In the vast jungles of Janus, the people of Ift and Naill Renfro, former Earthman and now halfling, were in trouble: Earthmen were destroying their homeland and they had no idea why. Until Renfro discovered that people who looked like Ifts, whose minds were controlled by an unknown, unnamable foe, had set the Earthmen against them. Now Renfro and the Ifts had to battle an enemy who looked like themselves -- with no way of telling the difference!