Regarding race relations: in the taxonomy of races Goblins are probably most competitive with (and thus most malevolent toward) Dwarves and Gnomes--races which they see as similar but in some ways superior. Dwarves are skilled at metalcrafting and mining, have overall thrived on those efforts, and are skilled in battle. Gnomes, while weaker than Dwarves on the combat scale, have become quite successful in magical endeavors and in craftwork of different kinds. In the same way that Humans view giant races as "other" and generally feel more passionately (good or bad) about more similar races, Goblins have nursed their enmity toward Dwarves and Gnomes.

They are seldom seen because most Goblins live at level 5 or lower. Few have the skill or aspiration to rise above the fodder and enter into the world of combat and adventure shared by the more influential races of Thera. (That said, if the experiment works well, they could just become a fixture in the Clan and Goblin Village rather than a seasonal race.)