Garden of Gorba
The Garden of Gorba is a magical walled garden that Grampa, Tatters and Bill discover after falling through a hollow tree.
First named in Grampa in Oz, ch. 5
“This is the Garden of Gorba,” announced the sign.
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
An enclosed pocket realm with no sky, reached by falling down a hollow tree, that leads on (via Fire Island and the volcano) directly to Ev - part of the same underground route explicitly placed in Ev, not an Oz country.
What the books say it is
appearance flowering vines and bushes, paths of silvery sand 1 chapter
Flowering vines and bushes filled the air with a delicate fragrance; paths of silvery sand wound in and out among the trees and arbors; crystal fountains splashed between the flower beds; and bordering each path and grass grown lane were trees glowing with magic lanterns, lanterns that bloomed as gaily as the blossoms themselves and lighted up the garden with a hundred rainbow sheens.
Grampa in Oz, ch. 5