Terracotta Monarch

Now the Voormis had, from their remotest origins, considered themselves the chosen minions of Tsathoggua, the sole deity whose worship they celebrated. And Tsathoggua was an earth elemental ranged in perpetual and unrelenting enmity against the Rhan-Tegoth and all his kind, who were commonly accounted elementals of the air and were objects of contempt to those of the Old Ones, like Tsathoggua, who abominated the airy emptiness above the world and by preference wallowed in darksome and subterranean lairs.
— Lin Carter and Clark Ashton Smith, “The Scroll of Morloc”

The Voormis are the three-toed, umber-coloured, fur-covered humanoids sometimes described as Yeti-like, though they are carefully differentiated from their traditional enemies (the shaggier-haired but superficially similar Gnophkehs who worshiped the Great Old One Rhan-Tegoth). Both of them are further differentiated from true humans. The shamanistic Voormis communicate by dog-like howls.

Their ancestors were originally thralls of the Serpent-people (Diamond Purple) who escaped after the continent of the latter sank to the sea. After their emancipation the Voormis established a thriving culture in the surface Hyperborea before the coming of humans; establishing citadels in the island of Ta-Shon and adding to the arcane knowledge of the Pnakotic Manuscripts. Their civilization eventually fell into demise. With constant warfare with their archenemies, the Gnophkeh, they grew smaller and smaller in number until the remnants retreated underground in an effort to imitate their deity, Tsathoggua.

By dwelling subterraneously, it should perhaps be noted here, the Voormis were but imitating the grotesque divinity they worshipped [sic] with rites we might deem excessively sanguinary and revolting. As it was an article of the Voormish faith that this deity, whom they knew as Tsathoggua, made his abode in lightless caverns situated far beneath the earth, their adoption of a troglodytic mode of existence was to some extent primarily symbolic. Their eponymous ancestor of their race, Voorm the arch-ancient, had quite early in their history promulgated a doctrine which asserted that their assumption of a wholly subterranean habit would place them in a special relationship of mystical propinquity with their god, who himself prefered to wallow in the gulf of N’kai beneath a mountain to the south considered sacred by the Voormis.
— Lin Carter and Clark Ashton Smith, “The Scroll of Morloc”

The most savage of the Voormis survivors became restricted to caves in the upper slopes of the Eiglophian mountains while others fled south. Some Voormis settled in the Northern hemisphere and begin worshipping Ithaqua the Wind walker, and become known as the Sasquatch and Yeti.

Survivours of the Voormis settled in K’n-yan (or Xinaián) a subterranean land / underground realm beneath Oklahoma. The human-like people of K’n-yan (Gold Javelin) resemble native Americans of the region and are sometimes referred to as the “Old Ones”, despite being of very different heritage to the exonomes of that name.

http://en.wikipedia.org/wiki/Voormis

Terracotta Monarch

The Elder Stain Sodium_Noir