Geraldine McCaughrean is an award-winning author who has written more than 130 books and plays for children and adults. She recently won the Whitbread Children's Book Award for the third time with Not the End of the World, and her other awards include the Carnegie Medal, the Guardian Fiction Award, and the Smarties Bronze Award. She lives in Berkshire, England. Visit www.geraldinemccaughrean.co.uk.

Scott M. Fischer is a painter by birth, a musician by training, and a storyteller by choice. Best known as the author/illustrator of JUMP!, he is also the illustrator of Twinkle, the New York Times bestselling Peter Pan in Scarlet, Lottie Paris Lives Here, and Lottie Paris and the Best Place. Scott lives with his wife, daughter, and a menagerie of animals in Belchertown, Massachusetts.