Necessary Evil British warlocks and German superhuman soldiers collide in this chilling novel of an alternate 20th century

Ian Tregillis triumphantly concludes his astonishing, brilliant, pulse-pounding debut trilogy ... a book that veers precipitously from unexpected and chilling ruminations on the inherent evil of precognition; to the questions of loyalty and betrayal so thorny that they need a time-travel loop to really be explored; to spy-thriller action sequences that will keep you up under the covers with a flashlight, turning pages and unable to sleep. This is a remarkable set of books, and with all three in hand, would make a fabulous spring read -- Cory Doctorow BOING BOING Darkly fascinating ... A thoroughly satisfying conclusion to an imaginative tour de force KIRKUS REVIEWS Tregillis' conclusion of the Milkweed Triptych is the piece de resistance 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 RT BOOK REVIEWS