She stands on the doorstep and I catch my breath. Everything about her reminds me of my beloved mom, whose funeral was just a week ago. And when she says her name is Audrey - the name of my baby sister - my world falls apart. Because Audrey died in a car crash when I was a toddler. At least, that's what my mother told me. Afterwards, my father couldn't cope with the grief, and he left us. She brought me...