Typical Tranter
As all of Nigel Tranter's books, this is a splendid primer on Scottish geography, an engaging travelogue, an adequate recitation of historical events, and a mediocre story. The landscape of Scotland is the true main character of the book, with the human characters just marching through it acting their part. Not great literature, not even great storytelling, but good enough to be satisfying if the reader already has a dedicated interest in Scottish history. It's better if you read it with a map in hand.