Agnes and Honey have always been best friends, but they haven't always been so different. Agnes loves being a Believer. She knows the rules at the Mount Blessing religious commune are there to make her a better person. Honey hates Mount Blessing and the control Emmanuel, their leader, has over her life. The only bright spot is the butterfly garden she's helping to build, and the journal of butterflies that she keeps. When Agnes's grandmother makes an unexpected visit to the commune, she discovers a violent secret that the Believers are desperate to keep quiet. And when Agnes's little brother is seriously injured and Emmanuel refuses to send him to a hospital, Nana Pete takes the three children and escapes the commune. Their journey begins an exploration of faith, friendship, religion and family for the two girls, as Agnes clings to her familiar faith while Honey desperately wants a new future.