Fifteen-year-old Eleanor Fromme just chopped off all of her hair. How else should she cope after hearing that her bully, James, has taken his own life? When Eleanor's English teacher suggests students write letters they'll never send, Eleanor writers to James. With each letter she writes, Eleanor discovers more about herself, even while trying to make sense of his death. And, with the help of a unique cast of characters, Eleanor not only learns what it means to be inside a body that does not quite match what she feels on the inside, but also comes to terms with her own mother's mental illness. Told through a series of letters and set against a 1993-era backdrop of grunge rock and riot grrl bands, the novel depicts Eleanor's extraordinary journey to solve the mystery within her and feel complete. Along the way, she loses and gains friends, rebuilds relationships with her family, and develops a system of support to help figure out the language of her queer identity.