In this standalone novel set in a girl's board school during WWII, Annabel Warnock, a teacher with a secretive past, is murdered on school grounds. But Annabel's ghost is trapped, unable to move on. As she haunts the grounds and school, she discovers a hidden world - students, staff and servants are riven with deadly rivalries and dangerous tensions. And one of them is her killer. From the author of the 'James Marwood and Cat Lovett' series.