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Ties That Bind by superlc529 reviews
Two bodies. Two murders, but they're connected. One body is in the jurisdiction of Castle and Beckett and the other Henry Morgan and Jo Martinez. They have to work together to find the killer. What could possibly happen when these two sets of partners join forces?
Crossover - Castle & Forever - Rated: T - English - Chapters: 3 - Words: 5,262 - Reviews: 6 - Favs: 2 - Follows: 3 - Updated: 7/22 - Published: 7/15 - Rick C., Kate B., Henry M., J. Martinez
Just One Wish by Sunshine Daises
Kate has been hiding something from the rest of the precinct. When her team finds out what her secret is, will they still accept her? Or will they shun her for keeping such a big secret from them? And more importantly, what will Castle think of Kate now that he knows her deepest secret?
Crossover - Labyrinth & Castle - Rated: T - English - Romance/Adventure - Chapters: 1 - Words: 387 - Published: 7/21 - Jareth, Sarah, Rick C., Kate B.
Ninja in New York by Magic Writing Dragon reviews
I haven't seen a crossover like this so I said "Why the heck not!" Now the ninja take a vacation in the Big Apple and something goes terribly wrong. What is it? Who is it? Who did it? All of the questions will be answered soon. Has the ninja, ocs, Castle, Beckett, murders mystarys, kidnappings, frams you know the norm for Castle and the ninja. K plus because of death.
Crossover - Ninjago & Castle - Rated: K+ - English - Mystery/Humor - Chapters: 10 - Words: 10,773 - Reviews: 12 - Favs: 2 - Follows: 2 - Updated: 7/16 - Published: 5/16
It's Never the Little Green Men by Jedi Buttercup reviews
John could hear the pair working the Wraith crime scene before they saw them: a rather excitable male voice doing most of the talking, and a firmer, slightly amused woman, offering the occasional counterpoint.
Crossover - Stargate: Atlantis & Castle - Rated: K+ - English - Chapters: 1 - Words: 1,956 - Reviews: 3 - Favs: 19 - Follows: 6 - Published: 7/15 - John S., Ronon D., Rick C., Kate B. - Complete
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: 5 - Words: 10,500 - Reviews: 5 - Favs: 1 - Follows: 3 - Updated: 7/15 - Published: 6/5 - Sam W., Dean W.
A Message By Murder by RoseFrederick reviews
Wizards don't like change very much, and it looks like one of them is determined to halt this so-called progress any way they can. Kate Beckett's team will have to help the Aurors at the NYAO stop it before it stops them - permanently. Sequel fic.
Crossover - Harry Potter & Castle - Rated: T - English - Adventure - Chapters: 8 - Words: 17,613 - Reviews: 6 - Favs: 9 - Follows: 7 - Updated: 7/11 - Published: 6/22 - Complete
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: 15 - Words: 48,924 - Reviews: 18 - Favs: 11 - Follows: 20 - Updated: 6/28 - Published: 10/8/2014 - Kate B., Rick C., Lux C.
Girl Meets Castle by tracey.costelle reviews
Maya works with Beckett and the gang, she hasn't spoken or seen Riley in 4 or 5 years, and has no family left except Lucas and the gang at the 12th precinct. Maya is turning 21 and the GMW gang get back together, but not for what they originally planned. it will include most characters from both shows. DISCLAIMER: i do not own Girl Meets World or Castle
Crossover - Castle & Girl Meets World - Rated: T - English - Chapters: 5 - Words: 9,484 - Reviews: 3 - Favs: 6 - Follows: 8 - Updated: 6/27 - Published: 12/2/2015 - Kate B., Alexis C., Maya H., Lucas F.
Remember by ChapmanM95 reviews
A one night stand gone wrong. Beta read by Kangaruby.
Crossover - Castle & Law and Order: SVU - Rated: T - English - Romance/Angst - Chapters: 14 - Words: 17,368 - Reviews: 5 - Favs: 9 - Follows: 34 - Updated: 6/24 - Published: 2/9 - E. Stabler, O. Benson, Rick C., Kate B.
