Sarrukh

A magically powerful race of saurian humanoids that came about due to breeding experiments in which the Visitors coupled with humans. At some point during the aliens' manipulations, the Sarrukh achieved the ability to sexually reproduce with one another. Eventually, some of the original visitor-human progeny died out, but of those who did not some were further experimented upon using gene-splicing and geomancy and they developed into the first of dragonkind.

Sarrukh and Dragonkind dominated Earth for centuries thereafter as co-equal alpha races. It is unclear now in the present day whether dragonkind magically developed the ability to assume humanoid form, or if instead this was at-will transformation made possible by mastery of genetics.

Some sages also now speculate that their may still be living Sarrukh who have chosen to assume and permanently maintain dragon form — perhaps to better observe ongoing experiments they are conducting. And whether any pure-blooded Visitors remain on Earth, one can only guess.

A few sages believe the Sarrukh may have been responsible for the establishment of Ss'zuraass'nee. And most scholars agree that the Yuan-ti either descended from, or were created by, the Sarrukh.