The novel “The Eternal Champion” by Michael Moorcock was published for the first time in 1970. It’s the first novel in the Erekosë series.

John Daker is a man of the 20th century. His sleep is disturbed by strange dreams until he answers a call from another time. He gets evoked in a world at war where he’s told that he’s Erekosë, a legendary hero of the past brought back to life to save humanity from the Eldren enemies.

John has no memories of Erekosë yet has a strange familiarity with the legendary sword that belonged to the hero. He agrees to fight to save humanity, also because the Eldren are described as demons. Before going to war at King Rigenos’s side, John / Erekosë meets princess Iolinda, with whom he begins a romantic relationship. The situation becomes complicated when humans don’t look so good, the Eldren don’t seem and strange dreams seem like memories of other lives in other worlds.