In five years, little green men are going to invade Earth--and the only man who knows is Professor Emil Vlasov. Is Vlasov crazy? Or is something actually watching the Earth . . . waiting . . . From the bestselling author of Northworld.

Skyripper 2016, Audible Studios on Brilliance

ISBN-13: 9781522666042

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Skyripper 1992, Tor Books, New York

ISBN-13: 9780812520040

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Skyripper 1986, Tor Books, New York, NY

ISBN-13: 9780812536188

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