Getaway with Murder

good story about Marnie, a talented interior designer who decides to leave a well paid secure job in London to start her own company. She buys a disused farm in a small village just north of Milton Keynes on the Grand Union Canal, with the intention of converting it to an office and cottages. As the premises are ruins she has to live on 'Sally Ann', her sisters boat. The village has a long history and many of the families have ancestors that lived in the village during the Civil War. When a murder is committed it looks like hatred from 350 years ago has resurfaced to claim another victim. There seem to be quite a few people with various motives and opportunities to have committed murder but why would any of them want to go to such extreme lengths.