Now available in trade paperback,New York Timesbestselling author Michael Crichtons classic science fiction thriller.

In the middle of the South Pacific, a thousand feet below the surface of the water, a huge vessel is discovered resting on the ocean floor. It is a spaceship of phenomenal dimensions, apparently undamaged by its fall from the sky. And, most startling, it appears to be at least three hundred years old. But even more fantasticand frighteningis what waits inside