The great Mayan civilization disappeared more than 800 years ago. Could we be next? Your friend Tom disappears on assignment in Mexico searching for clues to the sudden collapse of the Mayan civilization. Then a pool of human blood appears at the Mayan ruin where Tom was last seen alive. Has he travelled back in time? This book is different to other books. You and YOU alone are in charge of what happens. You must use all of your numerous talents and enormous intelligence. The wrong decision could end in disastereven death. But don't despair. At any time, YOU can go back and make another choice, alter the path of your story, and change its result.