William Gray Beyer was a Philadelphia railroad worker and policeman who moonlighted writing fiction. His first effort, the whacky and whimsical Minions of the Moon, proved so popular that he brought back Mark Nevin for several more Argosy installments, including Minions of Mercury and Minions of the Shadow.
Move over, Buck Rogers! When Mark Nevin was put under general anesthetic, he expected to wake up minus his appendix. That was all. To his shock and horror, he discovered himself 6,000 years in the future, long after mankind had reverted back to savagery.
Fortunately for Mark, the surgeon who accidentally placed him in suspended animation carefully laid him in a crypt containing all the means for survival available in the 20th century. And he would need them, for he was about to plunge into a world more dangerous and primitive in the long-dead one he had known. And Mark Nevin would not be alone. There was the beautiful Nona Barr. And the mysterious Omega, a disembodied moon-mind with the personality of a mischievous child yet possessing the transformative power of a god. Not to mention assorted cannibals and an actual dragon.