'She doesn't know where she is, only that he isn't here, that amidst all of the pain surging through her veins, she's more acutely aware of the harsh emptiness in the middle of her chest. She can't determine if it's because the bullet shattered her heart, or if it's because he took it with him when he left.' A Castle Halloween Bash 2017 entry. Set post 3x24, 'Knockout'.

Collapsing down against her calves, Kate's neck hung forward and her shoulders hunched as sobs began resonating in her diaphragm. In less than one minute her entire future had been erased—evaporated and disappeared as if it never existed. Angsty AU Ending to Cops & Robbers (4x07)

Castle tells his epic tale of manly valor as he escorts Beckett out of her burning apartment building during "Boom." Episode insert/Tumblr prompt fill from Kristungen.

Kate marries Josh but says Castle's name at the wedding. Based on the Friends Episodes 4x23 and 4x24 'The One With Ross's Wedding' and prompted from the Castle Fanfics prompt blog on Tumblr.