The Tyranny of a Rational Mind by Saul Good reviews
Alexis and Castle approach a problem with logic.
Crossover - Buffy: The Vampire Slayer & Castle - Rated: T - English - Adventure/Family - Chapters: 5 - Words: 9,470 - Reviews: 12 - Favs: 16 - Follows: 40 - Updated: 6/22 - Published: 3/30/2014 - Rick C., Alexis C.
Mystery in The Library by Lorraine Anderson
Castle visits Flynn Carsen, and discovers that he has to solve a murder in a library that's more than it seems. Grimmoire # 3, Ashton Press.
Crossover - Castle & Librarians, 2014 - Rated: K+ - English - Mystery/Humor - Chapters: 1 - Words: 5,372 - Favs: 3 - Follows: 3 - Published: 6/6
Silver Lining by LilyCaroline17 reviews
A long time ago, Martha Rodgers made a deal with Rumpelstiltskin. Now, tragedy has hit the savior of Storybrooke and he has come to collect what he needs. Who will pay the ultimate price and will mother and daughter ever meet again?
Crossover - Castle & Once Upon a Time - Rated: K+ - English - Family/Hurt/Comfort - Chapters: 1 - Words: 550 - Reviews: 1 - Favs: 2 - Follows: 1 - Published: 6/6
Taking It Back by Stephensmat reviews
The Team from the 12th has faced spies and terror attacks before, but nobody's heard of The Division. Nobody had any idea how close to home they were, and Alexis certainly never thought she'd be recruited. But then three bodies arrive at the 12th after a police chase, and they weren't killed by any crash... Within 24 hours, there's no turning back.
Crossover - Castle & Division - Rated: T - English - Drama/Tragedy - Chapters: 7 - Words: 61,006 - Reviews: 26 - Favs: 34 - Follows: 40 - Updated: 6/5 - Published: 3/1 - Rick C., Kate B., Alexis C., Javier E. - Complete
Welcome To New York by Laura Ann Yates
When he moves to New York to become a professor, Harry Cunningham becomes Alexis Castle's tutor. After Leo Dalton's death, Nikki Alexander moves to New York to be with Harry and soon becomes good friends with Lanie Parish and Kate Beckett.
Crossover - Silent Witness & Castle - Rated: K+ - English - Romance - Chapters: 1 - Words: 1,856 - Follows: 2 - Published: 6/2 - Nikki A., Harry C., Kate B., Lanie P. - Complete
Fairy Tales and Castles by ColorsOfTheWind944 reviews
Henry Mills is going to college in New York. There he meets up with the Castle family. What will their crazy life be like now?
Crossover - Castle & Once Upon a Time - Rated: K - English - Romance/Family - Chapters: 7 - Words: 8,137 - Reviews: 29 - Favs: 29 - Follows: 32 - Updated: 6/1 - Published: 2/13 - [Alexis C., Henry Mills] [Rick C., Kate B.]
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: 42 - Words: 83,357 - Reviews: 86 - Favs: 35 - Follows: 52 - Updated: 5/30 - Published: 4/16/2014 - Rick C., Kate B., Captain America/Steve R., Agent Phil Coulson
Chasing Cars by That-Flying-Breadstick-Wizard reviews
When someone tries to kill the eldest son of a rich family, Beckett and Co. are put on the case. But, as always, there is more to it than they think... With interfering Lightwoods, copious amounts of intimidating redheads, and not-very-good writing, this author presents to you a fiction that you'll probably hate but might just love. Human!AU, Lots of MALEC.
Crossover - Castle & Shadowhunters - Rated: T - English - Mystery/Romance - Chapters: 11 - Words: 18,547 - Reviews: 11 - Favs: 9 - Follows: 13 - Updated: 5/27 - Published: 5/12 - [Alec L., Magnus B.]
