Dalton grew up as an only child in the English countryside during the 1950s. Her father was not always around, but when he was, he would tell her fantastic stories, often with her as the principal character. Her father left the family for good. Dalton missed him and his stories, which led her to the fantasy section at her local library, thus sparking life-long love of fiction.
After undertaking jobs such as waitressing, cleaning and factory work, Dalton went on to study at University of Warwick and soon started writing.
Annie Dalton's books Night Maze and The Real Tilly Beany were shortlisted for the Carnegie Medal. The After Dark Princess won the Nottinghamshire Book Award, while Naming the Dark and Swan Sister were on the shortlist for the Sheffield Children's Book Award.