Hellwalker by Carolyn Vesser

Paperback. Condition: Good. 1988. Tor. 1st Printing. Stock Image.

He was an exile who violated the isolation edict. He was a criminal who raised an army of conquest on a backward planet. He had mental powers that made him irresistible to the innocent natives. They called him Hellwalker. The Federation has to stop him--secretly. And the one man who volunteers is his brother. He will be set down alone on an alien world to find his older, stronger brother and bring him back alive... if he can.