An AU story that takes place about 5 years after Kate's undercover assignment at Belmont Women's Prison.
A season 5 AU story where Kate is recruited to go undercover at a women's prison to get information from the girlfriend of a Russian gang leader.
A silly little AU story that picks up where the original left off. Castle comes to visit Kate at her cabin.
AU story that reveals the missing segment from Time Heals All Wounds; by request
A Completely A.U. story in which a married Kate Beckett-Castle suffers a shocking blow in her life, and winds up using Simon Doyle to try to make things better again
An AU story: Kate moves in with Castle when her apartment is blown up during the Scott Dunn case during season two. She never left.
An AU story set where Kate has a second job as an agent for The Watchers. A secret group who, with the help of a room full of super computers, monitor everything and send their agents to make corrections to situations that their computers warn them of.
An AU story set just after the close of season 8. Rick and Kate are still recovering, and Kate has been having thoughts about where she wants her life to go.
A AU story which revisits that particular conversation that Castle had with Tom Demming near the end of Season Two. A one shot.
An early season one AU story in which Kate comes across a photo album that seems to have pictures of people who seem to resemble older versions of her and Castle. A one shot.
An AU story set in an alternate season 8. Kate is having a day of paperwork and politics as a captain when she should be in California with Rick and the family. Then it gets worse.
An after series story where Rebecca 'Becks' Beckett decides to go on a vacation and gets involved in an adventure she hadn't planned when she runs into renowned journalist Sue Thomas
A season seven AU. A different take on Castle's banishment from the precinct at the end of "Bad Santa".
We all remember the classic scene in the hospital after Kate was shot where she sends Castle away with the promise to call him. What if she actually did? An AU one shot story where Kate actually calls Rick.
An AU story where Our Kate Beckett from Season One suddenly finds herself in 2019. Ten years in her future.
An AU re-imagining of Kate's exit scene at the end of Season Eight's XX
An Au story set after a recognizable event that Castle and Beckett shared in season 3. Castle was able to disarm the bomb by pulling out the wires, but due to the poor shielding on the bomb, he got a dose of radiation which might prove to be deadly.
An Au story that ask: What if Kate had actually talked to Rick after having that conversation with Special Agent Stack
A Season 7 AU. Rick and Kate are happily married but someone is targeting Beckett's former lovers... including her current one, her husband.
A season 3 AU story. Castle thinks he's dying (he's not) He thinks he needs to find someone who can help guide Alexis as she transitions from high school to being a young adult. He can think of only one person for the job. He's going to ask Kate to marry him so she'll be around for Alexis after he's gone. A slight problem, Kate has a boyfriend who isn't Castle.