From EQ/EQ2 Creative Director Akil “Lyndro” Hooper on the EQ2 Forums:
The Pygmies of the Tranquil Sea lived their lives not knowing that they shared their island with a subterranean threat. Deep underneath Dshinn live the lizardkin tribe, Allu’thoa. Using their magic to control the flows of magma, the Allu’thoa carved out their home, a below-ground labyrinth known as Zavith’loa. Worshipping their enigmatic god of lava and prophecy, the Allu’thoa lived for millennia sequestered from the world above.