Hardcover first edition, first printing. Very fine (unread) copy in very fine jacket. Not a book club, remainder or ex-library copy. Signed by Haldeman on the title page. Mankind, inhabiting an Earth devastated by pollution and on the brink of war, receives a transmission from space announcing the impending arrival of extraterrestrials. But the astronomer who received the transmission begins to doubt its authenticity, and her investigation amidst the world-wide media circus leaves the question as to who, or what, the world is actually waiting for. By the author of Forever Peace (winner of the 1998 Nebula and Hugo awards) and The Hemingway Hoax (winner of the 1990 Nebula and 1991 Hugo awards.)