Nora Kelly, a young archaeologist in Santa Fe, receives a letter written 16 years ago, yet mysteriously mailed only recently. In it her father, long believed dead, hints at a fantastic discovery that will make him famous and rich - the lost city of an ancient civilization that suddenly vanished a thousand years ago. Now Nora is leading an expedition into a harsh, remote corner of Utah's canyon country, but what she unearths will be the newest of horrors.

Just days before a massive exhibition opens at the popular New York Museum of Natural History, visitors are being savagely murdered in the museum's dark hallways and secret rooms. Autopsies indicate that the killer cannot be human.... But the museum's directors plan to go ahead with a big bash to celebrate the new exhibition, in spite of the murders.

Will Robie may have just made the first - and last - mistake of his career.... It begins with a hit gone wrong. Robie is dispatched to eliminate a target unusually close to home in Washington, D.C. But something about this mission doesn't seem right to Robie, and he does the unthinkable: He refuses to kill. Now, Robie becomes a target himself and must escape from his own people.

Fleeing the scene, Robie crosses paths with a wayward teenage girl, a 14-year-old runaway from a foster home. But she isn't an ordinary runaway....

At 12, Gideon Crew witnessed his father, a world-class mathematician, accused of treason and gunned down. At 24, summoned to his dying mother's bedside, Gideon learned the truth: His father was framed and deliberately slaughtered. With her last breath, she begged her son to avenge him. Now, with a new purpose in his life, Gideon crafts a one-time mission of vengeance, aimed at the perpetrator of his father's destruction. His plan is meticulous, spectacular, and successful.But from the shadows, someone is watching. A very powerful someone, who is impressed by Gideon's special skills.

Former naval doctor Peter Crane is summoned to a remote oil platform in the North Atlantic to help diagnose a bizarre medical condition. But when he arrives, Crane learns that the real trouble lies far below on "Deep Storm", a stunningly advanced science-research facility built two miles beneath the surface on the ocean floor. The top-secret structure has been designed for one purpose: to excavate a recently discovered undersea site that may hold the answers to an ancient mystery.