Set in 1751, the book features some thrilling elements such as a sinister, foul-tempered uncle, a ship full of villainous sailors, a shipwreck on a gloomy, deserted island, political intrigue, the perilous proximity of Red Coats on the Scottish Highlands. The central theme of the novel is friendship and loyalty. David is a likable hero and his courage, strength, and determination are tested throughout his adventurous journey. With the backdrop of picturesque Scottish Highlands, readers are introduced to the geography and written with a mixture of English and Scottish Lowland dialogs. The ethical diversity through the Highlands has a major impact on David, and he acquaints and learns to value their sense of justice as he considers his.