Summary:
Alan Green is a space traveler stranded on a barbaric planet who has been taken slave and made a consort to an insipid and smelly queen. His slave-wife, though beautiful and smart, nags him constantly. He’s given up hope of ever returning to Earth when he hears of two astronauts who have been captured in a kingdom on the other side of the planet, and sets out on an action-packed journey on a ship sailing across vast grasslands on rolling pin-like wheels in a desperate scheme to save them and return home. Due to the non-renewal of its copyright, this book is in the public domain.(Summary by Mark Nelson)
On Librivox: http://librivox.org/the-green-odyssey-by-philip-jose-farmer/
On Amazon: http://www.amazon.com/Green-Odyssey-Philip-Jose-Farmer/dp/1722134402/ref=sr_1_4?ie=UTF8&s=books&qid=1262995959&sr=1-4