This is the story, played out by our heroine Sweetheart, of a girl who goes on a journey to fulfill a promise. This book is her journal. As she goes about her magical path, exploring wildly different terrains, encountering civilizations, townspeople, and great monsters, she slowly reveals what it cost her to take this journey and finally, why and for what. A playful tale of loss, heartbreak, and hope, To the Moon and Maybe Back may resonate long and deep for those of who wish to look back with nostalgia and perhaps to even have a good cry.