Tom Lasker is about to have his life turned upside down. In the midst of his wheat fields two thousand miles from any ocean, he digs up the remains of a forty-two foot sailboat in near perfect condition. It's true the wheat fields had once been on the shoreline of a great inland sea, but that was ten thousand years ago, during the last Ice Age. Stranger still, the vessel is made from alien materials and bears an impossible atomic code.

When a subsequent discovery is made, a structure called the 'Roundhouse', the region becomes the focus of dangerous political conflict and self-seeking ambition, for the Roundhouse is revealed to be the doorway to another world...