Casper and Jasper's
A pocket dimension store in Nightfall owned by the Tiefling sisters, Casper and Jasper, that seems to sell all sorts of items. All of the employees there do not seem normal, and tend to materialize when one needs help finding something. Jasper seems to keep her finger on the pulse of the thoughts of her customers while in the building. Casper also provides the service of identification of magic items.
It is well known that the sisters and the store is watched closely by the Queen of Nightfall, as they have a reputation of having twisted magic, that even she shudders at what they do.