>>ISTR at least one case of speculation that it was carved from the
>>roots and/or branches of Yggdrasil that penetrated into the world in
>>question... definitely not from a UF story, but an interesting concept
>>nonetheless.
>
>That is from UF, actually. The so-called "castle in the sky" above
>Cephiro's dueling floor is, in fact, carved from a root cluster of
>Yggdrasil, at the very base of Svartalfheim. Like I say, though,
>purpose unknown. The svartelves don't appear to have had anything to
>do with it; they don't go that far down. It's usually a lovely sunny
>day in the metaphysical space between Svartalfheim and Cephiro.
>Svartelves don't like that.

Oh, ok. And yeah, I can see Svartalves avoiding that sort of thing.
("Sir, we're detecting dangerous levels of electromagnetic radiation out there."
("Very strange. What about the local life-forms?"
("They seem to have evolved to detect the radiation and use it to track each other.
("Good gods, that's perverse...")

>
>Cephirean speculations as to its origins and purpose usually have
>something to do with Ryo Zan Paku, because Cephirean speculations
>about virtually any other mystery usually have something to do
>with Ryo Zan Paku. :)
>

Huh. So 'Ryo Zan Paku' is the Cephirean equivalent of 'A Wizard Did It'?