Necessary evil

by Ian Tregillis

"12 May 1940. Westminster, London, England: the early days of World War II. Again. 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 spectors from outer space to notice our planet in the first place. His biggest challenge is the mad seer Greta, one of the most...