[ Normally, Clara would never tell anyone what she knows about the Doctor, what he's shared with her, or at least let slip. She knows so much, but he isn't here anymore, and when he was, he trusted Caitlyn. She's still careful though, not spilling every fact. At least not yet. Using the handkerchief she wipes at her eyes and takes a deep breath, letting it out as she shakes her head. ]

His family is all gone. His planet, his people. I think I've mostly told everyone here who needs to know, but at home, unless you're with him, I don't know if anyone would ever really know exactly when he dies and regenerates.

[ In all the haze of her thoughts, and in telling those who needed to know, she can't remember who she's explained regeneration to and who she hasn't, so the words come with no further explanation. ]