The theme of the novel "Manituana" is the American Revolutionary War. It highlights the clash of three worlds: the old world of the Native Americans, the feudal world of the British Empire, and the new world of the rebellious settlers, whose emerging rule is based on colonization and violence against the indigenous population. The story centers around the legendary Mohawk chief Joseph Brant, who fights against the settlers on the side of the British. The novel deconstructs the myths of the American Revolutionary War from the perspective of the Native Americans.