[[WMG: Nemausus/Menausus, the third layer of Arcadia, didn't fall into Mechanus -- [[TabletopGame/{{Eberron}} it became Daanvi]].]]

Think about it -- the description of Daanvi sounds just like the description of Arcadia. Arcadia is a lawful and slightly-good plane, while Daanvi is a straight-up lawful plane. And how did Arcadia lose its third layer? ''That layer became too lawful.''

[[WMG: The Lady of Pain is the AnthropomorphicPersonification of the Spire]]

It would explain her omnipotence (The spire is infinite), and her connection to Sigil.

[[WMG: Kylie is Autochon's daughter]]

Unbeknownst to him, Noxana became pregnant from their tryst but due to the scandal gave up the child. Shemeshka conceals this fact from him because of the possibility that they could form an alliance against her if they knew, and because protecting his competition galls Autochon.
* There could be some truth to the existing rumor about Kylie's parentage, Noxana might have been one of Shemeshka's progeny whom she placed in the temple as a spy, or even a polymorphed Shemmy herself.