Mark Sperring is the author of The Sunflower Sword, Captain Buckleboots on the Naughty Step, and Green. He is a bookseller with a huge wealth of knowledge of the children’s market. Mark lives in Bristol, England.

Layn Marlow grew up in Essex, England. After studying history of art at Reading University, Layn began her career working for the library service. She lived in Belgium for several years but it was on her return to the UK that she enrolled as a mature student at Southampton University and received a first class degree in illustration.