Rose Impey was born in Northwich, Cheshire. When she first left school she worked in a bank, but soon realised this was not for her, and went back to college to train to be a primary school teacher.

Rose spends a lot of time visiting schools to read her work. Her books are widely published worldwide, including the United States, Australia, France, Denmark, Germany and Spain.

Ali Pye has illustrated more than 30 books, which have been published around the world. She is the author of several picture books, and the 'Harry Stevenson' young fiction series. Ali studied fashion at Central St Martins before taking an MA in illustration at Kingston University. She lives in London with her family, two guinea pigs and the world's greediest spaniel.