Cheryl Bardoe is the author of several acclaimed books for young readers, including China: A History; Nothing Stopped Sophie: The Story of Unshakable Mathematician Sophie Germain; and Mammoths and Mastodons: Titans of the Ice Age. She lives in Connecticut.

Alan Marks began his career illustrating for magazines and newspapers. His first children's book Storm, written by Kevin Crossley Holland, won the Carnegie Medal. Alan now illustrates a wide variety of subjects, from nursery rhymes to war poetry. He is the illustrator of the Boston Globe-Horn Book Award Honor Book A Mother’s Journey, Behold the Beautiful Dung Beetle, Planet Zoo, The Spirit of the Forest, and more. Alan lives in an old house in the Kent countryside with his wife and two daughters.