Karen Gray Ruelle is a former librarian turned full-time author and illustrator of children’s books. Her books include the Harry and Emily easyreaders, as well as picture books and nonfiction. Hidden on the Mountain, cowritten with Deborah Durland DeSaix, was a Sydney Taylor Notable Book and received a starred review from Kirkus Reviews. She lives in New York City. Deborah Durland DeSaix is a former college professor who now devotes her time to painting, ceramics, and writing. Hidden on the Mountain, cowritten with Karen Gray Ruelle, was a Sydney Taylor Notable Book and received a starred review from Kirkus Reviews. She lives in Lisbon, Portugal.