Thorn — Sarah Rayne

For several hundred years the Ingram family has lived under a curse - the taint of homicidal madness which manifests itself in the females every 80 or 90 years - and it appears the madness has struck again in the beautiful Imogen. But Dan Tudor, a writer commissioned to produce a feature on the family, is not convinced. His investigations are about to lead him to a horror beyond imagining.