A thirteen-year-old boy's life revolves around hiding his obsessive compulsive disorder until a girl at school, who is unkindly nicknamed Psycho Sara, notices him for the first time and he gets a mysterious note that changes everything.

Twelve-year-old Sarah writes letters to her hero, To Kill a Mockingbird's Atticus Finch, for help understanding her mentally ill mother, her first real crush, and life in her small Texas town, all in the course of one momentous summer.

1919. Mama is ill. Father has taken a job abroad. Nanny Jane is too busy to pay any attention to Henrietta and the things she sees - or thinks she sees - in the shadows of their new home, Hope House. All alone, with only stories for company, Henry discovers that Hope House is full of strange secrets: a forgotten attic, ghostly figures, mysterious firelight that flickers in the trees beyond the garden. One night she ventures into the darkness of Nightingale...

"When she learns that her mother is sick in Ohio, Mim confronts her demons on a thousand-mile odyssey from Mississippi that redefines her notions of love, loyalty, and what it means to be sane"--