Catherine Doyle grew up beside the Atlantic Ocean in the west of Ireland. Her love of reading began with great Irish myths and legends, and fostered in her an ambition to one day write her own. She is the author of The Lost Girl King and Pirates of Darksea as well as the bestselling Storm Keeper trilogy, set on the magical island of Arranmore where her grandparents grew up. The first book in the trilogy, The Storm Keeper's Island, won the Books Are My Bag Readers Award and the IBW Children's Book Award. Catherine lives in Galway.

Rachael Dean is a UK-based children's book illustrator, who lives on the coast near Liverpool. She has created illustrations for middle grade fiction as well as picture books, and was recently selected to illustrate Dame Jacqueline Wilson's new titles.