During the war between the Zhell and the Taung species on the planet Notron, a battle occurred at the city of Great Zhell. During the fighting, a volcano erupted and destroyed most of the city, generating a plume of ash that lasted for two years. The battle led the Taung to name themselves Dha Werda Verda, or the Shadow Warriors.
- Star Wars: The Old Republic (Codex entry)
- The Essential Chronology (First mentioned)
- The New Essential Chronology
- Galaxy at War
- The Essential Atlas
- Book of Sith: Secrets from the Dark Side
- The Essential Guide to Warfare