Saving the world is a test no school of magic can prepare you for in the triumphant conclusion to the New York Times bestselling trilogy that began with A Deadly Education and The Last Graduate. Almost singlehandedly--although backed by an increasingly large cadre of genuine friends--El has changed the nature of the Scholomance forever. But now that she is back in the real world, how will the lessons she learned inside the school apply? Will her grandmother's prophecy come true? Will she really spell the doom of all the enclaves forever? As the quest to save her one true love ramps up, however, El is about to learn the most significant lesson of all--the dire truth on which the enclaves and the whole stability of the magical world are founded. And being El, she is not likely to let it lie....