The Acacia Trilogy is a series of fantasy novels written by author David Anthony Durham. It consists of three books: Acacia: The War with the Mein, Acacia: The Other Lands, and Acacia: The Sacred Band. The story is set in a richly imagined world where various kingdoms are intertwined through politics, war, and magic. The trilogy follows the Acacian royal family as they navigate challenges posed by rival factions, including the Mein, a brutal warrior race. Themes of power, betrayal, and redemption are explored throughout the series, making it a compelling read for fans of epic fantasy.