The Doomsday Conspiracy
Sidney Sheldon
 The protagonist of the story is Robert Bellamy, a man hired by the NSA to locate the several bus passengers in Switzerland who had accidentally seen a weather balloon with some top secret equipment (later on identified as a UFO) collapsing in the woods. As Robert locates the passengers one by one, they are mysteriously killed. Each murder has been meticulously staged to appear as an accident. Robert's marriage also dissolves, as his wife, starved for attention by Robert, marries a rich business tycoon Monte Banks. As Commander Robert Bellamy of US Navy is in the verge of completion of his mission, he learns that he is being hunted by an unknown lethal force. Robert runs escaping from the attackers from Washington to Zurich, Rome and Paris. As the story unfolds to reveal Bellamy's past - why the woman he loves cannot return his love, why his most beloved friends become his deadly enemies. Bellamy finally learns that the investigation ends in the place where he had started it.