The gripping new YA thriller from the author of FOUR GOOD LIARS, and the perfect read for fans of A GOOD GIRL’S GUIDE TO MURDER.
Science-obsessed Grace’s fresh start with her dad in Devon is derailed when the Echo in their new house comes alive at midnight and says: I’m going to murder you.
Grace figures out it’s an old message, and that the four previous owners are dead. Now she has to find a murderer, using the methodology of a chemistry experiment … before she ends up dead herself.