In 1874, at the age of four-and-a-half, Thomas Stanton realises that 'Thomas' is a boy's name and that everyone, even her mother, thinks she's a boy.

So begins the extraordinary journey of a transgender girl who must not only try to understand what it means to be a girl inside the body of a boy, a century before there was even a name for it, but she must soon find some way to change her body before the horror of puberty casts her as a man forever.

This is one girl's breathtaking fight to survive as herself, and to be loved for who she is.