'The story of the aftermath of a teenage girl's suicide. Her story is revealed in her diary, left for her former best friend instead of a suicide note. This reveals the girl's low self-esteem and obsessive crush on a teacher, whose accidental drowning she blames on herself, and so she takes her own life...Jade knows that her best friend, Fern, has died. Yet she can hear Fern tapping on the window every night - what is Fern's ghost trying to tell her?'
Source: Bookseller's website