The myth world is flat and shaped like a disk. I ran across the definition of the Great Devoid in the glossary of the Myth Manual and it stated that the Great Devoid was both bottomless and at the center of the world. For this to be true the myth world must be:
a) Flat, as a spherical world has no center on it's surface
b) Shaped Like a Disk as for the Devoid to be Bottomless is must go all the way through the myth world.
Additional proof comes from the supposedly "mad" Journeyman who claimed that the Myth world was flat and shaped like a coin with the world we know on one side and the dead bound be magics "no human can master" on the other.
