Rob Roy is a historical novel by Walter Scott. It is narrated by Frank Osbaldistone, the son of an English merchant who travels first to the North of England, and subsequently to the Scottish Highlands to collect a debt stolen from his father. On the way he encounters the larger-than-life title character of Rob Roy MacGregor. Though Rob Roy is not the lead character (in fact the narrative does not move to Scotland until half way through the book) his personality and actions are key to the development of the novel. (Summary from Wikipedia)