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The 6th Extinction (Sigma Force Series)
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A remote military research station sends out a frantic distress call, ending with a chilling final command: Kill us all! Personnel from the neighboring base rush in to discover everyone already dead-and not just the scientists, but every living thing for fifty square miles is annihilated: every animal, plant, and insect, even bacteria.
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 d...
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