Upon a small hill, that was in reality a wave of lava that had been frozen solid, stood a collection of the 'small' individuals that accompanied the Yeti's in their invasion. The brain to their brawn.
Of course these beings were not actually small, although they were slightly shorter than the average human male by a few inches.
Most of their features were hidden by their clothing, which was heavy with furs and leather from thick, blubbery beasts.
Although their heads were mostly wrapped up, with only some white clouds puffing out from the rags that covered their mouth. What could be seen showed that they had pale blue skin, and icicles hanging off their long, pointed ears as if they had been frozen solid for centuries.
Slender fingers, some of which had a black hue to them, were wrapped around the body of bows that had the same frozen aesthetic as everything else around them. Even the string on these bows looked like it was made of pure ice, because it actually was.
