"With Moore at Corunna" by G. A. Henty is a historical novel written during the late 19th century. The story is set against the backdrop of the Peninsular War, focusing on the adventures of Terence O'Connor, the son of a captain in the Mayo Fusiliers, as he navigates the challenges faced by the British army in Portugal amidst the threat of Napoleon's forces. At the start of the narrative, we are introduced to Terence, a young and mischievous character who aspires to join his father's regiment as they prepare for foreign service. His father struggles with the decision of what to do with him as he seems too young for a soldier's life yet eager to prove himself. Despite the concerns of his father and the regiment's colonel regarding Terence's playful nature, a series of events see him nominated for a commission as an ensign. The opening portion of the book establishes Terence's character, the dynamics within the regiment, and sets the stage for his subsequent adventures as the British forces disembark to face their enemies, promising a blend of humor and military action. (This is an automatically generated summary.)