David Almond is the highly acclaimed author of many award-winning novels for children, such as The Boy Who Swam with Piranhas, illustrated by Oliver Jeffers; The Tale of Angelino Brown, illustrated by Alex R. Smith; Skellig; Clay; Kit's Wilderness; War Is Over, illustrated by David Litchfield; The Color of the Sun; and Brand New Boy, illustrated by Marta Altés. His numerous awards include the Carnegie Medal and the Hans Christian Andersen Award, the highest international prize for children's authors. David Almond lives in England.

Lizzy Stewart has written and illustrated picture books for children, including There's a Tiger in the Garden, which won the Waterstones Children's Book Prize and World Illustration Award. She has also written and illustrated books for adults, including the graphic novel Alison. Lizzy Stewart lives and works in London.