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.
"[in] a series of elegant, resonant haiku, [Sally M Walker] lays out the essentials of earth science, communicating, with inexorable calm, how vulnerable humans remain to changes in their great habitat." -- Sally M Walker * The Times Literary Supplement *