Lost Days: Final Novel of the Lost Millennium Trilogy (Volume 3)

When a designer plague threatens every living thing on earth, a desperate world sends two 21st century soldiers back in time. Their mission is to win a war that was lost six thousand years ago and change human history from conquest to cooperation. Now, believing their goal accomplished, they return to a world radically altered, but perhaps not for the better in Lost Days. The world is healthy and at peace when Lieutenant Launa O'Brian and Captain Jack Walking Bear return from 4,000 B.C. But a different sort of plague has infested society. Suspicion and hostility poison the air. Racial and ethnic hatred are sanctioned by the powers that be, and it is not only Jack's people who are confined to "reservations." Now the two are contemplating a journey back to the Neolithic period - in a desperate attempt to change history once more. But this time, there is no guarantee they will ever return.