"In general we know the PIE were extremely advanced for their time-their use of horses, the wheel, tools, and agriculture made them a force in the region, and their descendants went on to dominate the world from Europe to India. As I said, today roughly half the world speaks a Proto-European language. In many ways, they are the ultimate lost civilization."
"I never advanced high enough to know the true Immari history. It was closely guarded and assigned its own mythological status. Dr. Grey would have known the history-he was a member of the Council-one of the three highest-ranking officers. Do you think that's why he included the note on the Immaru and PIE? Do they have something that relates to the plague?"