"When I was a child, a thing of the ancient earth would come to me from underground, from the caves in my yard, carrying a cloak over its back, a twig in its left hand,and a lantern in its right. It would step under my window and take the light from the lantern and begin speaking."
So begins the story of the narhoojai, also called "angels in the earth," nanguraji, reptilians, shehti, onago, and serpent-brothers, live beneath the earth in great caverns amid mysterious machinery and ancient ruins. They build stone cities in the fungus jungles and keep to mysterious councils amid ichor, the violent liquid that pumps in long streams and is rumored to be the blood of the earth.
The narhoojai are said to be shapeshifters, their forms as liquid as the surface of the water, taking on humanoid shapes in as much as humans want to meet them eye-to-eye. Otherwise, they are said to fly like storks, speak into minds (which should be impossible), and know stories that only the earth still knows. They are generally stoic when meeting with humans, and are supposedly the descendants of beings that once ruled the world.
They have an intense liking for milk, blood, and a mixture of both, and have been known to impersonate humans for weeks just to get a small amount of it.
Psychic subterranean shapeshifting reptilians. Most humanoid race other than humans, I promise. Based mostly on a combination of Mahars from Pellucidar and Grith from Xenozoic Tales, with liberal amounts of modern conspiracy culture thrown in.
(sigh) I gotta get this series.