Cerrie Burnell is a presenter and writer, best known for her work in children’s TV, and she featured in the Guardian’s 2011 list of 100 most inspirational women. Her other titles in this same series include Harper and the Scarlet Umbrella and Harper and the Circus of Dreams.

Laura Ellen Anderson is the incredibly talented illustrator of the John Smith Is Not Boring series and The Witch Wars series, as well as all the other Harper titles.