In 1939, shortly before World War II breaks out in Europe, thirteen-year-olds David and Hannah attempt to escape Nazi Germany, along with over nine hundred other Jewish refugees, on the historic voyage of the St. Louis.Together, they discover a Nazi spy plot, and dare to interfere, nearly at the cost of Hannah's life.When the ship is forced to return to Europe, the passengers are divided between four countries. Despite their wishes, David and Hannah are sent to different destinations ... perhaps separated forever.Learning about these refugees of nearly a century ago will give young readers insight into today's refugee crisis. It will help them understand why sometimes people must leave their countries, and what can happen to them when forced to return to regions they are trying to escape.