After an undersea lab conducting research on a rare jellyfish known as the blue medusa mysteriously disappears and a bathysphere harboring Joe Zavala is attacked by an underwater vehicle and left helpless on the sea floor, Kurt Austin puts the NUMA team on the case.

After a deadly Fly Flu spreads throughout the world, survivors Nico, her dog, young artist Kit, and the mysterious Deliverer roam the earth, seeking to evade the Flies and find a place where life and love can thrive again.

"In this propulsive medical thriller--from the Pulitzer Prize winner and best-selling author--Dr. Henry Parsons, an unlikely but appealing hero, races to find the origins and cure of a mysterious new killer virus as it brings the world to its knees. At an internment camp in Indonesia, within one week, forty-seven people are pronounced dead with acute hemorrhagic fever. When the microbiologist and epidemiologist Henry Parsons travels there on behalf...