In Douglas Preston's Impact, Wyman Ford is tapped for a secret expedition to Cambodia... to locate the source of strangely beautiful gemstones that do not appear to be of this world.

A brilliant meteor lights up the Maine coast... and two young women borrow a boat and set out for a distant island to find the impact crater.
A scientist at the National Propulsion Facility discovers an inexplicable source of gamma rays in the

The Trojan War rages at the foot of Olympos Mons on Mars — observed and influenced from on high by Zeus and his immortal family — and twenty-first-century professor Thomas Hockenberry is there to play a role in the insidious private wars of vengeful gods and goddesses. On Earth, a small band of the few remaining humans pursues a lost past and devastating truth — as four sentient machines depart from Jovian space to investigate,