I got goosebumps reading the dust jacket synopsis.
What does it mean to be a friend? To have one?
Ghost Boy and Robot Girl take each other through the last year of high school, the last year of dependence on their parents — Though neither has been able to actually depend on his or her parents for a while. Each one serves as a floatation device for the other as they decide who they might be, struggle to find joy. In the end, though, a friend can’t determine the course of one’s life; Ghost Boy and Robot Girl must decide for themselves whether to sink or swim.
Moving, sad, completely believable.