What is the main setting in the novel, Written in Bone?

Nearly the entire story takes place on the small, mountainous island of Runa. It is an island in the Scottish Hebrides with tall cliffs, ancient ruins, and a small and extremely insular population. Historically bad weather and rough water plague Runa during the novel. Communication with the mainland is lost, adding to the norror and fear of the citizens and making the police's job considerably more difficult. The island has one main road. The majority of the population lives together in a small village that flanks the main harbor. The wealthy Strachans are set apart in a large mansion with its own harbor. The abandoned cottage, the resting place of the first dead body, is isolated from the rest of the island, as are the burial cairns in the mountains that Michael Strachan likes to visit alone so he can 'think'.