This book was published 2015 by Alfred A. Knopf Books for Young Readers .

Janet Schulman has written and adapted many books for children. She is the former head of children's book marketing at Macmillan US and publisher at Random House. She has worked in children's books for over forty years. Peter Malone has illustrated a number of picture books for Orion. He was commissioned by the Royal Mail for a set of Christmas stamps. He lives in Bath with his wife and two daughters.