12 May 1940. Westminster, London, England: the early days of World War II.
Raybould Marsh, one of "our" Britain's best spies, has travelled to another Earth in a desperate attempt to save at least one timeline from the Cthulhu-like monsters who have been observing our species from space and have already destroyed Marsh's timeline. In order to accomplish this, he must remove all traces of the supermen that were created by the Nazi war machine and caused the specters from outer space to notice our planet in the first place.
His biggest challenge is the mad seer Greta, one of the most powerful of the Nazi creations, who has sent a version of herself to this timeline to thwart Marsh. Why would she stand in his way? Because she has seen that in all the timelines she dies and she is determined to stop that from happening, even if it means destroying most of humanity in the process. And Marsh is the only man who can stop her.
"Necessary Evil" is the stunning conclusion to Ian Tregillis's Milkweed series.
A precarious balance of power maintains the peace between Britain and the USSR. For decades, Britain's warlocks have been all that stands between the British Empire and the Soviet Union. Now each wizard's death is another blow to Britain's national security.
It's 1939. The Nazis have supermen, the British have demons, and one perfectly normal man is caught in between. Raybould Marsh is a British secret agent in the early days of the Second World War. During a mission back in the Spanish Civil War, he saw something strange: a German woman with wires going into her head. She looked at him as if she knew him. When the Nazis start running missions with people who have unnatural abilities ? a woman who can turn invisible, a man who can walk through walls, and the woman from Spain who can use her knowledge of the future to twist the present ? Marsh is the man who gets to handle the problem. He rallies the secret warlocks of Britain to hold the impending invasion at bay. But magic always exacts a price. Eventually, the sacrifice necessary to defeat the enemy will be as terrible as outright loss. Alan Furst meets Alan Moore in the opening of an epic of supernatural alternate history, the tale of a twentieth century like ours but also profoundly different.