My ex vanished from my life six years ago. Then I spotted her asleep at JFK beside two little girls with eyes that looked exactly like mine. Before I could reach them, I overheard my mother say, “Their mother should’ve known where she belonged.”

My sister stopped mentioning Rosie’s name at family gatherings.

Everyone knew.

Everyone helped us keep the secret.

Once in a while, usually when David and I were alone in the car, he would say,

“She deserves to know.”

And I would answer,

“Know what? That she had a sister she never even got the chance to remember?”