The 6th Extinction

In this gripping novel by James Rollins, a remote military research station's distress call reveals a mass, mysterious extinction across a vast area, prompting Commander Gray Pierce and Sigma to investigate a threat rooted in Earth's distant past. As they uncover clues from an ancient map and explore the frozen remnants of a once-green Antarctica, they face a race against time to prevent an impending global catastrophe. Combining scientific intrigue with historical mystery, the story explores the profound origins of a deadly threat to mankind's future.