Raymond F. Jones 
Alien [EPUB ebook] 

There lived on Mars, 500, 000 years ago, a race so intelligent, so superior to ours, that they knew the secret of everlasting life. They chose instead-to have one man come back to life exactly 500, 000 years after his death! His reappearance in the Galaxy World was enough to set planet against planet, ideology against ideology, man against man, and life against death.