Allthewaydown
Allthewaydown is one of the nine levels of the Underworld.
First named in The Yellow Knight of Oz, ch. 7
After that come Down, Upsidedown, Farther Down and Allthewaydown.
Where this is
placed Beyond the desert worked out
read out of the chapters cited on this page, not stated in any one sentence of them
One of the nine levels of the Underworld (Subterranea) reached by rocket from Long Island, not from Oz and not placed inside an Oz country.