Sonia Games was born Zofia Roza Sieradzka to a Jewish family in the small town of Praszka, Poland. Her parents were Arnold Sieradzki, a businessman, and his wife Esther. Separated from her family, Sonia reached her teens during the Nazi Occupation of her country in World War II. She survived by posing as a Catholic Pole, and smuggled weapons to the resistance movement. After the war, she emigrated to the USA. In 1958, she married Jack Games, a psychiatrist, with whom she had three children. She told the early history of her life in her memoir Escape Into Darkness, published in 1991. She also wrote other books, including stories for young people.