Everything you need to understand or teach A Line to Kill by Anthony Horowitz.
In the murder mystery A Line to Kill by Anthony Horowitz, Horowitz and his muse, Detective Inspector Daniel Hawthorne, attend a literary festival to promote their newest book. They are not expecting to encounter a murderer during their visit. However, Charles le Mesurier and his wife Helen, the owners of the company sponsoring the event, are both murdered within hours of each other. Horowitz and Hawthorne must determine who killed them. Horowitz hopes the outcome will be fodder for his next novel. The novel explores different kinds of addiction and the perception of justice.