Everything changed when the Traveler arrived in Sol.
It gave us gifts that transformed the solar system and the nature of human life. Moreover, it ushered in the Golden Age, a renaissance of scientific and cultural achievement. Despite all the good it has done for us, we still know nothing of the Traveler's origin or the reason it gifted Lightbearers with paracausal powers.
Unbeknownst to us, each of those miracles came at a price. Threats greater than we could have ever fathomed have found their way to our doorstep in pursuit of the Traveler.