"The Eternity Man" is the story title to the twelfth issue of the first Swamp Thing ongoing comic book series by DC Comics. The story was written by Len Wein with artwork by Nestor Redondo, who also provided embellishment work for this issue. The cover art was penciled and inked by Nestor Redondo. The colorist and letterer for this story are uncredited. It was edited by Joe Orlando. This issue shipped with an October, 1974 cover date and carried a cover price of 20 cents per copy (US).
The Swamp Thing finds himself catapulted into various time-epochs by a mysterious gem with a seven-pointed star, and faces danger in each era. And in every epoch, he encounters the same man in different incarnations.