AU starting with "Boom!" When Castle successfully meddles his way into Kate's past, he uncovers a secret that could break her. There are reasons why she's locked her memories up in the bottom drawer, but with Castle as her partner, things don't seem quite so impossible anymore. "Don't you see the starlight? Don't you dream impossible things?"

Kate's heart shatters upon the realization that Tyson has Rick. He's going to torture him to his hearts content until he decides that he's sick and tired of playing the game and then kill him slowly to punish her. She chokes on a sob, trying to shove the fear aside, focus on her one hope - a young, psychic Heiress whose ability is inexplicably linked to them (Dark/Supernatural/AU)

Castle thought he knew how much he had to lose after Alexis was abducted, but the nightmare is just beginning. Back in New York, their lives have turned upside down in an instant and instead of being by Kate's side, her partner is in Paris. Becomes AU during Hunt. This is rated M because of a graphic description (not sexual content).

When Beckett can't seem to keep her thoughts under control at the precinct, it's Castle who has to step up and fix the problem... Not that he's complaining. Smut... total, unashamed smut. Consider yourselves warned.

He never thought it could hurt like this. AU for 5x05, "Probable Cause."

Castle and Beckett goes undercover at a marriage counselling retreat to catch the killer... Along the way, they will have to act like a married couple... with sex therapy included. What's the worst could happen, right? -Extreme language&sexual.

by Cora Clavia, Sandiane Carter, and chezchuckles. Fantasies become reality.

Castle has a plan for Kate's birthday, but then it eventually morphs into a sub-plan to pull a fast one on Lanie and the guys. Caskett moments in this one. Total AU. *Complete*