The Invasion of England vividly describes the sieges, battles, and atrocities of the second invasion of England -- 150 years after the Norman Conquest. It was led by Louis the Lion, who won control of one-third of the land, including London, within months of landing. Increasing numbers of barons defected to the rebels' cause until a sustained counter-attack took place following the death of King John. McGlynn also writes of the powerful figures involved in the invasion, including Pope Innocent III and the Archbishop of Canterbury.