Sibéal Pounder is the author of the much-loved and highly successful children's fiction series Witch Wars, Bad Mermaids and Neon's Secret UNIverse, as well as Tinsel , a funny feminist take on the Father Christmas story. Before becoming a full-time writer, she researched and wrote for the Financial Times . Her first book, Witch Wars , was shortlisted for the Waterstones Children's Book Prize and the Sainsbury's Children's Book Award and she was also a World Book Day author in 2019. Sibéal recently moved to Edinburgh, Scotland. Sarah Warburton grew up in Anglesey, North Wales, but after studying Illustration at the University of the West of England, she made Bristol her home. She is an internationally acclaimed picture-book illustrator, with titles including Peter Pan and the Princess series, as well as The Don't Panic Gang! with Mark Sperring.