"The Thirsty Sword: A Story of the Norse Invasion of Scotland (1262-1263)" by Robert Leighton is a historical novel likely written in the late 19th century. The story revolves around the characters Kenric, the son of Earl Hamish of Bute, and Ailsa, a compassionate girl aware of the tensions brewing in their land due to the ambitions of the treacherous Earl Roderic. As the tale unfolds, themes of loyalty, betrayal, and the supernatural weave into a backdrop of a turbulent historical period marked by Norse invasions. At the start of the novel, we meet Ailsa, who is disheartened by the absence of her friend Kenric, while simultaneously a hunt is underway in Bute. The scene swiftly shifts to Kenric’s casual yet adventurous nature as he joins Ailsa, and together they encounter Elspeth, a mysterious old woman rumored to be a witch, who warns them of imminent danger regarding Kenric’s father, Earl Hamish. The plot thickens with the arrival of three Norsemen, whose intentions initially appear friendly, especially as they engage in a hunting expedition with Earl Hamish, but foreshadowing hints at treachery in their midst. The opening chapters set up a complex web of relationships and impending conflict, highlighting the themes of both human and supernatural stakes in their lives. (This is an automatically generated summary.)