Dead Girls by Abigail Tarttelin
When her best friend Billie is found murdered, eleven-year-old Thera - fearless and forthright - considers it her duty to find the killer.
Aided by a Ouija board, Billie's ghost, and the spirits of four other dead girls, she's determined to succeed. The trouble with Thera, though, is that she doesn't always know when to stop - and sometimes there's a fine line between doing the right thing and doing something very, very bad indeed.
Tense, visceral and thought-provoking, Dead Girls is the new novel from Abigail Tarttelin, the critically acclaimed author of Golden Boy.