Sirona is a small moonless planet with rings similar around it. The rings cast a shadow on the surface of the planet called the Skar of Sirona where most of the extraplanar/evil creatures reside.. The planet has to main continents: Arcadius and Degatu. Arcadius is a pangean continent and much larger than the other. Nearly all races live on Arcadius aside from dragonborn and lizardfolk.
Much is happening on this continent, and it's up to you to discover them.