Never Say Never Again. Castle flies Beckett to the heart of the Congo to track down his father and hopefully acquire the missing elements of the regimen.

post-ep/fill-in for 6x17 'In The Belly Of the Beast'. Kate makes her way back to him.

In response to seilleanmor's filius est pars patris, a continuation of This Is the Dreamworld that allows Rick Castle to be alive and present for his child's birth. Not necessary to have read mine or hers, just know that Castle's 'Dreamworld' surprise arrival in DC left Kate Beckett knocked up.

a kind of post-ep continuation of 'Smells Like Teen Spirit' 6x15. thanks to detectivekbeckett on tumblr for the prompt: clearly castle and beckett have both heard "In My Veins" before this episode.

post-ep for Deep Cover. After seeing how happy it makes her, Castle is in a wedding planning mood.