27 September 2017.
ISBN: 978-1-4721-2537-8 (HB)
The girl in the title is Allie Kennaway, an 18-year old who leaves home with her friends to enjoy the School prom. She loses contact with her friends and is found beaten to death - and so the hunt for the murderer begins. It seems that Allie has been the victim of a hate crime because of her transgender identity and, as the investigation progresses, her father and younger sister struggle to come to terms with their loss. Theirs is not the only family which has to deal with the consequences of this crime. The detectives too face their own problems in handling such a sensitive case – personal goals do not disappear in the face of tragedy. In particular, Jade, the new member of the team, feels that her contributions are not being valued by her boss and colleagues and perhaps, of all the characters, strikes a slightly discordant note.