Wow! I wondered if anyone would know what I was talking about. I first read about "Gladiator" in the late 1960's from a book by Sam Moskowitz that was in my local library. Then a few months later I found a lancer paperback at a bus station near my home. The similarities to superman are startling! You can down load a copy of this excellent novel from this site. http://manybooks.net/titles/wyliepother07gladiator.html