Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

American radiologist Peter Ross just wanted a vacation. But when he meets the beautiful Angela Locke on a Spanish beach, he soon finds himself caught in a murderous crossfire between rival gangs seeking a precious artifact. From Barcelona to the rain-swept streets of Paris, from the towers of the Alhambra to its darkest catacombs, Peter Ross is an ordinary man in desperate circumstances: racing to uncover a secret lost for centuries, before he becomes its next victim.

Political radical John Wright is plotting an act of mass destruction - and federal agent John Graves has him under surveillance, trying to figure out what the plot is. When a government computer is hacked and a high-security shipment of nerve gas gets hijacked, Graves puts the pieces together - but can he stop Wright from unleashing his weapon before it kills a million people...including the President of the United States?

Deep in the African rain forest, near the legendary ruins of the Lost City of Zinj, an expedition of eight American geologists are mysteriously and brutally killed in a matter of minutes. Ten thousand miles away, Karen Ross, the Congo Project Supervisor, watches a gruesome video transmission of the aftermath: a camp destroyed, tents crushed and torn, equipment scattered in the mud alongside dead bodies - all motionless except for one moving image - a grainy, dark, man-shaped blur.

A classic thriller from #1 New York Times bestselling author Michael Crichton, Sphere is a bravura demonstration of what he does better than anyone: riveting storytelling that combines frighteningly plausible, cutting-edge science and technology with pulse-pounding action and serious chills.