How I Spent My Summer Vacation by ShirleyAnn66
Castle's at loose ends while Kate is in Washington being trained for her new job with the Feds, Alexis is in Costa Rica and his mother is doing dinner theatre in the Mid-west. His road trip to Canada is interrupted when he's passing through a charming little town called Haven, and strange things start to happen...
Crossover - Castle & Haven - Rated: T - English - Humor - Chapters: 6 - Words: 12,005 - Favs: 1 - Published: 5/25 - Rick C., Audrey P., Nathan W., Duke C. - Complete
A Whole New Rulebook by Time-Travelling Llama reviews
I have been watching a lot of Castle lately and I am addicted to Doctor Who and so this happened. When Castle and Beckett lose their case a strange turn of event leaves them stranded with The Doctor. I hope you like it :) and I'm sorry I'm not as good as Castle! :) Also this pre 47 seconds since series five hadn't aired in the UK but now it has :)
Crossover - Doctor Who & Castle - Rated: K - English - Sci-Fi/Adventure - Chapters: 23 - Words: 24,934 - Reviews: 36 - Favs: 26 - Follows: 39 - Updated: 5/22 - Published: 3/7/2013 - 11th Doctor, Jack H., Rick C., Kate B.
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: 15 - Words: 36,360 - Reviews: 17 - Favs: 15 - Follows: 28 - Updated: 5/14 - Published: 12/11/2014 - Chuck B., Alexis C., OC, Rick C.
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 qui disparaît sans laisser de trace?
Crossover - Bones & Castle - Rated: T - French - Adventure/Family - Chapters: 3 - Words: 4,126 - Reviews: 1 - Follows: 4 - Updated: 5/11 - Published: 4/23 - [Kate B., Rick C.] [S. Booth, T. Brennan]
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: 25 - Words: 39,347 - Reviews: 61 - Favs: 50 - Follows: 89 - Updated: 4/18 - Published: 11/6/2014 - [Kate B., Rick C.] Emma S., Henry Mills
Friend in Me by qjhayes11 reviews
One shots of the friendship between Kate Beckett and Jane Rizzoli. Everything from sports rivalries, and hilarious moments to family trouble and fighting for their lives in the ER. In series fun from both Castle and Rizzoli & Isles. Episode Titles for placement.
Crossover - Castle & Rizzoli & Isles - Rated: T - English - Friendship/Family - Chapters: 15 - Words: 61,079 - Reviews: 35 - Favs: 43 - Follows: 78 - Updated: 4/1 - Published: 10/25/2014 - Kate B., J. Rizzoli
A Charmed Murder by KevinPerrySangster11 reviews
Co-written with the shaymazing Rysposito. AU. Dead body on Castle's door takes the team to Sunny San Francisco, home of the Charmed Ones. My 1st xover with these 2 fandoms, 2nd overall. Chris Centric as well as The CO's. The next gen, husbands, Andy and Prue will also be appearing with Darryl too. Set mid S6 of Castle canon, 14ish years after the Series finale of Charmed, canonish.
Crossover - Charmed & Castle - Rated: T - English - Mystery/Supernatural - Chapters: 6 - Words: 7,681 - Reviews: 8 - Favs: 5 - Follows: 15 - Updated: 3/11 - Published: 10/29/2015 - Prue H., Chris H., Kevin R., Kate B.
Broken by LilyCaroline17 reviews
What happens when certain New York detectives meet the BAU team from Virginia. Will sparks fly? Will there be love or will there be heartbreak or both? Read to find out! Summary is bad but I hope the story will be great!-Emily
Crossover - Criminal Minds & Castle - Rated: T - English - Hurt/Comfort/Friendship - Chapters: 3 - Words: 3,226 - Reviews: 2 - Favs: 3 - Follows: 6 - Updated: 3/3 - Published: 1/25 - E. Prentiss, Jennifer J./JJ, Rick C., Kate B.
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