Title rated 4.5 out of 5 stars, based on 4 ratings(4 ratings)
Unknown, 2006
Current format, Unknown, 2006, Ace trade paperback edition., No Longer Available.
Unknown, 2006
Current format, Unknown, 2006, Ace trade paperback edition., No Longer Available. Offered in 0 more formats
Computer science guru Alan Turning paves the way for esoteric mathematical computations that Nazi Germany uses to perform a summoning, bringing an unexpected evil to Earth through a portal to an alternate universe.
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