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What might be different if a person could co-exist in an alternate world? Howard Silk, a low-level agent whose career is winding down at a Berlin-based United Nations spy agency, unwittingly learns the answer. Upon discovering his organization is harboring a secret, that of a gateway to a parallel dimension, Howard becomes immersed in a mysterious world of espionage, intrigue, and government conspiracies. There, the only man Howard can trust is Prime, his almost identical counterpart from a divergent reality. Wikipedia