Hattie’s mom has died, leaving Hattie alone with her gruff, grieving father. After Hattie chops off her braids in a fit of rage, Hattie’s Pa buys her some boy clothes, introduces her as Harley, and trains her to help him as a river man. While she misses her Ma, Hattie begins to find some joy in her strange new life as a river rafting”boy.” When she and her Pa take a dangerous journey down river, Hattie begins to realize that there’s more behind her Pa’s silence than she first thought. Hattie is a strong heroine who will appeal to middle grade girls who love Laura Ingalls and are ready for a more challenging character.