"In addition to the Powers, who don't rightly count, and the races which are more properly accounted sub-species of humans, we have Khazad and Nimîr. There probably aren't words for them in your language. It's only the Nimîr who are relevant here, they're immortal. The ancient ancestors of the Adûnaim - that's us, the people of Anadûnê - were very, very young, several of the great houses of one of the tribes of the Nimîr took them into their service and, ah, civilized them. We were taught that they were the firstborn of êru, the creator, as we are the secondborn, and that while their particular gift is to remain eternally bound to Abatta, ours -" he raises an eyebrow "- is to leave it."