Sophie Wills grew up in Chelmsford, Essex. She failed the 11+, had a weekend job at a boarding kennels where she suffered workplace bullying from a goat and nurtured a dream to have a career she could do in her pyjamas. She worked at two London publishers before finally achieving her ambition by going freelance in 2003. She entered Mumsnet's first Bedtime Story competition in 2012 and Michael Rosen picked out as a winner her story about a pig-riding sheriff. Since then, she has been writing offbeat and funny stories for 8-12-year-olds, including The Orphans of St Halibut's. She lives on the edge of south-east London with her family.

David Tazzyman is an internationally acclaimed award-winning illustrator. He worked as a commercial illustrator before falling into children's publishing in 2006, illustrating Andy Stanton's Mr Gum series which went on to win numerous awards, including the first Roald Dahl Funny Prize in 2008. Now David mainly illustrates children's picture and fiction books and lives in Leicestershire with his partner and three children.