'Stop trying to be brave all the time, Rachel. Fear is a necessary part of being alive. Sometimes we have to let it show. We have to own up to it or it drives us mad.' Rachel Elliot is single and attractive, a director of a successful advertising agency, with a handsome lover, close friends, and a clutch of beloved godchildren. But as her fortieth birthday approaches, so does a whispering fear that she might have missed the...