The Swordsman of Mars
by Otis Adelbert Kline
An outcast from a wealthy East Coast family, Harry Thorne is looking for the greatest adventure of his life. The similar-looking Martian Sheb exchanges his corpses with Takkor and moves to Mars, inhabited by powerful warriors, beautiful women, and terrifying monsters millions of years ago. Sheb Takkor, the great swordsman of his own right, must break through the deserts and forests of ancient Mars - or die by experimentation, to save the beautiful Princess Thane and defeat their sworn enemy, Sel Han!