|Mayflower paperback, 1969 reprint. Cover artist uncredited.|
"Inter-stellar travel is only for the rich, the colonists, the administrators. But Marvin Flynn, tucked away in the sleepy town of Stanhope, longs to travel in space.
So he answers the advertisement to swap bodies with a Martian.
It is his passport to the most amazing science-fiction adventure you will ever read!"