 9/1/2017 - Published: 4/23/2016 - [Kate B., Rick C.] [S. Booth, T. Brennan]
Je m'excuse by RC.KB
Je suis désolée de vous déranger, mais c'est important.
Crossover - Castle & Rizzoli & Isles - Rated: K - French - Humor - Chapters: 1 - Words: 96 - Favs: 1 - Published: 8/17/2017 - Complete
Jedi Castle by The Dark Scribbler reviews
Rick Castle has had a hell of a day. Kidnapped, then rescued by a mysterious hooded figure...
Crossover - Buffy X-overs & Castle - Rated: K - English - Adventure/Humor - Chapters: 7 - Words: 13,453 - Reviews: 57 - Favs: 124 - Follows: 110 - Updated: 6/27/2017 - Published: 7/21/2014
Quand le surnaturel et la réalité se font face by Leelou67 reviews
Il y a du grabuge dans la ville New-York. Mais pas n'importe quel grabuge habituel, où les flics se mettent à pourchasser un meurtrier. Plus du genre de Sam et Dean. Ils pensent être prêts à ce qui les attend là-bas. Grossière erreur.
Crossover - Supernatural & Castle - Rated: T - French - Supernatural/Crime - Chapters: 25 - Words: 40,237 - Reviews: 56 - Favs: 5 - Follows: 6 - Updated: 6/10/2017 - Published: 6/5/2016 - Sam W., Dean W., Rick C., Kate B.
Il préfère la salopette by Ange.Phoenix Blodeuwedd reviews
[OS] Une rencontre atypique entre un écrivain parfois enquêteur et un agent du FBI dans une bibliothèque à New York. Et bien évidemment, une histoire de salopette...
Crossover - Criminal Minds & Castle - Rated: K+ - French - Parody/Humor - Chapters: 1 - Words: 740 - Reviews: 5 - Favs: 4 - Follows: 3 - Published: 6/10/2017 - Complete
Once Upon A Castle by 3detectives1writer reviews
When Castle and Beckett catch an odd case, Castle finds a story book that leads them to Storybrooke. Set in Season 3 Castle and Season 4 of OUAT. (Fic cover edited by myself)
Crossover - Castle & Once Upon a Time - Rated: T - English - Mystery/Fantasy - Chapters: 27 - Words: 45,837 - Reviews: 69 - Favs: 66 - Follows: 109 - Updated: 5/21/2017 - Published: 11/6/2014 - [Kate B., Rick C.] Emma S., Henry Mills
Castle in the Moonlight by Aoi Dragon reviews
I wrote this years ago and never posted it because I thought I'd continue writing. Nope. Now I've just decided to have it as a ONE SHOT. Summary: New York City is hit by a murder that looks like it's been done by a "vampire." Castle and Beckett investigate and meet a strange PI from LA. Enjoy.
Crossover - Moonlight & Castle - Rated: K+ - English - Supernatural - Chapters: 1 - Words: 1,163 - Reviews: 1 - Follows: 1 - Published: 5/19/2017 - Mick S. J., Rick C., Kate B. - Complete
kairos by thistableforone reviews
Her smirk is reassuring and, in spite of that, Kate shrugs, looking at the ground. She's powerless. It just took a cute, soft girl to turn her into a weak, timid mess. (Maura/Kate)
Crossover - Rizzoli & Isles & Castle - Rated: T - English - Romance/Friendship - Chapters: 12 - Words: 21,724 - Reviews: 24 - Favs: 11 - Follows: 27 - Updated: 3/19/2017 - Published: 7/30/2016 - Kate B., M. Isles
une enquête en duo by 2fansusv
le lieutenant Benson et son équipe enquête sur le meurtre d'une femme ayant subit un viol. Elle est aidée dans ses investigations par un lieutenant de la criminel du 12ème : Kate Beckett... et de son mari envahissant. parallèlement Liv doit gérer les petits tracas de Noah.
Crossover - Law and Order: SVU & Castle - Rated: K - French - Family/Crime - Chapters: 1 - Words: 11,974 - Follows: 1 - Published: 3/16/2017
Age of Miracles by Laura Picken reviews
The Guardians, the Avengers, and a 'few' of their friends and allies go to war against HYDRA and end up scouring the far reaches of the galaxy to protect the six Infinity Stones. AU to Avengers 2 and Season 2 of Agents of SHIELD.
Crossover - Castle & Avengers - Rated: T - English - Adventure/Fantasy - Chapters: 49 - Words: 96,172 - Reviews: 111 - Favs: 43 - Follows: 62 - Updated: 2/20/2017 - Published: 4/16/2014 - Rick C., Kate B., Captain America/Steve R., Agent Phil Coulson
Stuck In the Moment by RachhBee reviews
Seeley and Kate are brother and sister. They are kidnapped for 5 years. They escape and need a place to stay, they find an abandon hotel. Can they survive in New York? Rated T for now. I am horrible at summaries. Please read.
Crossover - Bones & Castle - Rated: T - English - Adventure/Romance - Chapters: 4 - Words: 6,471 - Reviews: 8 - Favs: 11 - Follows: 20 - Updated: 1/21/2017 - Published: 11/6/2013 - T. Brennan, S. Booth, Rick C., Kate B.
Daughter of Poseiden: Drowning in Dread by Psyche Castle reviews
"Peter Johnson" and "Anne Bell Cass" go to the 12th precinct helping solve the murder of their cousin. Kate and Rick don't know what to think of these 16 year olds barging in on them. Another thing that doesn't help is there may be a new demi-god going to camp soon. This takes place after the PJO series but before HoO and all seasons of Castle.
Crossover - Percy Jackson and the Olympians & Castle - Rated: K+ - English - Humor/Mystery - Chapters: 5 - Words: 9,392 - Reviews: 12 - Favs: 4 - Follows: 3 - Updated: 1/16/2017 - Published: 12/7/2016 - [Annabeth C., Percy J.] Alexis C., OC
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