Thirteen. [ Caitlin's voice echoes his disbelief. If he's 29 and his daughter is twelve, then she would have been born when he was... 17. Eighteen, if he hasn't had a birthday this year yet. The thought just highlights how different her life was, how not normal. At 17, she was already in grad school, surrounded by people who were both her "peers" and roughly ten years older than her. Having sex, let alone getting pregnant, was nigh imposible.

And at Zoe's age... she'd already lost her dad. ]

My dad always said every time he blinked, I'd gotten older. On my birthdays, he'd tell me I wasn't allowed to get older anymore.