The Dreel was a hive-mind, composed of trillions upon trillions of virus-sized units, which infected intelligent beings like a disease and took over the mind of an occupied being, utterly. It had occupied planets throughout the galaxy, making their entire population its mind-slaves, and was on its way to conquering the entire galaxy-until a cop on the frontier planet of Parkatin discovered the truth. Those whose minds were still free fought back,...