|Is it a bird? A plane? No, It's Plato!|
You could say, "Oh but there are dogs in Krok, and in Celestia. And there are other worldly creature in wizard city." But they traveled one way or another to there destination, there heritage is from there home world.
You could also say magic, but it seems that theory would also be crass, because the way the worlds were made, in all of the creation story's, Yes even the giant bone of Marlybone theory, were very unmagical, from wars, to over sized dog treats. Nothing was adding up.
Until very recently, there was no evidence that this theory would hold water, but then wizards started to explore and gather data...
They discovered multiple sightings of pixies, imps, and colossi. The theories were starting to be recognized and researched, but they were still missing why the main races were static to there own world.
Then crafting came into view and more evidence that the worlds were connected at one point.
Here are some examples that they found; Fire Flowers, Black Lotus, and Cat Tails were all found on multiple worlds.
But after all that the one question remains. Why aren't the main races on multiple worlds?
Only two beings in the spiral may know the answer, but ones memory is broken, and the other is missing.
On a world called Wintertusk.
Will this burning question be explained in the new world? Well have to wait and see, but in the mean-time
Tenure for Dworgyn!