Polly Ho-Yen was born in Northampton and brought up in Buckinghamshire. She studied English at Birmingham University before working in publishing for several years. Her first novel, Boy in the Tower, was nominated for the Carnegie Medal and shortlisted for the Blue Peter Book Award and the Waterstones Children's Book Prize. Her second novel Where Monsters Lie and her third novel, Fly Me Home, were also nominated for the Carnegie Medal.
Patricia Hu is an artist, graphic designer and illustrator born and raised in Colombia. She studied Graphic Design in Colombia, but ended up doing a Masters in Illustration in Barcelona. She always believes that there's always a story behind her illustrations. Her artwork is made of a pinch of bold colours that contrast between each other and lots and lots of details.