The novel “Orion” by Ben Bova was published for the first time in 1984. It’s the first book in the Orion series.
John O’Ryan is aware of the fact that he has extraordinary skills but doesn’t know their origin. His life doesn’t seem exceptional but one day ends up in the middle of what looks like a terrorist attack. With him a beautiful woman who caught his attention is involved and ends up killed not in the attack but in the strange events that follow it.
Determined to understand more about it, John O’Ryan starts investigating and finally finds someone who reveals his true identity. He’s not a normal human being but Orion, the champion of all humanity, whose destiny is to save it by fighting Ahriman the Dark One, who wants to destroy it, through time. The woman who charmed him is more than a human and acts alongside Ormazd the Golden One, Orion’s creator.