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The 6th Extinction: A SIGMA Force Novel


A remote military research station in Utah sends out a frantic distress call, ending with a chilling final command: Kill us all! Personnel from the neighbouring base rush in to discover everyone already dead - and not just the scientists, but every living thing for fifty square miles has been annihilated. The land is entirely sterile-and the blight is spreading. To halt the inevitable, Commander Gray Pierce and Sigma must unravel a threat that rises out of the distant past, to a time when Antarctica was green and all life ...

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The 6th Extinction: A Sigma Force Novel
2015, William Morrow & Company

ISBN-13: 9780061785696

Mass-market paperback

The 6th Extinction: A SIGMA Force Novel
2014, HarperLuxe, New York

ISBN-13: 9780062326430

Large type / large print

Trade paperback

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