Knacker

Knackers are almost exclusively found in the deep caverns of Nietskiel. They are, by far, the deepest dwelling sentient race, with some living in excess of one thousand feet below the surface.

Speaking a language that even their closest relatives, The Goblins, have a difficulty understanding - The Knackers seem to be still be in a neolithic cultural stage. While they have made plentiful use of stone and chitin tools, they seldom use fire, instead seemingly terrified of it.

Physical Description
Directly descended from Goblins, and therefore Orcs as well, Knackers are diminutive creatures that resemble goblins, albeit substantially shorter. While a Goblin may reach heights of four foot, a Knacker will seldom exceed heights of one and a half feet.

Knackers have very limited sexual dimorphism, and thus it is generally difficult for a non-Knacker to tell the two genders apart. As a general rule, however, female Knackers will have longer head hair, are marginally shorter, and have (for their size) rather pronounced breasts. The ears of both genders protrude almost horizontally from the head, and have noses which are generally flat to the face, while the eyes of a Knacker commonly bulge, a side affect from the shrinking of the skull, and for the same reason, their sharp, almost needle-like teeth protrude heavily.

Language
The language of the Knackers is one that even the most talented linguists of the Dacheimian Empire have immense difficulty understanding. The rapid speed at which the diminutive greenskins speak only compounds the issue. Nonetheless, the general consensus amongst most Human scholars is that Knackers speak a vastly simplified form of "Old Orcish", although the difference between what the Knackers currently speak and modern day Orcish is far too different for any meaningful communication to be made.

Brownies
On occasion, a Knacker may, through means not fully understood, leave the caves that it has lived in all its life, and make a pilgrimage to the surface. Upon reaching the surface, the Knacker will attempt to locate any larger creature's dwelling near it, typically Orcs (although in cases where Knackers have been introduced to human society, they have no reservations about human homes), and begin to assist in any ways that it deems necessary. It's worth noting that what it deems important aren't always what the homeowner wishes. At this stage, the Knacker is commonly referred to as a "Brownie", and is often the only way that surface-dwellers will ever encounter a Knacker.

Not all Brownies are Knackers. A similar species in behaviour, known as an Urisk or simply a "Brownie", looks very different.