Hemingway once said that being able to keep a secret was more valuable than the secret itself. And he should know, for by the end of his life he'd kept more than a few. Echelon 6 agents John Clark and Mike Charles have stumbled upon one of these, and its ramifications are profound. For Hemingway himself possessed a dark weapon still sought today by nations around the world; a creation whose father was the greatest scientific mind in human history.