Partners Kate Beckett and Richard Castle bond over their unhappiness with their respective marriages. Non-Soulmate-Soulmate-AU. For Castle Ficathon 2022

SoM slight AU - what if The Captain had accepted his feelings for Maria before she returned from the abbey (after she left at the end of the party). One-shot

After the worst day imaginable, Richard Castle is given the opportunity to go back and time and do it all again, but can he change what happens or is he destined for heartbreak? Always (4.23) AU

A Caskett New Year's Eve one shot - Set in Season 4

A Caskett pre-show holiday meet cute

With Castle out of commission due to an injury, Kate decides to do something extra special for him. It is, after all, the holiday season. Set Mid-Season 4. Entry for #CastleFicathonWinter2021

Picks-up at the end of 6X17. What happens when Kate follows Castle into the bedroom. One-Shot.

Author Richard Castle stumbles across Assistant District Attorney Kate Beckett and is instantly captivated. Using his connections with the mayor, he gets himself a six week pass to shadow her. Kate begins to count down the hours, wishing the six weeks were up, not realizing those six weeks will change her life forever. AU.

Richard Castle has been set up to take the fall for a murder he did not commit. (Prompt: What if Probable Cause took place in S4, before Castle & Beckett were together?) Canon through mid-S4.

A companion to the final scene of 7x01. Kate & Castle reunite after his absence. Spoilers for 7x01. One-shot.

"You don't need to know my name in order to play; you just need to know the rules of the game, Kate. Didn't I tell you? We're going to play a game." Post "To Love and Die in LA" (3x22). What if Kate had to choose?

When Richard Castle learns his publisher hired a writing consultant to help him complete his latest novel he's insulted-until he meets her. Dr. Kate Beckett was merely looking for a summer job between semesters, but could three weeks with the famous writer might be more than she bargained for? Caskett AU.

Independent woman Kate Beckett struggles to find the right path for both her career and personal life, but when it comes down to it, will she be able to choose the path that's right for her, or will she let her fears get in the way? Sequel to Run. Caskett AU.

What if New York City was subject to another terrorist attack and Beckett became one of the first responders? Set Season 4, one week after 4x07 Cops and Robbers.

What if Castle & Beckett encountered a real time machine during an investigation? Set mid-Season 7, assuming Castle was never kicked out of the precinct and became a P.I. One-Shot.

Wrongly accused of two murders he didn't commit, Richard Castle escapes police custody in hopes of proving his own innocence. FBI Agent Kate Beckett is on the team assigned to bring him in, but as the bizarre evidence stacks up, she begins to question his guilt-particularly after meeting him face-to-face. AU. 2014 Ficathon Entry

Season 3 AU. Post-"Countdown" - What if Castle had been able to say the things he'd always wanted to?