The Morlocks of Krisek Yor are descended from ancient dwarves who originally inhabited Arak Yor. Over generations in the Glitterdrift, they have gradually become more and more adapted to the subterranean environment. Their skin is pale and almost devoid of pigment, and their eyes take up most of their face. To the people of Khorvaire, they look like monsters, unusual even by the standard of the continent's "monstrous" ancestries.
They've retained the intelligence and spark of inspiration that they gained in Arak Yor, and many of them are engineers and artificers as a result. Their limited access to materials in the Glitterdrift have hampered their development, but they do impressive things with the limited resources they have.