Ellie Robinson is a multi medal-winning British swimmer, and a world-record breaker in the 50m and 100m butterfly. She won Gold and Bronze medals at Rio 2016 and a Commonwealth Gold in 2018, before competing in the Tokyo 2020 Paralympics. Named BBC Young Sports Personality of the Year in 2016, she has also been awarded an MBE. Ellie is now a student and author, and GOLD MEDAL MYSTERIES is her first book for children.

James Lancett is a London based illustrator and director. As a child growing up in Cardiff he was obsessed with cartoons, video games and all things fantasy. As he grew up and became a lot more beardy these inspirations held strong and so he moved to London to study BA Illustration and Animation at Kingston University. This degree opened the door to a job he had dreamt of ever since he was a kid and he now works as an illustrator and animation director.