""...I'll certainly be on the lookout for the next instalment in the life of DI Frohman." "
When the badly decomposed body of a teenage girl is washed up on the flooded fens outside Cambridge, it's up to DI Chloe Frohman and her partner Morris Keene to discover her identify before the press can pounce on the case.
Mathilde Oliver, the autistic daughter of a Cambridge don is trying to discover the writer of mysterious letters to a student at Corpus Christ College who doesn't seem to exist.
As Frohman and Keene link together the sparse clues from the body and the letters, their investigations lead them to an imposing country manor where secrets, lies, long buried crimes and fresh new horrors await them.