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Stone Angel by Jane Yolen and Katie May Green
This story of a Jewish family fleeing Paris during WWII is beautifully written and illustrated. After the Nazis arrive, the family flees to the woods where they hide with a group of resistance fighters. They then climb several mountains to reach the sea where they meet a boat to take them to the English countryside. It is a great book for introducing children to the plight of Jewish people in Europe during WWII and would make a great addition to upper grade WWII text sets.