(4) K-3 Illustrated by Olga Lee. This picture book tells the story of the Mud Angels -- mostly American students in Florence who jumped into action when mud from the Arno River flood threatened to destroy artifacts and books in 1966. Vivid text from the perspective of a young fictional narrator observing the action (she is not allowed to help save the books because of contamination dangers) shares an inspiring, little-known piece of history. Digital illustrations are static but effective in conveying the overwhelming mud’s damage. An author’s note gives background.

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