Superhumans and dark magic collide in secret supernatural history of Twentieth Century events - the final book in this landmark series Tregillis' conclusion of the Milkweed Triptych is the pièce de résistance of the series. Necessary Evil is a perfect marriage of science fiction, fantasy and alternate history. His narrative flows seamlessly, and his plot is fantastically convincing. Tregillis' characters astound, the villains as well as the heroes, especially honorable, tormented yet heroic Raybould