Not all Lüm's museums are in the Arts District, but it does have more than its share, including most of the largest and most famous museums in the city. The neighborhood has museums specializing in all the standard subjects one would expect: art, natural history, anthropology, and various sorts of magic, among others. One of its most unusual museums is the Lüm Museum of Æalogy, which has exhibits on other planes of existence, and even has portals within to other planes that visitors can look through—suitably protected from otherplanar incursions. The head curator of the Museum of Æalogy, Eëhauok, is themself an otherplanar being, though one that seems to be otherwise unknown. Where exactly the museum's owners found Eëhauok and how they induced them to take employment at their museum has not been publicy revealed.

Eëhauok lives within the museum itself, in a combination office and apartment suite on the top floor that is not open to the public. They have access to a balcony, and sometimes like to stand on the balcony gazing out at the city and apparently deep in pondering thought; their very presence acting as a draw for the curious. At other times, they roam the museum speaking with visitors, sometimes answering questions and sometimes giving information unprompted. They occasionally leave the museum for festivals and events, but have never been known to set foot outside the Arts District; if they spend any time on their home plane or on other planes, they do not speak of it.

Eëhauok is a knobby lavender figure with eight asymmetrically placed limbs, each of which usually ends in a blunt point but can protrude tendrils when Eëhauok has to manipulate something. At their top is a blob-shaped swelling that apparently serves it for a head; it can manifest eyes and orifices on its head in apparently random locations, but it often leaves the head featureless. Eëhauok does not walk, but slides about on the base of its body, apparently propelled and kept upright by magic rather than by balance. It covers the middle of its body and the bases of its limbs in gray cloth sleeves that apparently serve it for clothing; whether this is something Eëhauok wore on their home plane or whether they don it here as a nod to human notions of modesty is unclear.