The contagion was caused by a self-replicating spore. It was insidious because the spore was a chameleon, able to disguise itself as the victims own body chemistry. No one knew they were infected. No one understood the changes taking over their organism. They were not even aware of any changes. However an outside observer could see how the infection racked the mind of the victim. An alien observer saw the changes in skin color, the distortion of limbs, and the mania in behavior. Yet, each victim was unaware. The life of the species changed dramatically. A world was at risk.