Sixteen-year-old Catholic Stefania Podgórska has worked in the Diamant family's grocery store for four years, even falling in love with one of their sons, Izio; but when the Nazis came to Przemysl, Poland, the Jewish Diamants are forced into the ghetto but Izio's brother Max manages to escape, and Stefania embarks on a dangerous course--protecting thirteen Jews in her attic, caring for her younger sister, Helena, and keeping everything secret from the two Nazi officers who are living in her house.

Based on the true story of Stefania Podgórska. Includes an author's note that outlines the later lives of Stefania, and the many of the other people who appear in the book. Includes discussion questions. "Reese's YA book club"--Cover. "This book was originally published in hardcover by Scholastic Press in 2020"--Copyright page.