Nestled in a sub-tropical garden overlooking the River Dart, Greenway has an exceptional and enviable location. It certainly caught the eye of Agatha Christie, who knew the area as a child and, having made her name as a world-famous crime-writer, made it her holiday home. Greenway was the family's retreat, far from public life. Her grandson, Mathew Prichard who has provided the guidebook's foreword, remembers visits to Greenway usually took place...