After the bombing in the episode "47 Seconds" - when Castle realized Beckett had been lying to him. But here they both realize how much is at stake and behave like grown-ups. He confronts Kate, and they manage to have a productive, adult conversation.
Post 'Teen Spirit" Rick, Kate, and Principal Duncan. New respect and old memories.
The rest of the conversation after "Dressed to Kill" - Short and fluffy
A short spate of Caskett foolishness
It's Castle's birthday, and one of his gifts is that his little girl is moving back home…without Pi in her life. He didn't think he could be happier. (Very AU after the May 3 episode and finale. LOL One of those stories that was intended to stop around chapter 3 or 4 but wandered off on its own.) Involves family, some excitement, and so much fluff I should be ashamed.