Oh... that's just heartbreaking, that they'd discover the truth about Ernest too late. Interesting, that this epilogue seems to be about looking backward and forward at the same time: closure with Sara. Closure with Catherine, and how lovely that Daniel knows her as a bedtime story. And going forward in the future - such a marvelous tagline you've given us!

I'll say it again: you've written one of the best AUs ever. Thanks for sharing it with us.