What happens when someone leaves their family? In this book, the sequel to 'Life and Death', Bianca does just that. She is the wife of Rolf Mohrengass and the mother of their two children. She wants to find herself and a new profession before returning. However, the others want to search for her and in the process, they initially discover themselves. The title of the book plays with the transparency of glass, the many colors of its spectrum, and its ability to become a mirror.