In Peters’s critically acclaimed novel, she explores another neglected but important issue: the inspirational story of a transgendered teen. Luna confronts the mystery, the confusion and the struggles of gender identity in this profound, heartbreaking, yet ultimately heartening story. Through the eyes of his sixteen-year-old sister Regan, struggling with her own adolescence, we witness Liam resolve to stop hiding in his basement bedroom, and become Luna to the outside world.