Robert Swindells was born in Bradford, England. He was a primary school teacher, served in the Royal Air Force, and was involved in the peace movement before becoming a full-time author. Robert is the winner of numerous awards including the prestigious Carnegie Medal for his bestselling novel Stone Cold. He lives in England.

Leo Hartas has been a professional illustrator for over 30 years and started drawing from the moment he could hold a pencil. He uses a range of mediums including traditional ink, line and watercolour, acrylics, digital, DTP and 3D.