The 6th ExtinctionSigma Force Series
A Sigma Force Novel (Sigma Force Series Book 10)
Explore the mysteries of the sixth extinction in a thrilling tale of scientific intrigue and mystery. When a remote military research station calls for help, soldiers arrive to find every living organism for fifty square miles is dead. Commander Gray Pierce and Sigma must decode an ancient map from the Library of Alexandria to uncover Earth's past and prevent the coming extinction of mankind. Will they succeed or is it too late?