Esme Kerr

After summer break Anastastia and Edie are back at their boarding school, Knight's Haddon, but the friendship they forged last year is threatened by the arrival of a new girl, Janet, who befriends the orphaned Edie--but when Edie begins to think that Janet may not be exactly what she seems to be, events take a dangerous turn.

Orphan Edie is sent by her art dealer guardian to Knight's Haddon School, on a secret mission to find out whether Anastasia, a Russian princess, is being persecuted by the other girls. But what Edie uncovers instead is a dangerous mystery that only the girls themselves can solve.