A Star of David necklace or a rosary? In 1939 Poland, a young girl is asked to give up one of these and accept the other without understanding why. However, what she must part with happens to be her most prized possession--a precious gift given to her by her father before he died. The child's mother then teaches the girl a "game" to prepare her for what is to come. As the Nazis invade the country, the mother is forced to make a heartbreaking sacrifice. This beautifully illustrated picture book is loosely based on a true story. Although told through the eyes of a young girl, the book is written for readers of all ages. It also contains two study guides. One is for children, parents, and teachers. The other is for adults who may gather in places of worship, book clubs, and small groups. Discussion topics include themes of compassion, empathy, and diversity.