Anna is more than shy. She is nearly invisible. Most of the time her mother and sisters don't see, hear, or pay attention to her. At seven, terrified of the prospect of school, Anna retreats within their enormous Victorian house, and builds a house of her own: passageways and hidden rooms become her world. As the years go by, her family forgets she ever existed. Then a mysterious note is thrust through a crack in the wall, and Anna must decide whether or not to come out of hiding. Her life may seem like a fantasy -- but there is nothing more real.