The Secret Place by Tana French

The photo on the card shows a boy who was found murdered, a year ago, on the grounds of a girls' boarding school inthe leafy suburbs of Dublin. The caption says 'I know who killed him'. Detective Stephen Moran has been waiting for his chance to get a foot in the door of Dublin's Murder Squad - and one morning, sixteen-year-old Holly Mackey brings him this photo. The SecretPlace -- a board where the girls at St. Kilda's School can pin up theirsecrets anonymously -- is normally a mishmash of gossip and covert cruelty, but today someone has used it to reignite the stalled investigation into the murder of handsome, popular Chris Harper. Stephen joins forces with the abrasive Detective Antoinette Conway to find out who and why. Read a sample.