This is Book 14 in the Cool Science S. Series. See all Cool Science S. books here.
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Sally M. Walker studied geology and is the author of many non-fiction books, including Secrets of a Civil War Submarine, which won the Sibert Award. She lives in Illinois.
William Grill is the author-illustrator of Shackleton's Journey, a New York Times Best Illustrated Children's Book of the Year and winner of a Kate Greenaway Medal. He lives in London.
