On his thirty-sixth birthday, Travis Cornell hikes into the foothills of the Santa Ana Mountains. But his path is soon blocked by a bedraggled Golden Retriever who will let him go no further into the dark woods. That morning, Travis had been desperate to find some happiness in his lonely, seemingly cursed life. What he finds is a dog of alarming intelligence that soon leads him into a relentless storm of mankind’s darkest creation....

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.

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.

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?

Ruthless defense attorney Tatum Graham has been living large in Miami, but when his recently acquitted client claims another victim, Tatum has a crisis of conscience. Disillusioned, he heads to his small Utah hometown for a simpler life...but that’s not what he finds. Soon after he arrives, Tatum’s childhood crush offers him a job at the county attorney’s office and assigns him a murder case.