Ashyn

Ashyn is known as a burning world within the Rosharan system, which suffered a cataclysm long ago (as revealed in Oathbringer, supposedly due to Surgebinding.)
The cataclysm that the people caused, which they fled, is the one that forced people into the skies.Book signing, Beaverton, OR, 11/16/17 
==Description==
People there live in very small pockets of survivability - while a number of other people there fled to Roshar.Arcanum Unbounded, pg. 535
==Characteristics==
The Tranquiline Halls of Vorinism are thought to exist on Ashyn.
The magic system there was always disease-based.Release party, Orem, UT, 11/6/18 Viruses and bacteria, various strains of them, have evolved in-line with the investiture on this world to grant one a magical ability when one catches a disease, because each wants one to stay alive long enough to transmit it.Book signing, Seattle, WA, 1/7/15
==References==
Category:Cosmere