Spirits of the land, irijaat are a race of fey native to the frigid lands of the north, where they alternately aid and harass traveler, depending upon their whims. Consummate shapechangers, irijaat are rarely seen in their true form, preferring to instead assume the guise of various animals and humanoids. Whatever their form, it is supernaturally difficult to remember specific details about an irijaat. Those that see through an irijaat's disguise will often forget that they realized the irijaat was not what it seemed.

Those few sages who have seen and remembered an irijaat's true form note that the irijaat physically resemble the tuniit, a primative race of dwarf-like humanoids that went extinct many centuries ago. The tuniit are only remembered through the artwork and other relics left behind by their ancient race, so the connection between the tuniit and the irijaat is not fully understood.