Lin Carter 
Outworlder 

Morgan Outworlder was born of Centaurus-stock, but two short years on Bargelix had made him almost a native of his adopted world. Trained to be a societic engineer in the Imperium, Morgan found little need for his science on the outworlds . . . but much need for a strong arm and a sharp sword. For Bargelix was a world in struggle, battling the dark forces of magic. Morgan was marked as an exile because he had been caught up in the Tarsnian struggle for self-government – and when the Freedom Riots failed, he found himself barred forever from the worlds of the Imperium. But the way back to the inner stars lay through the struggle for his adopted world . . . and the man from the stars was hero enough to battle the darkest of magicians!