Laurence Pringle has written over 100 books for children, including BMP's Billions of Years, Amazing Changes and nine titles in the popular Strange and Wonderful series. Internationally, his books have sold more than three million copies. He is the recipient of Orbis Pictus Honor Award and a Lifetime Achievement Prize from the American Association for the Advancement of Science, and his work consistently receives recognition from the National Science Teachers Association and the National Council of Teachers of English. He lives in West Nyack, New York. Visit laurencepringle.com. Joan Paley has been illustrated many children's books including Star of the Sea by Janet Halfmann and The Emperor Lays an Egg by Brenda Z. Guiberson, which was a School Library Journal Best Book. She lives in Florida.